#!/usr/bin/env bash
set -euo pipefail

BARE="/docker/gitea/gitea/git/repositories/remco/epicnext-cms.git"
GITEA_API="${GITEA_API:-https://gitlab.epicnabbo.nl}"
REPO="remco/EpicNext-Cms"
TOKEN="${GITEA_TOKEN:-}"

if [ $# -ne 1 ]; then
  echo "Usage: $0 <tag>"
  exit 1
fi

VERSION="$1"

if [ -z "$TOKEN" ]; then
  echo "ERROR: GITEA_TOKEN not set"
  exit 1
fi

echo "=== Creating release for ${VERSION} ==="

if ! git -C "$BARE" rev-parse "$VERSION" >/dev/null 2>&1; then
  echo "ERROR: tag $VERSION not found in bare repo"
  exit 1
fi

PREV_TAG="$(git -C "$BARE" tag --sort=-creatordate | head -2 | tail -1 || echo '')"

if [ -n "$PREV_TAG" ] && [ "$PREV_TAG" != "$VERSION" ]; then
  CHANGELOG="$(git -C "$BARE" log --oneline --no-decorate "${PREV_TAG}..${VERSION}")"
else
  CHANGELOG="$(git -C "$BARE" log --oneline --no-decorate "${VERSION}")"
fi

[ -z "$CHANGELOG" ] && CHANGELOG="Initial release"

echo "Previous tag: ${PREV_TAG:-none}"
echo "Changelog (${#CHANGELOG} chars):"
echo "${CHANGELOG}"

BODY="## EpicNext-CMS ${VERSION}

### Changes
${CHANGELOG}

---
*Automated release from Gitea Actions*
"

echo "$BODY" | jq -Rs '{tag_name: $v, name: $v, body: ., draft: false, prerelease: false}' --arg v "${VERSION}" > /tmp/payload.json

HTTP_CODE="$(curl -s -w '%{http_code}' -o /tmp/release-resp.json \
  -X POST "${GITEA_API}/api/v1/repos/${REPO}/releases" \
  -H "Authorization: token ${TOKEN}" \
  -H "Content-Type: application/json" \
  -d @/tmp/payload.json)"

if [ "${HTTP_CODE}" = "409" ]; then
  echo "Release exists, updating..."
  RELEASES="$(curl -sf "${GITEA_API}/api/v1/repos/${REPO}/releases" \
    -H "Authorization: token ${TOKEN}")"
  REL_ID="$(echo "$RELEASES" | jq -r ".[] | select(.tag_name==\"${VERSION}\") | .id")"
  echo "Release ID: ${REL_ID}"
  HTTP_CODE="$(curl -s -w '%{http_code}' -o /tmp/release-resp.json \
    -X PATCH "${GITEA_API}/api/v1/repos/${REPO}/releases/${REL_ID}" \
    -H "Authorization: token ${TOKEN}" \
    -H "Content-Type: application/json" \
    -d @/tmp/payload.json)"
fi

if [ "${HTTP_CODE:-0}" -ge 200 ] && [ "${HTTP_CODE:-0}" -lt 300 ]; then
  echo "SUCCESS: Release ${VERSION} created/updated"
  cat /tmp/release-resp.json | jq -r '.html_url // .id'
else
  echo "FAILED HTTP ${HTTP_CODE}"
  cat /tmp/release-resp.json
  exit 1
fi