#!/usr/bin/env bash
# scripts/add-tracker.sh — register a tracker with Prowlarr via API.
#
# Usage:
#   PROWLARR_API_KEY=xxx ./add-tracker.sh <indexer-name> <indexer-id>
#
# Where <indexer-id> is Prowlarr's internal ID for the indexer type (look it
# up via `curl /api/v1/indexer/schema` — see "Discovering indexer IDs" below).
#
# This script POSTs a minimal indexer config to Prowlarr. For trackers that
# need cookies / passkeys / 2FA, finish the setup in the Prowlarr webui
# afterwards.
#
# Pre-reqs:
#   - Prowlarr container up.
#   - PROWLARR_API_KEY exported (Prowlarr → Settings → General → Security).
#   - PROWLARR_URL defaults to http://127.0.0.1:9696.

set -euo pipefail

NAME="${1:-}"
INDEXER_ID="${2:-}"
PROWLARR_URL="${PROWLARR_URL:-http://127.0.0.1:9696}"
PROWLARR_API_KEY="${PROWLARR_API_KEY:-}"

if [ -z "$NAME" ] || [ -z "$INDEXER_ID" ] || [ -z "$PROWLARR_API_KEY" ]; then
    cat <<EOF >&2
Usage: PROWLARR_API_KEY=xxx $0 <indexer-name> <indexer-id>

Env:
  PROWLARR_URL      default: http://127.0.0.1:9696
  PROWLARR_API_KEY  required — Prowlarr → Settings → General → Security.

Discovering indexer IDs:
  curl -s "\$PROWLARR_URL/api/v1/indexer/schema" \\
       -H "X-Api-Key: \$PROWLARR_API_KEY" | \\
       jq -r '.[] | "\\(.implementation)\\t\\(.implementationName)"' | sort -u

  Find the row matching your tracker, then look up its integer id via the
  full schema entry. Many private trackers use the "Cardigann" implementation
  with a YAML config — see Prowlarr docs for the full attribute list.
EOF
    exit 2
fi

echo "Querying schema for '$INDEXER_ID'..."
SCHEMA_JSON="$(curl -fsS \
    -H "X-Api-Key: $PROWLARR_API_KEY" \
    "$PROWLARR_URL/api/v1/indexer/schema" \
  | jq --arg id "$INDEXER_ID" '.[] | select(.id == ($id | tonumber))')"

if [ -z "$SCHEMA_JSON" ]; then
    echo "No schema entry for indexer id=$INDEXER_ID" >&2
    exit 1
fi

# Override name with the user-provided one and keep all other fields as-is.
PAYLOAD="$(jq --arg name "$NAME" '. + {name: $name, enable: true}' <<<"$SCHEMA_JSON")"

echo "POSTing indexer config..."
RESPONSE="$(curl -fsS -X POST \
    -H "X-Api-Key: $PROWLARR_API_KEY" \
    -H "Content-Type: application/json" \
    -d "$PAYLOAD" \
    "$PROWLARR_URL/api/v1/indexer")"

NEW_ID="$(jq -r '.id' <<<"$RESPONSE")"
echo "OK — indexer '$NAME' added with id=$NEW_ID"
echo
echo "Next steps:"
echo "  1. Open Prowlarr → Indexers → $NAME → fill in cookies/passkey/API key."
echo "  2. Test indexer (Settings → Indexers → Test)."
echo "  3. Add a row to docs/trackers.md with IP-pinning + ratio notes."
echo "  4. Push to Sonarr/Radarr via Prowlarr's Apps → Sync."