Add offline archive site with media thumbnails and player

CHANGELOG.md

@@ -27,6 +27,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - **Download limit** - Limit downloads to most recent N items per channel (default: 10)
 - **Interactive setup script** - Automated installation with user prompts
 - **Uninstall script** - Easy removal of the application
+- **Offline archive site builder** - Generates a static local website from the channel/claim/version folder tree
+- **Metadata/image backfill for skipped items** - Existing downloads can fill in missing JSON sidecars and thumbnails without re-downloading the file
 
 ### Technical Details
 - JSON-RPC client for lbrynet daemon
@@ -49,6 +51,5 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### Under Consideration
 - GUI interface
 - Docker containerization
-- Automatic thumbnail/metadata download
 - Video format selection
 - Bandwidth limiting

README.md

@@ -23,6 +23,8 @@ For most users:
 - **Flexible Input**: Accepts Odysee URLs, LBRY URIs, or claim IDs
 - **Audit Trail**: Maintains run history in JSONL format
 - **Dry-Run Mode**: Test what would happen without downloading
+- **Offline Archive Site**: Builds a static browseable website from the download tree, including channel/claim metadata and local file links
+- **Metadata Backfill**: Skipped existing downloads still get missing `channel.json`, `claim.json`, `metadata.json`, and image assets when available
 
 ## Installation
 
@@ -116,6 +118,9 @@ general:
   base_dir: "~/Documents/lbry-downloads"
   max_workers: 2
   dry_run: false
+  build_offline_site: true
+  offline_site_dir: "~/Documents/lbry-downloads/site"
+  fetch_missing_metadata_assets: true
   include_reposts: false
   direct_base_urls:
     - "https://odysee.com"
@@ -132,6 +137,8 @@ channels:
     content_mode: "non_video_only"
 ```
 
+When `build_offline_site` is enabled, the downloader writes a generated static site under `offline_site_dir` after each non-dry run. The site reflects the existing archive structure and links back to the real downloaded files under each channel/claim/version folder.
+
 ### Finding Channel URLs
 
 **Yes, you can get channel info from Odysee!** Here's how:

config.yaml.example

@@ -45,6 +45,12 @@ general:
   # If true, direct-mode runs will try the local lbrynet daemon as a fallback
   # after repeated rate-limit failures. Requires a working local daemon.
   direct_auto_fallback_to_p2p: false
+  # Build a static browseable offline site from the archive after each run.
+  build_offline_site: true
+  # Output directory for the generated static site.
+  offline_site_dir: "~/Documents/lbry-downloads/site"
+  # Fetch missing channel/claim images and sidecar metadata on reruns.
+  fetch_missing_metadata_assets: true
   
   # Download limit: Maximum number of downloads per channel per run
   # 

config_loader.py

@@ -120,11 +120,27 @@ def _parse_config(raw: Dict[str, Any]) -> Config:
                 "direct_auto_fallback_to_p2p",
                 config.general.direct_auto_fallback_to_p2p,
             ),
+            build_offline_site=general_raw.get(
+                "build_offline_site", config.general.build_offline_site
+            ),
+            offline_site_dir=general_raw.get(
+                "offline_site_dir", config.general.offline_site_dir
+            ),
+            fetch_missing_metadata_assets=general_raw.get(
+                "fetch_missing_metadata_assets",
+                config.general.fetch_missing_metadata_assets,
+            ),
         )
 
     # Validate and expand paths
     config.general.base_dir = str(expand_path(config.general.base_dir))
     config.general.state_file = str(expand_path(config.general.state_file))
+    if config.general.offline_site_dir:
+        config.general.offline_site_dir = str(expand_path(config.general.offline_site_dir))
+    else:
+        config.general.offline_site_dir = str(
+            expand_path(f"{config.general.base_dir}/site")
+        )
 
     # Validate max_workers
     if config.general.max_workers < 1:
@@ -271,6 +287,12 @@ general:
   direct_retry_backoff_seconds: 2.0
   # If true, direct-mode runs will try the local node after repeated 429s
   direct_auto_fallback_to_p2p: false
+  # Build a static offline browseable site from the archive after each run
+  build_offline_site: true
+  # Where to write the generated offline site
+  offline_site_dir: "~/Documents/lbry-downloads/site"
+  # Fetch missing channel/claim images and metadata assets on reruns
+  fetch_missing_metadata_assets: true
   # Download limit: Number of most recent matching downloads per channel (0 = all)
   download_limit: 10
 
@@ -304,3 +326,6 @@ def ensure_directories(config: Config) -> None:
     # Create channels directory
     channels_path = base_path / "channels"
     channels_path.mkdir(exist_ok=True)
+
+    if config.general.build_offline_site:
+        Path(config.general.offline_site_dir).mkdir(parents=True, exist_ok=True)

main.py

@@ -17,10 +17,12 @@ from downloader import DownloadError, Downloader
 from direct_downloader import DirectDownloadError
 from lbry_client import LbryClient, LbryClientError, check_daemon_health
 from models import Channel, Config, DownloadAction
+from offline_site import ArchiveSiteManager
 from planner import Planner
 from state_db import StateDb
 from utils import (
     create_channel_folder_name,
+    extract_channel_info,
     expand_path,
     format_summary,
     normalize_odysee_url,
@@ -124,6 +126,7 @@ def resolve_channel(
         folder = create_channel_folder_name(channel_name, channel_claim_id)
 
         value = claim.get("value", {})
+        channel_info = extract_channel_info(claim)
 
         channel = Channel(
             input=channel_input,
@@ -131,9 +134,18 @@ def resolve_channel(
             channel_claim_id=channel_claim_id,
             channel_name=channel_name,
             folder=folder,
-            display_name=value.get("title"),
-            permanent_url=claim.get("permanent_url"),
-            short_url=claim.get("short_url"),
+            display_name=channel_info.get("title"),
+            permanent_url=channel_info.get("permanent_url"),
+            short_url=channel_info.get("short_url"),
+            canonical_url=channel_info.get("canonical_url"),
+            description=channel_info.get("description"),
+            thumbnail_url=channel_info.get("thumbnail_url"),
+            cover_url=channel_info.get("cover_url"),
+            website_url=channel_info.get("website_url"),
+            email=channel_info.get("email"),
+            tags=channel_info.get("tags", []),
+            languages=channel_info.get("languages", []),
+            links=channel_info.get("links", []),
         )
 
         logger.info(f"Resolved channel: {channel_name} ({channel_claim_id})")
@@ -309,6 +321,7 @@ def run_sync(
     # Initialize planner and downloader
     base_path = Path(config.general.base_dir)
     planner = Planner(config, state_db.data, str(base_path))
+    site_manager = ArchiveSiteManager(config, base_path)
 
     if direct:
         logger.info("Using DIRECT mode (Odysee proxy for metadata, Odysee CDN for downloads)")
@@ -359,6 +372,9 @@ def run_sync(
             if existing.download_path:
                 channel.download_path = existing.download_path
 
+        if not dry_run:
+            site_manager.ensure_channel_artifacts(channel)
+
         # Enumerate claims
         claims = enumerate_channel_claims(client, channel, config)
 
@@ -432,8 +448,11 @@ def run_sync(
             try:
                 success = downloader.download(action, dry_run=dry_run)
 
-                if success and not dry_run and action.action not in ("skip_existing",):
-                    # Update state
+                if success and not dry_run:
+                    site_manager.ensure_claim_artifacts(channel, action)
+
+                    if action.action not in ("skip_existing",):
+                        # Update state only after metadata/artifacts are written
                         planner.update_state_from_action(action, success=True)
 
                     # Log to history
@@ -522,11 +541,18 @@ def run_sync(
 
         channel.last_scan = datetime.now(timezone.utc).isoformat()
         state_db.set_channel(channel)
+        if not dry_run:
+            site_manager.ensure_channel_artifacts(channel)
 
     # Save state
     if not dry_run:
         state_db.update_last_run()
         state_db.save()
+        if config.general.build_offline_site:
+            try:
+                site_manager.build_site(channel_index=state_db.data.channels)
+            except Exception as exc:
+                logger.exception("Offline site build failed: %s", exc)
         logger.info("State saved")
 
     return stats

models.py

@@ -41,6 +41,9 @@ class GeneralConfig:
