#!/usr/bin/env bash
# Replace only launcher installer + latest.yml attachments on a Gitea release.
# Does NOT delete Wow.exe, MPQs, or patch-manifest — use this to publish a
# "bridge" build (e.g. 1.0.13 with new baked Gitea URL) on a legacy host while
# keeping game assets already on that release.
#
# Usage:
#   export GITEA_BASE_URL=http://legacy-host:port   # or https://...
#   export GITEA_TOKEN=gta_...
#   export GITEA_OWNER=Dawnsorrow
#   export GITEA_REPO=Fractured-Distro
#   ./gitea-replace-launcher-only.sh /path/to/electron/dist latest
#
set -euo pipefail

SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
# shellcheck source=release-sync-filters.sh
. "$SCRIPT_DIR/release-sync-filters.sh"

DIST_DIR="${1:?first arg: electron-builder dist directory (contains .exe / .AppImage / latest*.yml)}"
TAG="${2:?second arg: release tag (e.g. latest)}"

: "${GITEA_BASE_URL:?Set GITEA_BASE_URL}"
: "${GITEA_TOKEN:?Set GITEA_TOKEN}"
: "${GITEA_OWNER:?Set GITEA_OWNER}"
: "${GITEA_REPO:?Set GITEA_REPO}"

BASE="${GITEA_BASE_URL%/}"
API="$BASE/api/v1"
AUTH_H=(-H "Authorization: token ${GITEA_TOKEN}" -H "Accept: application/json")

TAG_ENC=$(python3 -c "import urllib.parse,sys; print(urllib.parse.quote(sys.argv[1], safe=''))" "$TAG")
REL_JSON=$(mktemp)
trap 'rm -f "$REL_JSON"' EXIT

code=$(curl -sS -o "$REL_JSON" -w "%{http_code}" "${AUTH_H[@]}" \
  "$API/repos/${GITEA_OWNER}/${GITEA_REPO}/releases/tags/${TAG_ENC}")

if [ "$code" != "200" ]; then
  echo "Gitea GET release by tag failed HTTP $code (release must already exist):" >&2
  cat "$REL_JSON" >&2
  exit 1
fi

rel_id=$(jq -r '.id' "$REL_JSON")
if [ -z "$rel_id" ] || [ "$rel_id" = "null" ]; then
  echo "Could not resolve Gitea release id" >&2
  exit 1
fi

should_delete_attachment() {
  local l
  l=$(printf '%s' "${1##*/}" | tr '[:upper:]' '[:lower:]')
  case "$l" in
    fractured-launcher*) return 0 ;;
    *.blockmap) return 0 ;;
    builder-debug.yml|builder-debug.yaml) return 0 ;;
  esac
  return 1
}

should_delete_yml_attachment() {
  local l
  l=$(printf '%s' "${1##*/}" | tr '[:upper:]' '[:lower:]')
  case "$l" in
    latest.yml) [ -f "$DIST_DIR/latest.yml" ] ;;
    latest-linux.yml) [ -f "$DIST_DIR/latest-linux.yml" ] ;;
    latest-mac.yml) [ -f "$DIST_DIR/latest-mac.yml" ] ;;
    *) return 1 ;;
  esac
}

while read -r line; do
  [ -z "$line" ] && continue
  aid=$(printf '%s' "$line" | cut -f1)
  aname=$(printf '%s' "$line" | cut -f2-)
  if should_delete_attachment "$aname" || should_delete_yml_attachment "$aname"; then
    echo "Removing old attachment: $aname (id=$aid)"
    curl -fsS -X DELETE "${AUTH_H[@]}" \
      "$API/repos/${GITEA_OWNER}/${GITEA_REPO}/releases/${rel_id}/assets/${aid}" || true
  fi
done < <(jq -r '(.attachments // .assets // [])[] | "\(.id)\t\(.name)"' "$REL_JSON")

shopt -s nullglob
upload_paths=()
for f in "$DIST_DIR"/Fractured-Launcher*.exe "$DIST_DIR"/Fractured-Launcher*.AppImage \
  "$DIST_DIR"/latest.yml "$DIST_DIR"/latest-linux.yml "$DIST_DIR"/latest-mac.yml; do
  [ -f "$f" ] || continue
  bn=$(basename "$f")
  if should_skip_gitea_upload "$bn"; then
    continue
  fi
  upload_paths+=("$f")
done

if [ "${#upload_paths[@]}" -eq 0 ]; then
  echo "No launcher files to upload under $DIST_DIR (expected Fractured-Launcher*.exe, *.AppImage, latest.yml, latest-linux.yml)." >&2
  exit 1
fi

for f in "${upload_paths[@]}"; do
  bn=$(basename "$f")
  echo "Uploading $bn …"
  curl -fsS -X POST "${AUTH_H[@]}" \
    -F "attachment=@${f}" \
    "$API/repos/${GITEA_OWNER}/${GITEA_REPO}/releases/${rel_id}/assets"
done

echo "Done. Release $TAG (id=$rel_id): replaced ${#upload_paths[@]} launcher file(s); game assets left intact."