---
apiVersion: v1
kind: ConfigMap
metadata:
  name: zim-torrent-sync-script
  namespace: kiwix
data:
  sync-zim-torrents.sh: |
    #!/bin/bash
    # Sync ZIM torrents from kiwix ConfigMap to Transmission
    # Runs as a sidecar in the kiwix deployment
    set -euo pipefail

    TORRENT_LIST="${TORRENT_LIST:-/config/torrents.txt}"
    TRANSMISSION_HOST="${TRANSMISSION_HOST:-transmission.torrent.svc.cluster.local}"
    TRANSMISSION_PORT="${TRANSMISSION_PORT:-9091}"

    echo "Syncing ZIM torrents to transmission at ${TRANSMISSION_HOST}:${TRANSMISSION_PORT}"

    # Wait for transmission to be ready
    # Transmission RPC returns 409 on first request (to provide session ID), which is fine
    echo "Waiting for Transmission RPC..."
    max_attempts=30
    attempt=0
    until curl -s -o /dev/null -w "%{http_code}" "http://${TRANSMISSION_HOST}:${TRANSMISSION_PORT}/transmission/rpc" | grep -qE "^(200|409)$"; do
        attempt=$((attempt + 1))
        if [[ $attempt -ge $max_attempts ]]; then
            echo "Transmission not ready after ${max_attempts} attempts, will retry next cycle"
            exit 0  # Don't fail, just skip this sync
        fi
        sleep 10
    done
    echo "Transmission is ready"

    # Get current torrents from transmission
    # transmission-remote returns header + data + footer, extract just torrent names
    current=$(transmission-remote "${TRANSMISSION_HOST}:${TRANSMISSION_PORT}" -l 2>/dev/null | \
              tail -n +2 | head -n -1 | awk '{print $NF}' || true)

    added=0
    skipped=0

    while IFS= read -r url || [[ -n "$url" ]]; do
        # Skip empty lines and comments
        [[ -z "$url" || "$url" =~ ^[[:space:]]*# ]] && continue
        # Trim whitespace
        url=$(echo "$url" | xargs)
        [[ -z "$url" ]] && continue

        # Extract base name from URL (remove .torrent extension)
        basename=$(basename "$url" .torrent)
        # Also try without .zim in case transmission reports it differently
        basename_no_zim="${basename%.zim}"

        # Check if already in transmission
        if echo "$current" | grep -qF "$basename_no_zim"; then
            ((skipped++)) || true
        else
            if transmission-remote "${TRANSMISSION_HOST}:${TRANSMISSION_PORT}" -a "$url" 2>/dev/null; then
                echo "Added: $basename"
                ((added++)) || true
            else
                echo "Warning: Failed to add $url" >&2
            fi
        fi
    done < "$TORRENT_LIST"

    echo "Sync complete: $added added, $skipped already present"