     direct_max_retries_per_url: int = 2
     direct_retry_backoff_seconds: float = 2.0
     direct_auto_fallback_to_p2p: bool = False
+    build_offline_site: bool = True
+    offline_site_dir: Optional[str] = None
+    fetch_missing_metadata_assets: bool = True
 
 
 @dataclass
@@ -73,6 +76,15 @@ class Channel:
     display_name: Optional[str] = None
     permanent_url: Optional[str] = None
     short_url: Optional[str] = None
+    canonical_url: Optional[str] = None
+    description: Optional[str] = None
+    thumbnail_url: Optional[str] = None
+    cover_url: Optional[str] = None
+    website_url: Optional[str] = None
+    email: Optional[str] = None
+    tags: List[str] = field(default_factory=list)
+    languages: List[str] = field(default_factory=list)
+    links: List[Dict[str, Any]] = field(default_factory=list)
     last_scan: Optional[str] = None
 
     def to_dict(self) -> Dict[str, Any]:
@@ -86,6 +98,15 @@ class Channel:
             "display_name": self.display_name,
             "permanent_url": self.permanent_url,
             "short_url": self.short_url,
+            "canonical_url": self.canonical_url,
+            "description": self.description,
+            "thumbnail_url": self.thumbnail_url,
+            "cover_url": self.cover_url,
+            "website_url": self.website_url,
+            "email": self.email,
+            "tags": self.tags,
+            "languages": self.languages,
+            "links": self.links,
             "last_scan": self.last_scan,
         }
 
@@ -101,6 +122,15 @@ class Channel:
             display_name=data.get("display_name"),
             permanent_url=data.get("permanent_url"),
             short_url=data.get("short_url"),
+            canonical_url=data.get("canonical_url"),
+            description=data.get("description"),
+            thumbnail_url=data.get("thumbnail_url"),
+            cover_url=data.get("cover_url"),
+            website_url=data.get("website_url"),
+            email=data.get("email"),
+            tags=data.get("tags", []),
+            languages=data.get("languages", []),
+            links=data.get("links", []),
             last_scan=data.get("last_scan"),
         )
 

offline_site.py

@@ -0,0 +1,894 @@
+"""Metadata backfill and offline site generation for the archive."""
+
+import html
+import json
+import logging
+import mimetypes
+import os
+import shutil
+import subprocess
+import tempfile
+from pathlib import Path
+from typing import Any, Dict, List, Optional
+from urllib.parse import urlparse
+
+try:
+    import requests
+except ImportError:
+    requests = None
+
+from models import Channel, Config, DownloadAction
+
+
+logger = logging.getLogger(__name__)
+
+
+class ArchiveSiteManager:
+    """Maintains archive metadata sidecars and builds a static offline site."""
+
+    def __init__(self, config: Config, base_dir: Path):
+        self.config = config
+        self.base_dir = base_dir
+        self.channels_root = self.base_dir / "channels"
+        self.site_root = Path(config.general.offline_site_dir)
+        self.session = requests.Session() if requests else None
+        if self.session:
+            self.session.headers.update(
+                {
+                    "User-Agent": (
+                        "Mozilla/5.0 (X11; Linux x86_64) "
+                        "AppleWebKit/537.36 (KHTML, like Gecko) "
+                        "Chrome/123.0.0.0 Safari/537.36"
+                    )
+                }
+            )
+
+    def ensure_channel_artifacts(self, channel: Channel) -> None:
+        """Write channel metadata and fetch any missing channel assets."""
+        channel_dir = self._channel_dir(channel)
+        channel_dir.mkdir(parents=True, exist_ok=True)
+
+        channel_payload = {
+            "channel_claim_id": channel.channel_claim_id,
+            "channel_name": channel.channel_name,
+            "display_name": channel.display_name,
+            "input": channel.input,
+            "normalized_uri": channel.normalized_uri,
+            "permanent_url": channel.permanent_url,
+            "short_url": channel.short_url,
+            "canonical_url": channel.canonical_url,
+            "description": channel.description,
+            "thumbnail_url": channel.thumbnail_url,
+            "cover_url": channel.cover_url,
+            "website_url": channel.website_url,
+            "email": channel.email,
+            "tags": channel.tags,
+            "languages": channel.languages,
+            "links": channel.links,
+            "folder": channel.folder,
+            "download_path": channel.download_path,
+            "last_scan": channel.last_scan,
+        }
+
+        self._write_json(channel_dir / "channel.json", channel_payload)
+
+        if self.config.general.fetch_missing_metadata_assets:
+            if channel.thumbnail_url:
+                self._ensure_remote_asset(
+                    channel.thumbnail_url,
+                    channel_dir,
+                    basename="channel-profile",
+                )
+            if channel.cover_url:
+                self._ensure_remote_asset(
+                    channel.cover_url,
+                    channel_dir,
+                    basename="channel-cover",
+                )
+
+    def ensure_claim_artifacts(self, channel: Channel, action: DownloadAction) -> None:
+        """Write/update claim- and version-level metadata for a claim."""
+        version_dir = Path(action.target_dir)
+        claim_dir = version_dir.parent.parent
+        claim_dir.mkdir(parents=True, exist_ok=True)
+        version_dir.mkdir(parents=True, exist_ok=True)
+
+        file_path = self._resolve_action_file_path(action, version_dir)
+        file_size = file_path.stat().st_size if file_path and file_path.exists() else None
+
+        claim_payload = {
+            "claim_id": action.claim_id,
+            "channel_claim_id": action.channel_claim_id,
+            "name": action.claim_name,
+            "title": action.metadata.get("title"),
+            "permanent_url": action.uri,
+            "short_url": action.metadata.get("short_url"),
+            "canonical_url": action.metadata.get("canonical_url"),
+            "description": action.metadata.get("description"),
+            "thumbnail_url": action.metadata.get("thumbnail_url"),
+            "tags": action.metadata.get("tags", []),
+            "languages": action.metadata.get("languages", []),
+            "links": action.metadata.get("links", []),
+            "release_time": action.metadata.get("release_time"),
+            "timestamp": action.metadata.get("timestamp"),
+            "stream_type": action.metadata.get("stream_type"),
+            "source_media_type": action.metadata.get("source_media_type"),
+            "source_name": action.metadata.get("source_name"),
+            "claim_folder": self._path_label(claim_dir),
+            "latest_version_token": action.version_token,
+            "channel_folder": channel.folder,
+        }
+        self._write_json(claim_dir / "claim.json", claim_payload)
+
+        version_payload = {
+            "claim_id": action.claim_id,
+            "channel_claim_id": action.channel_claim_id,
+            "name": action.claim_name,
+            "title": action.metadata.get("title"),
+            "description": action.metadata.get("description"),
+            "version_token": action.version_token,
+            "permanent_url": action.uri,
+            "short_url": action.metadata.get("short_url"),
+            "canonical_url": action.metadata.get("canonical_url"),
+            "download_source": self._download_source_label(action),
+            "file_name": file_path.name if file_path else action.metadata.get("file_name"),
+            "file_size": file_size,
+            "stream_type": action.metadata.get("stream_type"),
+            "source_media_type": action.metadata.get("source_media_type"),
+            "thumbnail_url": action.metadata.get("thumbnail_url"),
+            "tags": action.metadata.get("tags", []),
+            "languages": action.metadata.get("languages", []),
+            "links": action.metadata.get("links", []),
+            "release_time": action.metadata.get("release_time"),
+            "timestamp": action.metadata.get("timestamp"),
+        }
+        self._write_json(version_dir / "metadata.json", version_payload)
+
+        if action.metadata.get("thumbnail_url") and self.config.general.fetch_missing_metadata_assets:
+            self._ensure_remote_asset(
+                action.metadata["thumbnail_url"],
+                claim_dir,
+                basename="claim-thumbnail",
+            )
+
+    def build_site(self, channel_index: Optional[Dict[str, Channel]] = None) -> None:
+        """Build a static offline site from the archive metadata."""
+        self.site_root.mkdir(parents=True, exist_ok=True)
+        self._write_text(self.site_root / "assets" / "style.css", self._site_css())
+
+        channels = self._collect_channel_records(channel_index=channel_index)
+        self._write_text(
+            self.site_root / "index.html",
+            self._render_index_page(channels),
+        )
+
+        channels_site_root = self.site_root / "channels"
+        for channel in channels:
+            channel_page_dir = channels_site_root / channel["folder"]
+            channel_page_dir.mkdir(parents=True, exist_ok=True)
+            self._write_text(
+                channel_page_dir / "index.html",
+                self._render_channel_page(channel, channel_page_dir),
+            )
+
+            for claim in channel["claims"]:
+                claim_page_dir = channel_page_dir / "claims" / claim["folder"]
+                claim_page_dir.mkdir(parents=True, exist_ok=True)
+                self._write_text(
+                    claim_page_dir / "index.html",
+                    self._render_claim_page(channel, claim, claim_page_dir),
+                )
+
+    def _channel_dir(self, channel: Channel) -> Path:
+        if channel.download_path:
+            return Path(channel.download_path) / channel.folder
+        return self.channels_root / channel.folder
+
+    def _resolve_action_file_path(
+        self, action: DownloadAction, version_dir: Path
+    ) -> Optional[Path]:
+        local_file_path = action.metadata.get("local_file_path")
+        if local_file_path:
+            path = Path(local_file_path)
+            if not path.is_absolute():
+                path = self.base_dir / path
+            if path.exists():
+                return path
+
+        existing_relpath = action.metadata.get("existing_file_relpath")
+        if existing_relpath:
+            path = self.base_dir / existing_relpath
+            if path.exists():
+                return path
+
+        source_name = action.metadata.get("source_name") or action.metadata.get("file_name")
+        if source_name:
+            path = version_dir / source_name
+            if path.exists():
+                return path
+
+        candidates = [
+            item
+            for item in version_dir.iterdir()
+            if item.is_file() and item.name not in {"metadata.json", "download.json", "checksums.txt"}
+        ] if version_dir.exists() else []
+        return candidates[0] if candidates else None
+
+    def _download_source_label(self, action: DownloadAction) -> str:
+        media_type = (action.metadata.get("source_media_type") or "").lower()
+        if media_type.startswith("video/") or media_type.startswith("audio/"):
+            return "odysee_stream"
+        return "odysee_download"
+
+    def _ensure_remote_asset(self, url: str, target_dir: Path, basename: str) -> Optional[Path]:
+        if not self.session:
+            return None
+
+        existing = self._existing_asset(target_dir, basename)
+        if existing:
+            return existing[0]
+
+        try:
+            response = self.session.get(url, timeout=60, stream=True)
+            response.raise_for_status()
+            with tempfile.NamedTemporaryFile(dir=target_dir, delete=False) as handle:
+                shutil.copyfileobj(response.raw, handle)
+                temp_path = Path(handle.name)
+
+            suffix = self._suffix_for_response(url, response.headers.get("Content-Type"), temp_path)
+            target_path = target_dir / f"{basename}{suffix}"
+            temp_path.replace(target_path)
+            return target_path
+        except Exception as exc:
+            logger.warning("Failed to fetch metadata asset %s: %s", url, exc)
+            temp_path = locals().get("temp_path")
+            if temp_path and Path(temp_path).exists():
+                Path(temp_path).unlink()
+            return None
+
+    def _suffix_for_url(self, url: str) -> str:
+        parsed = urlparse(url)
+        suffix = Path(parsed.path).suffix
+        if suffix:
+            return suffix
+        mime_guess, _ = mimetypes.guess_type(url)
+        return mimetypes.guess_extension(mime_guess or "") or ".bin"
+
+    def _suffix_for_response(
+        self, url: str, content_type: Optional[str], downloaded_path: Path
+    ) -> str:
+        suffix = self._suffix_for_content_type(content_type)
+        if suffix:
+            return suffix
+
+        suffix = self._suffix_for_image_bytes(downloaded_path)
+        if suffix:
+            return suffix
+
+        return self._suffix_for_url(url)
+
+    def _suffix_for_content_type(self, content_type: Optional[str]) -> Optional[str]:
+        if not content_type:
+            return None
+        mime = content_type.split(";", 1)[0].strip().lower()
+        if mime == "image/jpeg":
+            return ".jpg"
+        if mime == "image/png":
+            return ".png"
+        if mime == "image/webp":
+            return ".webp"
+        guessed = mimetypes.guess_extension(mime)
+        return guessed
+
+    def _suffix_for_image_bytes(self, path: Path) -> Optional[str]:
+        try:
+            header = path.read_bytes()[:16]
+        except OSError:
+            return None
+
+        if header.startswith(b"\x89PNG\r\n\x1a\n"):
+            return ".png"
+        if header.startswith(b"\xff\xd8\xff"):
+            return ".jpg"
+        if header.startswith(b"RIFF") and header[8:12] == b"WEBP":
+            return ".webp"
+        return None
+
+    def _existing_asset(self, directory: Path, basename: str) -> List[Path]:
+        normalized = []
+        for asset_path in sorted(directory.glob(f"{basename}.*")):
+            normalized.append(self._normalize_asset_extension(asset_path))
+        return normalized
+
+    def _normalize_asset_extension(self, path: Path) -> Path:
+        actual_suffix = self._suffix_for_image_bytes(path)
+        if not actual_suffix or path.suffix.lower() == actual_suffix:
+            return path
+
+        corrected_path = path.with_suffix(actual_suffix)
+        if corrected_path.exists():
+            path.unlink()
+            return corrected_path
+
+        path.rename(corrected_path)
+        return corrected_path
+
+    def _collect_channel_records(
+        self, channel_index: Optional[Dict[str, Channel]] = None
+    ) -> List[Dict[str, Any]]:
+        channel_dirs: Dict[Path, Path] = {}
+        if self.channels_root.exists():
+            for channel_dir in self.channels_root.iterdir():
+                if channel_dir.is_dir():
+                    channel_dirs[channel_dir.resolve()] = channel_dir
+
+        for channel in (channel_index or {}).values():
+            channel_dir = self._channel_dir(channel)
+            if channel_dir.exists():
+                channel_dirs[channel_dir.resolve()] = channel_dir
+
+        channels = []
+        for channel_dir in sorted(channel_dirs.values()):
+
+            channel_data = self._read_json(channel_dir / "channel.json") or {
+                "folder": channel_dir.name,
+                "channel_name": channel_dir.name,
+                "display_name": channel_dir.name,
+                "description": None,
+                "links": [],
+            }
+            channel_data["folder"] = channel_dir.name
+            channel_data["path"] = channel_dir
+            channel_data["profile_asset"] = self._find_asset(channel_dir, "channel-profile")
+            channel_data["cover_asset"] = self._find_asset(channel_dir, "channel-cover")
+            claims = self._collect_claim_records(channel_dir)
+            channel_data["claims"] = claims
+            channel_data["claim_count"] = len(claims)
+            channel_data["version_count"] = sum(len(claim["versions"]) for claim in claims)
+            channels.append(channel_data)
+
+        channels.sort(
+            key=lambda item: (item.get("display_name") or item.get("channel_name") or "").lower()
+        )
+        channels.sort(key=lambda item: item.get("last_scan") or "", reverse=True)
+        return channels
+
+    def _collect_claim_records(self, channel_dir: Path) -> List[Dict[str, Any]]:
+        claims_root = channel_dir / "claims"
+        claims = []
+        for claim_dir in sorted(claims_root.iterdir()) if claims_root.exists() else []:
+            if not claim_dir.is_dir():
+                continue
+
+            claim_data = self._read_json(claim_dir / "claim.json") or {
+                "name": claim_dir.name,
+                "title": claim_dir.name,
+                "description": None,
+                "links": [],
+            }
+            versions = self._collect_versions(claim_dir)
+            latest_version = versions[0] if versions else {}
+            claim_data["folder"] = claim_dir.name
+            claim_data["path"] = claim_dir
+            claim_data["thumbnail_asset"] = self._find_asset(claim_dir, "claim-thumbnail")
+            if not claim_data["thumbnail_asset"]:
+                claim_data["thumbnail_asset"] = self._extract_video_thumbnail(claim_dir, versions)
+            claim_data["thumbnail_url"] = claim_data.get("thumbnail_url") or latest_version.get(
+                "thumbnail_url"
+            )
+            claim_data["title"] = claim_data.get("title") or latest_version.get("title")
+            claim_data["description"] = claim_data.get("description") or latest_version.get(
+                "description"
+            )
+            claim_data["release_time"] = claim_data.get("release_time") or latest_version.get(
+                "release_time"
+            )
+            claim_data["versions"] = versions
+            claims.append(claim_data)
+
+        claims.sort(
+            key=lambda item: (
+                -self._numeric_sort_value(item.get("release_time")),
+                (item.get("title") or item.get("name") or "").lower(),
+            )
+        )
+        return claims
+
+    def _collect_versions(self, claim_dir: Path) -> List[Dict[str, Any]]:
+        versions_root = claim_dir / "versions"
+        versions = []
+        for version_dir in sorted(versions_root.iterdir()) if versions_root.exists() else []:
+            if not version_dir.is_dir():
+                continue
+
+            version_data = self._read_json(version_dir / "metadata.json") or {
+                "version_token": version_dir.name
+            }
+            version_data["path"] = version_dir
+            version_data["version_token"] = version_data.get("version_token") or version_dir.name
+            file_path = self._find_primary_file(version_dir)
+            version_data["file_path"] = file_path
+            versions.append(version_data)
+
+        versions.sort(
+            key=lambda item: (
+                -self._numeric_sort_value(item.get("release_time")),
+                item["version_token"],
+            )
+        )
+        return versions
+
+    def _extract_video_thumbnail(
+        self, claim_dir: Path, versions: List[Dict[str, Any]]
+    ) -> Optional[Path]:
+        for version in versions:
+            file_path = version.get("file_path")
+            if not file_path or not self._is_video_version(version, file_path):
+                continue
+
+            target_path = claim_dir / "claim-thumbnail.jpg"
+            if self._run_ffmpeg_thumbnail(file_path, target_path):
+                return target_path
+
+        return None
+
+    def _is_video_version(self, version: Dict[str, Any], file_path: Path) -> bool:
+        media_type = self._version_media_type(version, file_path).lower()
+        return media_type.startswith("video/")
+
+    def _run_ffmpeg_thumbnail(self, input_path: Path, output_path: Path) -> bool:
+        cmd = [
+            "ffmpeg",
+            "-y",
+            "-ss",
+            "1",
+            "-i",
+            str(input_path),
+            "-frames:v",
+            "1",
+            "-vf",
+            "scale='min(960,iw)':-2",
+            str(output_path),
+        ]
+        try:
+            subprocess.run(
+                cmd,
+                check=True,
+                stdout=subprocess.DEVNULL,
+                stderr=subprocess.DEVNULL,
+            )
+            return output_path.exists() and output_path.stat().st_size > 0
+        except (OSError, subprocess.CalledProcessError):
+            if output_path.exists():
+                output_path.unlink()
+            return False
+
+    def _find_primary_file(self, version_dir: Path) -> Optional[Path]:
+        metadata_name = {"metadata.json", "download.json", "checksums.txt"}
+        files = [item for item in version_dir.iterdir() if item.is_file() and item.name not in metadata_name]
+        return files[0] if files else None
+
+    def _find_asset(self, directory: Path, basename: str) -> Optional[Path]:
+        matches = self._existing_asset(directory, basename)
+        return matches[0] if matches else None
+
+    def _numeric_sort_value(self, value: Any) -> int:
+        """Convert mixed metadata values into a safe descending sort key."""
+        if value is None or value == "":
+            return 0
+        if isinstance(value, bool):
+            return int(value)
+        if isinstance(value, (int, float)):
+            return int(value)
+        if isinstance(value, str):
+            stripped = value.strip()
+            if not stripped:
+                return 0
+            try:
+                return int(stripped)
+            except ValueError:
+                try:
+                    return int(float(stripped))
+                except ValueError:
+                    logger.debug("Non-numeric release_time value in archive metadata: %r", value)
+                    return 0
+        return 0
+
+    def _render_index_page(self, channels: List[Dict[str, Any]]) -> str:
+        cards = []
+        for channel in channels:
+            title = channel.get("display_name") or channel.get("channel_name") or channel["folder"]
+            description = channel.get("description") or ""
+            profile = self._image_tag(
+                channel.get("profile_asset"),
+                self.site_root,
+                css_class="avatar",
+                mirror_key=f"channels/{channel['folder']}/channel-profile",
+            )
+            link = f"channels/{channel['folder']}/index.html"
+            cards.append(
+                f"""
+                <article class="card channel-card">
+                  <a class="card-link" href="{html.escape(link)}">
+                    {profile}
+                    <div class="card-body">
+                      <h2>{html.escape(title)}</h2>
+                      <p class="muted">{html.escape(channel.get('channel_name') or '')}</p>
+                      <p>{html.escape(self._truncate(description, 220))}</p>
+                      <p class="meta">{channel['claim_count']} claims | {channel['version_count']} versions</p>
+                    </div>
+                  </a>
+                </article>
+                """
+            )
+
+        body = "\n".join(cards) or "<p>No channels found.</p>"
+        return self._page(
+            title="LBRY Archive",
+            body=f"""
+            <header class="hero">
+              <div>
+                <p class="eyebrow">Offline Archive</p>
+                <h1>LBRY / Odysee Archive</h1>
+                <p class="lede">Browse downloaded channels, claims, metadata, and local files without needing the live site.</p>
+              </div>
+            </header>
+            <section class="grid">{body}</section>
+            """,
+            root=self.site_root,
+        )
+
+    def _render_channel_page(self, channel: Dict[str, Any], page_dir: Path) -> str:
+        title = channel.get("display_name") or channel.get("channel_name") or channel["folder"]
+        cover = self._image_tag(
+            channel.get("cover_asset"),
+            page_dir,
+            css_class="cover",
+            mirror_key=f"channels/{channel['folder']}/channel-cover",
+        )
+        profile = self._image_tag(
+            channel.get("profile_asset"),
+            page_dir,
+            css_class="avatar large",
+            mirror_key=f"channels/{channel['folder']}/channel-profile",
+        )
+        claims_html = []
+        for claim in channel["claims"]:
+            claim_title = claim.get("title") or claim.get("name") or claim["folder"]
+            thumb = self._image_tag(
+                claim.get("thumbnail_asset"),
+                page_dir,
+                css_class="thumb",
+                fallback_url=claim.get("thumbnail_url"),
+                mirror_key=f"channels/{channel['folder']}/claims/{claim['folder']}/claim-thumbnail",
+            )
+            link = f"claims/{claim['folder']}/index.html"
+            claims_html.append(
+                f"""
+                <article class="card claim-card">
+                  <a class="card-link" href="{html.escape(link)}">
+                    {thumb}
+                    <div class="card-body">
+                      <h2>{html.escape(claim_title)}</h2>
+                      <p>{html.escape(self._truncate(claim.get('description') or '', 180))}</p>
+                      <p class="meta">{len(claim['versions'])} version(s)</p>
+                    </div>
+                  </a>
+                </article>
+                """
+            )
+        links = self._render_links(channel.get("links", []))
+        return self._page(
+            title=title,
+            body=f"""
+            <nav class="breadcrumbs"><a href="../../index.html">Archive</a></nav>
+            {cover}
+            <header class="channel-header">
+              {profile}
+              <div>
+                <p class="eyebrow">Channel</p>
+                <h1>{html.escape(title)}</h1>
+                <p class="muted">{html.escape(channel.get('channel_name') or '')}</p>
+                <p>{html.escape(channel.get('description') or '')}</p>
+                {links}
+              </div>
+            </header>
+            <section class="grid">{''.join(claims_html) or '<p>No claims found.</p>'}</section>
+            """,
+            root=page_dir,
+        )
+
+    def _render_claim_page(self, channel: Dict[str, Any], claim: Dict[str, Any], page_dir: Path) -> str:
+        title = claim.get("title") or claim.get("name") or claim["folder"]
+        thumb = self._image_tag(
+            claim.get("thumbnail_asset"),
+            page_dir,
+            css_class="hero-thumb",
+            fallback_url=claim.get("thumbnail_url"),
+            mirror_key=f"channels/{channel['folder']}/claims/{claim['folder']}/claim-thumbnail",
+        )
+        versions = []
+        for version in claim["versions"]:
+            file_link = ""
+            media_preview = ""
+            if version.get("file_path"):
+                href = self._rel_href(page_dir, version["file_path"])
+                file_name = version["file_path"].name
+                file_link = f'<p><a href="{html.escape(href)}">Open local file: {html.escape(file_name)}</a></p>'
+                media_preview = self._render_version_preview(version, page_dir, href)
+            versions.append(
+                f"""
+                <article class="version">
+                  <h2>{html.escape(version.get('version_token') or 'version')}</h2>
+                  <p class="meta">{html.escape(version.get('source_media_type') or version.get('stream_type') or '')}</p>
+                  <p>{html.escape(version.get('description') or '')}</p>
+                  {media_preview}
+                  {file_link}
+                </article>
+                """
+            )
+        links = self._render_links(claim.get("links", []))
+        return self._page(
+            title=title,
+            body=f"""
+            <nav class="breadcrumbs">
+              <a href="../../../../index.html">Archive</a>
+              <a href="../../index.html">{html.escape(channel.get('display_name') or channel.get('channel_name') or channel['folder'])}</a>
+            </nav>
+            <header class="claim-header">
+              {thumb}
+              <div>
+                <p class="eyebrow">Claim</p>
+                <h1>{html.escape(title)}</h1>
+                <p>{html.escape(claim.get('description') or '')}</p>
+                {links}
+              </div>
+            </header>
+            <section class="versions">{''.join(versions) or '<p>No versions found.</p>'}</section>
+            """,
+            root=page_dir,
+        )
+
+    def _image_tag(
+        self,
+        image_path: Optional[Path],
+        page_dir: Path,
+        css_class: str,
+        fallback_url: Optional[str] = None,
+        mirror_key: Optional[str] = None,
+    ) -> str:
+        if image_path:
+            site_path = self._mirror_site_asset(image_path, mirror_key)
+            href = self._rel_href(page_dir, site_path)
+        elif fallback_url:
+            href = fallback_url
+        else:
+            return ""
+        return f'<img class="{html.escape(css_class)}" src="{html.escape(href)}" alt="" loading="lazy">'
+
+    def _render_version_preview(self, version: Dict[str, Any], page_dir: Path, href: str) -> str:
+        file_path = version.get("file_path")
+        if not file_path:
+            return ""
+
+        media_type = self._version_media_type(version, file_path)
+        if media_type.startswith("video/"):
+            poster = self._poster_attribute(version, page_dir)
+            return (
+                f'<video class="media-player" controls preload="metadata"{poster}>'
+                f'<source src="{html.escape(href)}" type="{html.escape(media_type)}">'
+                "Your browser does not support embedded video playback."
+                "</video>"
+            )
+
+        if media_type.startswith("audio/"):
+            return (
+                f'<audio class="audio-player" controls preload="metadata">'
+                f'<source src="{html.escape(href)}" type="{html.escape(media_type)}">'
+                "Your browser does not support embedded audio playback."
+                "</audio>"
+            )
+
+        return ""
+
+    def _version_media_type(self, version: Dict[str, Any], file_path: Path) -> str:
+        media_type = version.get("source_media_type")
+        if media_type:
+            return str(media_type)
+        guessed, _ = mimetypes.guess_type(file_path.name)
+        return guessed or ""
+
+    def _poster_attribute(self, version: Dict[str, Any], page_dir: Path) -> str:
+        claim_dir = Path(version["path"]).parent.parent
+        thumbnail_asset = self._find_asset(claim_dir, "claim-thumbnail")
+        if thumbnail_asset:
+            claim_folder = claim_dir.name
+            channel_folder = claim_dir.parent.parent.name
+            site_path = self._mirror_site_asset(
+                thumbnail_asset,
+                f"channels/{channel_folder}/claims/{claim_folder}/claim-thumbnail",
+            )
+            return f' poster="{html.escape(self._rel_href(page_dir, site_path))}"'
+        thumbnail_url = version.get("thumbnail_url")
+        if thumbnail_url:
+            return f' poster="{html.escape(thumbnail_url)}"'
+        return ""
+
+    def _mirror_site_asset(self, source_path: Path, mirror_key: Optional[str] = None) -> Path:
+        source = Path(source_path)
+        if mirror_key:
+            target = self.site_root / "_assets" / f"{mirror_key}{source.suffix.lower()}"
+        else:
+            target = self.site_root / "_assets" / source.name
+        target.parent.mkdir(parents=True, exist_ok=True)
+        if not target.exists():
+            shutil.copy2(source, target)
+        return target
+
+    def _render_links(self, links: List[Dict[str, str]]) -> str:
+        if not links:
+            return ""
+        rendered = []
+        for link in links:
+            label = link.get("label") or link.get("url") or "Link"
+            url = link.get("url")
+            if not url:
+                continue
+            rendered.append(
+                f'<a class="pill" href="{html.escape(url)}">{html.escape(label)}</a>'
+            )
+        if not rendered:
+            return ""
+        return f'<div class="pill-row">{"".join(rendered)}</div>'
+
+    def _page(self, *, title: str, body: str, root: Path) -> str:
+        stylesheet = self._rel_href(root, self.site_root / "assets" / "style.css")
+        return f"""<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>{html.escape(title)}</title>
+  <link rel="stylesheet" href="{html.escape(stylesheet)}">
+</head>
+<body>
+  <main class="shell">
+    {body}
+  </main>
+</body>
+</html>
+"""
+
+    def _rel_href(self, page_dir: Path, target: Path) -> str:
+        return os.path.relpath(Path(target).resolve(), start=Path(page_dir).resolve())
+
+    def _path_label(self, path: Path) -> str:
+        try:
+            return str(path.relative_to(self.base_dir))
+        except ValueError:
+            return str(path)
+
+    def _write_json(self, path: Path, payload: Dict[str, Any]) -> None:
+        path.parent.mkdir(parents=True, exist_ok=True)
+        with open(path, "w", encoding="utf-8") as handle:
+            json.dump(payload, handle, indent=2, sort_keys=True)
+
+    def _read_json(self, path: Path) -> Optional[Dict[str, Any]]:
+        if not path.exists():
+            return None
+        with open(path, "r", encoding="utf-8") as handle:
+            return json.load(handle)
+
+    def _write_text(self, path: Path, content: str) -> None:
+        path.parent.mkdir(parents=True, exist_ok=True)
+        with open(path, "w", encoding="utf-8") as handle:
+            handle.write(content)
+
+    def _truncate(self, text: str, limit: int) -> str:
+        if len(text) <= limit:
+            return text
+        return text[: limit - 3].rstrip() + "..."
+
+    def _site_css(self) -> str:
+        return """
+:root {
+  --bg: #f5f1e8;
+  --ink: #1d1b19;
+  --muted: #6b6257;
+  --card: #fffaf1;
+  --line: #d9cfbf;
+  --accent: #9c4a1a;
+}
+* { box-sizing: border-box; }
+body {
+  margin: 0;
+  background:
+    radial-gradient(circle at top, rgba(156,74,26,.14), transparent 35%),
+    linear-gradient(180deg, #f8f4ec 0%, var(--bg) 100%);
+  color: var(--ink);
+  font: 16px/1.5 Georgia, "Times New Roman", serif;
+}
+a { color: var(--accent); text-decoration: none; }
+a:hover { text-decoration: underline; }
+.shell { max-width: 1180px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
+.hero, .channel-header, .claim-header {
+  display: grid;
+  gap: 1rem;
+  align-items: start;
+  margin-bottom: 2rem;
+}
+.hero {
+  min-height: 12rem;
+  border: 1px solid var(--line);
+  background: rgba(255,250,241,.8);
+  padding: 1.5rem;
+}
+.eyebrow, .meta, .muted, .breadcrumbs { color: var(--muted); }
+.breadcrumbs { margin-bottom: 1rem; display: flex; gap: .75rem; flex-wrap: wrap; }
+.grid {
+  display: grid;
+  gap: 1rem;
+  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
+}
+.card, .version {
+  border: 1px solid var(--line);
+  background: var(--card);
+}
+.card-link { display: block; color: inherit; height: 100%; }
+.card-body { padding: 1rem; }
+.avatar {
+  width: 72px;
+  height: 72px;
+  object-fit: cover;
+  border-radius: 999px;
+  border: 1px solid var(--line);
+  margin: 1rem 1rem 0;
+}
+.avatar.large { width: 112px; height: 112px; margin: 0; }
+.cover {
+  width: 100%;
+  max-height: 240px;
+  object-fit: cover;
+  border: 1px solid var(--line);
+  margin-bottom: 1rem;
+}
+.thumb, .hero-thumb {
+  width: 100%;
+  aspect-ratio: 16 / 9;
+  object-fit: cover;
+  border-bottom: 1px solid var(--line);
+}
+.hero-thumb { max-width: 420px; border: 1px solid var(--line); }
+.pill-row {
+  display: flex;
+  gap: .5rem;
+  flex-wrap: wrap;
+  margin-top: .75rem;
+}
+.pill {
+  display: inline-block;
+  border: 1px solid var(--line);
+  padding: .35rem .65rem;
+  border-radius: 999px;
+  background: #fff;
+}
+.versions {
+  display: grid;
+  gap: 1rem;
+}
+.version { padding: 1rem; }
+.media-player, .audio-player {
+  width: 100%;
+  margin: .75rem 0;
+}
+.media-player {
+  max-width: 100%;
+  aspect-ratio: 16 / 9;
+  background: #000;
+}
+@media (min-width: 860px) {
+  .channel-header, .claim-header {
+    grid-template-columns: auto 1fr;
+  }
+}
+"""

pyproject.toml

@@ -55,4 +55,5 @@ py-modules = [
     "state_db",
     "planner",
     "downloader",
+    "offline_site",
 ]

tests/test_config.py

@@ -149,6 +149,23 @@ channels:
         assert config.general.direct_retry_backoff_seconds == 1.5
         assert config.general.direct_auto_fallback_to_p2p is True
 
+    def test_offline_site_defaults_to_base_dir_site(self, tmp_path):
+        config_file = tmp_path / "config.yaml"
+        config_file.write_text("""
+general:
+  base_dir: "~/test-archive"
+
+channels:
+  - input: "https://odysee.com/@Test:1"
+    enabled: true
+""")
+
+        config = load_config(str(config_file))
+
+        assert config.general.build_offline_site is True
+        assert config.general.fetch_missing_metadata_assets is True
+        assert config.general.offline_site_dir.endswith("/test-archive/site")
+
     def test_invalid_direct_retry_backoff(self, tmp_path):
         config_file = tmp_path / "config.yaml"
         config_file.write_text("""

tests/test_offline_site.py

@@ -0,0 +1,327 @@
+"""Tests for offline site generation and metadata backfill."""
+
+import json
+
+from models import Channel, Config, DownloadAction
+from offline_site import ArchiveSiteManager
+
+
+WEBP_STUB = b"RIFF\x1a\x00\x00\x00WEBPVP8 " + b"\x00" * 10
+
+
+def test_offline_site_builds_from_archive_metadata(tmp_path):
+    config = Config()
+    config.general.base_dir = str(tmp_path)
+    config.general.offline_site_dir = str(tmp_path / "site")
+    config.general.fetch_missing_metadata_assets = False
+
+    manager = ArchiveSiteManager(config, tmp_path)
+
+    channel = Channel(
+        input="https://odysee.com/@example:1",
+        normalized_uri="lbry://@example#1",
+        channel_claim_id="chan123",
+        channel_name="@example",
+        folder="example__chan123",
+        display_name="Example Channel",
+        description="Channel description",
+        links=[{"label": "Website", "url": "https://example.com"}],
+    )
+    manager.ensure_channel_artifacts(channel)
+
+    version_dir = (
+        tmp_path
+        / "channels"
+        / channel.folder
+        / "claims"
+        / "my-claim__claim123"
+        / "versions"
+        / "sd_abc123"
+    )
+    version_dir.mkdir(parents=True)
+    file_path = version_dir / "video.mp4"
+    file_path.write_bytes(b"video-data")
+    thumbnail_path = version_dir.parent.parent / "claim-thumbnail.jpg"
+    thumbnail_path.write_bytes(b"thumb")
+
+    action = DownloadAction(
+        claim_id="claim123",
+        claim_name="my-claim",
+        channel_claim_id=channel.channel_claim_id,
+        version_token="sd_abc123",
+        action="skip_existing",
+        uri="lbry://@example#1/my-claim#claim123",
+        target_dir=str(version_dir),
+        metadata={
+            "title": "My Claim",
+            "description": "Claim description",
+            "source_media_type": "video/mp4",
+            "stream_type": "video",
+            "source_name": "video.mp4",
+            "local_file_path": str(file_path.relative_to(tmp_path)),
+            "thumbnail_url": "https://example.com/thumb.jpg",
+            "release_time": 1234567890,
+            "links": [
+                {
+                    "label": "External",
+                    "url": "https://odysee.com/@example:1/my-claim",
+                }
+            ],
+        },
+    )
+    manager.ensure_claim_artifacts(channel, action)
+    manager.build_site(channel_index={channel.channel_claim_id: channel})
+
+    channel_json = tmp_path / "channels" / channel.folder / "channel.json"
+    claim_json = version_dir.parent.parent / "claim.json"
+    metadata_json = version_dir / "metadata.json"
+    site_index = tmp_path / "site" / "index.html"
+    channel_page = tmp_path / "site" / "channels" / channel.folder / "index.html"
+    claim_page = (
+        tmp_path
+        / "site"
+        / "channels"
+        / channel.folder
+        / "claims"
+        / "my-claim__claim123"
+        / "index.html"
+    )
+
+    assert channel_json.exists()
+    assert claim_json.exists()
+    assert metadata_json.exists()
+    assert site_index.exists()
+    assert channel_page.exists()
+    assert claim_page.exists()
+
+    channel_payload = json.loads(channel_json.read_text())
+    claim_payload = json.loads(claim_json.read_text())
+    version_payload = json.loads(metadata_json.read_text())
+
+    assert channel_payload["display_name"] == "Example Channel"
+    assert claim_payload["title"] == "My Claim"
+    assert version_payload["file_name"] == "video.mp4"
+
+    assert "Example Channel" in site_index.read_text()
+    channel_page_html = channel_page.read_text()
+    claim_page_html = claim_page.read_text()
+
+    assert "My Claim" in channel_page_html
+    assert 'class="thumb"' in channel_page_html
+    assert "Open local file: video.mp4" in claim_page_html
+    assert '<video class="media-player" controls preload="metadata"' in claim_page_html
+    assert 'poster="../../../../_assets/channels/example__chan123/claims/my-claim__claim123/claim-thumbnail.jpg"' in claim_page_html
+    assert '<source src="../../../../../channels/example__chan123/claims/my-claim__claim123/versions/sd_abc123/video.mp4" type="video/mp4">' in claim_page_html
+
+
+def test_offline_site_handles_string_release_time(tmp_path):
+    config = Config()
+    config.general.base_dir = str(tmp_path)
+    config.general.offline_site_dir = str(tmp_path / "site")
+    config.general.fetch_missing_metadata_assets = False
+
+    manager = ArchiveSiteManager(config, tmp_path)
+
+    channel_dir = tmp_path / "channels" / "example__chan123"
+    claim_dir = channel_dir / "claims" / "string-time__claim123"
+    version_dir = claim_dir / "versions" / "sd_abc123"
+    version_dir.mkdir(parents=True)
+
+    (channel_dir / "channel.json").write_text(
+        json.dumps({"display_name": "Example", "channel_name": "@example"})
+    )
+    (claim_dir / "claim.json").write_text(
+        json.dumps({"title": "String Time Claim", "release_time": "1712100000"})
+    )
+    (version_dir / "metadata.json").write_text(
+        json.dumps({"version_token": "sd_abc123", "release_time": "1712100000"})
+    )
+    (version_dir / "file.bin").write_bytes(b"x")
+
+    manager.build_site()
+
+    assert (tmp_path / "site" / "index.html").exists()
+
+
+def test_channel_page_uses_thumbnail_from_latest_version_when_claim_json_lacks_it(tmp_path):
+    config = Config()
+    config.general.base_dir = str(tmp_path)
+    config.general.offline_site_dir = str(tmp_path / "site")
+    config.general.fetch_missing_metadata_assets = False
+
+    manager = ArchiveSiteManager(config, tmp_path)
+
+    channel_dir = tmp_path / "channels" / "example__chan123"
+    claim_dir = channel_dir / "claims" / "video-claim__claim123"
+    version_dir = claim_dir / "versions" / "sd_abc123"
+    version_dir.mkdir(parents=True)
+
+    (channel_dir / "channel.json").write_text(
+        json.dumps({"display_name": "Example", "channel_name": "@example"})
+    )
+    (claim_dir / "claim.json").write_text(
+        json.dumps({"title": "Video Claim", "description": "Claim-level description"})
+    )
+    (version_dir / "metadata.json").write_text(
+        json.dumps(
+            {
+                "version_token": "sd_abc123",
+                "title": "Video Claim",
+                "description": "Version description",
+                "thumbnail_url": "https://example.com/version-thumb.jpg",
+                "release_time": 1712100000,
+                "source_media_type": "video/mp4",
+            }
+        )
+    )
+    (version_dir / "video.mp4").write_bytes(b"x")
+
+    manager.build_site()
+
+    channel_page = tmp_path / "site" / "channels" / "example__chan123" / "index.html"
+    claim_page = (
+        tmp_path
+        / "site"
+        / "channels"
+        / "example__chan123"
+        / "claims"
+        / "video-claim__claim123"
+        / "index.html"
+    )
+
+    channel_page_html = channel_page.read_text()
+    claim_page_html = claim_page.read_text()
+
+    assert 'class="thumb" src="https://example.com/version-thumb.jpg"' in channel_page_html
+    assert 'class="hero-thumb" src="https://example.com/version-thumb.jpg"' in claim_page_html
+    assert 'poster="https://example.com/version-thumb.jpg"' in claim_page_html
+
+
+def test_build_site_normalizes_mislabeled_thumbnail_extensions(tmp_path):
+    config = Config()
+    config.general.base_dir = str(tmp_path)
+    config.general.offline_site_dir = str(tmp_path / "site")
+    config.general.fetch_missing_metadata_assets = False
+
+    manager = ArchiveSiteManager(config, tmp_path)
+
+    channel_dir = tmp_path / "channels" / "example__chan123"
+    claim_dir = channel_dir / "claims" / "video-claim__claim123"
+    version_dir = claim_dir / "versions" / "sd_abc123"
+    version_dir.mkdir(parents=True)
+
+    (channel_dir / "channel.json").write_text(
+        json.dumps({"display_name": "Example", "channel_name": "@example"})
+    )
+    (claim_dir / "claim.json").write_text(
+        json.dumps({"title": "Video Claim", "thumbnail_url": "https://example.com/thumb.jpg"})
+    )
+    (version_dir / "metadata.json").write_text(json.dumps({"version_token": "sd_abc123"}))
+    (version_dir / "video.mp4").write_bytes(b"x")
+
+    mislabeled = claim_dir / "claim-thumbnail.jpg"
+    mislabeled.write_bytes(WEBP_STUB)
+
+    manager.build_site()
+
+    corrected = claim_dir / "claim-thumbnail.webp"
+    channel_page = tmp_path / "site" / "channels" / "example__chan123" / "index.html"
+    claim_page = (
+        tmp_path
+        / "site"
+        / "channels"
+        / "example__chan123"
+        / "claims"
+        / "video-claim__claim123"
+        / "index.html"
+    )
+
+    assert not mislabeled.exists()
+    assert corrected.exists()
+    assert 'claim-thumbnail.webp' in channel_page.read_text()
+    assert 'claim-thumbnail.webp' in claim_page.read_text()
+
+
+def test_build_site_mirrors_thumbnail_assets_into_site_tree(tmp_path):
+    config = Config()
+    config.general.base_dir = str(tmp_path)
+    config.general.offline_site_dir = str(tmp_path / "site")
+    config.general.fetch_missing_metadata_assets = False
+
+    manager = ArchiveSiteManager(config, tmp_path)
+
+    channel_dir = tmp_path / "channels" / "example__chan123"
+    claim_dir = channel_dir / "claims" / "video-claim__claim123"
+    version_dir = claim_dir / "versions" / "sd_abc123"
+    version_dir.mkdir(parents=True)
+
+    (channel_dir / "channel.json").write_text(
+        json.dumps({"display_name": "Example", "channel_name": "@example"})
+    )
+    (claim_dir / "claim.json").write_text(json.dumps({"title": "Video Claim"}))
+    (version_dir / "metadata.json").write_text(json.dumps({"version_token": "sd_abc123"}))
+    (version_dir / "video.mp4").write_bytes(b"x")
+    (claim_dir / "claim-thumbnail.webp").write_bytes(WEBP_STUB)
+
+    manager.build_site()
+
+    mirrored = (
+        tmp_path
+        / "site"
+        / "_assets"
+        / "channels"
+        / "example__chan123"
+        / "claims"
+        / "video-claim__claim123"
+        / "claim-thumbnail.webp"
+    )
+    channel_page = tmp_path / "site" / "channels" / "example__chan123" / "index.html"
+
+    assert mirrored.exists()
+    assert '_assets/channels/example__chan123/claims/video-claim__claim123/claim-thumbnail.webp' in channel_page.read_text()
+
+
+def test_build_site_extracts_video_thumbnail_when_metadata_thumbnail_is_missing(
+    tmp_path, monkeypatch
+):
+    config = Config()
+    config.general.base_dir = str(tmp_path)
+    config.general.offline_site_dir = str(tmp_path / "site")
+    config.general.fetch_missing_metadata_assets = False
+
+    manager = ArchiveSiteManager(config, tmp_path)
+
+    channel_dir = tmp_path / "channels" / "example__chan123"
+    claim_dir = channel_dir / "claims" / "video-claim__claim123"
+    version_dir = claim_dir / "versions" / "sd_abc123"
+    version_dir.mkdir(parents=True)
+
+    (channel_dir / "channel.json").write_text(
+        json.dumps({"display_name": "Example", "channel_name": "@example"})
+    )
+    (version_dir / "metadata.json").write_text(
+        json.dumps(
+            {
+                "version_token": "sd_abc123",
+                "title": "Video Claim",
+                "description": "Video with no upstream thumbnail metadata",
+                "source_media_type": "video/mp4",
+                "release_time": 1712100000,
+            }
+        )
+    )
+    (version_dir / "video.mp4").write_bytes(b"x")
+
+    def fake_extract(input_path, output_path):
+        output_path.write_bytes(b"jpeg-data")
+        return True
+
+    monkeypatch.setattr(manager, "_run_ffmpeg_thumbnail", fake_extract)
+
+    manager.build_site()
+
+    channel_page = tmp_path / "site" / "channels" / "example__chan123" / "index.html"
+    extracted_thumb = claim_dir / "claim-thumbnail.jpg"
+
+    assert extracted_thumb.exists()
+    assert '_assets/channels/example__chan123/claims/video-claim__claim123/claim-thumbnail.jpg' in channel_page.read_text()

utils.py

@@ -3,6 +3,7 @@
 import hashlib
 import json
 import re
+from urllib.parse import urlparse
 from datetime import datetime, timezone
 from pathlib import Path
 from typing import Any, Dict, Optional
@@ -223,6 +224,13 @@ def extract_channel_info(resolved_data: Dict[str, Any]) -> Dict[str, Any]:
         "value_type": claim.get("value_type"),
         "title": value.get("title"),
         "description": value.get("description"),
+        "thumbnail_url": extract_asset_url(value.get("thumbnail")),
+        "cover_url": extract_asset_url(value.get("cover")),
+        "website_url": value.get("website_url"),
+        "email": value.get("email"),
+        "tags": value.get("tags", []),
+        "languages": value.get("languages", []),
+        "links": extract_links(value),
     }
 
 
@@ -264,12 +272,14 @@ def extract_claim_metadata(claim_data: Dict[str, Any]) -> Dict[str, Any]:
         "release_time": value.get("release_time"),
         "title": value.get("title"),
         "description": value.get("description"),
+        "thumbnail_url": extract_asset_url(value.get("thumbnail")),
         "sd_hash": source.get("sd_hash"),
         "stream_hash": claim.get("stream_hash"),
         "txid": claim.get("txid"),
         "nout": claim.get("nout"),
         "tags": value.get("tags", []),
         "languages": value.get("languages", []),
+        "links": extract_links(value),
         "fee": fee,
         "source_name": source.get("name"),
         "source_media_type": source_media_type,
@@ -277,6 +287,65 @@ def extract_claim_metadata(claim_data: Dict[str, Any]) -> Dict[str, Any]:
     }
 
 
+def extract_asset_url(asset_data: Any) -> Optional[str]:
+    """Extract a URL from a thumbnail/cover field when present."""
+    if isinstance(asset_data, str):
+        return asset_data
+    if isinstance(asset_data, dict):
+        for key in ("url", "uri", "src", "href"):
+            value = asset_data.get(key)
+            if isinstance(value, str) and value:
+                return value
+    return None
+
+
+def extract_links(value: Dict[str, Any]) -> list[Dict[str, str]]:
+    """Extract any presentation links from a claim value."""
+    links = []
+
+    website_url = value.get("website_url")
+    if isinstance(website_url, str) and website_url:
+        links.append({"label": "Website", "url": website_url})
+
+    for key in ("locations", "links"):
+        raw_items = value.get(key)
+        if isinstance(raw_items, dict):
+            raw_items = [raw_items]
+        if not isinstance(raw_items, list):
+            continue
+
+        for item in raw_items:
+            if not isinstance(item, dict):
+                continue
+            url = None
+            for field in ("url", "uri", "href"):
+                candidate = item.get(field)
+                if isinstance(candidate, str) and candidate:
+                    url = candidate
+                    break
+            if not url:
+                continue
+            label = item.get("label") or item.get("title") or item.get("name") or _host_label(url)
+            links.append({"label": str(label), "url": url})
+
+    deduped = []
+    seen = set()
+    for link in links:
+        key = (link["label"], link["url"])
+        if key in seen:
+            continue
+        seen.add(key)
+        deduped.append(link)
+    return deduped
+
+
+def _host_label(url: str) -> str:
+    parsed = urlparse(url)
+    if parsed.netloc:
+        return parsed.netloc
+    return "Link"
+
+
 def format_summary(
     channels_scanned: int,
     claims_examined: int,