name: Forgejo Release Builder
# NOTE: keep Forgejo action refs node20-compatible for runner v3.5.1.

on:
  push:
    tags:
      - v*

permissions:
  contents: write

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  release:
    runs-on: desktop-release
    steps:
      - name: Clone repository
        shell: bash
        env:
          FORGEJO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          rm -rf .git
          git init .
          origin_url="${GITHUB_SERVER_URL#https://}"
          origin_url="${origin_url#http://}"
          git remote add origin "https://copilot:${FORGEJO_TOKEN}@${origin_url}/${GITHUB_REPOSITORY}.git"
          git -c http.sslVerify=false fetch --tags --prune --depth=1 origin "${GITHUB_SHA}"
          git checkout --force FETCH_HEAD

      - name: Set up JDK
        shell: bash
        run: |
          set -euo pipefail
          pkg_install() {
            if [ "$(id -u)" -eq 0 ]; then
              "$@"
            elif command -v sudo >/dev/null 2>&1; then
              sudo "$@"
            else
              echo "Need root or sudo to install packages."
              exit 1
            fi
          }
          if command -v java >/dev/null 2>&1; then
            java -version
          else
            echo "PATH=$PATH"
            echo "pkg managers: dnf=$(command -v dnf || true) apt=$(command -v apt-get || true) apk=$(command -v apk || true) pacman=$(command -v pacman || true)"
            if [ -x /usr/bin/dnf ] || command -v dnf >/dev/null 2>&1; then
              pkg_install dnf install -y java-17-openjdk-devel
            elif [ -x /usr/bin/apt-get ] || command -v apt-get >/dev/null 2>&1; then
              pkg_install apt-get update
              pkg_install apt-get install -y openjdk-17-jdk
            elif [ -x /sbin/apk ] || [ -x /usr/sbin/apk ] || command -v apk >/dev/null 2>&1; then
              pkg_install apk add --no-cache openjdk17
            elif [ -x /usr/bin/pacman ] || command -v pacman >/dev/null 2>&1; then
              pkg_install pacman -Sy --noconfirm jdk17-openjdk
            else
              echo "No supported package manager found for JDK installation."
              exit 1
            fi
            java -version
          fi
          if command -v javac >/dev/null 2>&1; then
            javac -version
            java_home="$(dirname "$(dirname "$(readlink -f "$(command -v javac)")")")"
            echo "JAVA_HOME=$java_home" >> "$GITHUB_ENV"
          fi

      - name: Prepare release metadata
        id: prepare
        shell: bash
        run: |
          set -euo pipefail

          version_tag="${GITHUB_REF_NAME:-${GITHUB_REF#refs/tags/}}"
          version_display="$(printf '%s' "$version_tag" | sed -E 's/^v//' )"
          previous_tag="$(git tag --list 'v*' --sort=-version:refname | grep -Fxv "$version_tag" | head -n 1 || true)"

          echo "VERSION_TAG=$version_tag" >> "$GITHUB_OUTPUT"
          echo "VERSION_DISPLAY=$version_display" >> "$GITHUB_OUTPUT"
          echo "PREV_TAG_NAME=$previous_tag" >> "$GITHUB_OUTPUT"

          if [ -n "$previous_tag" ]; then
            commit_logs="$(git log --pretty=format:'- %s (@%an)' "${previous_tag}..HEAD")"
          else
            commit_logs='- Initial release'
          fi

          {
            echo 'COMMIT_LOGS<<EOF'
            printf '%s\n' "$commit_logs"
            echo 'EOF'
          } >> "$GITHUB_OUTPUT"

      - name: Set up Gradle
        shell: bash
        run: |
          set -euo pipefail
          sdk_candidates=(
            "${ANDROID_HOME:-}"
            "${ANDROID_SDK_ROOT:-}"
            "/opt/android-sdk-linux"
            "/home/yuna/Android/Sdk"
            "/home/runner/Android/Sdk"
            "/root/Android/Sdk"
          )
          sdk_dir=""
          for candidate in "${sdk_candidates[@]}"; do
            if [ -n "$candidate" ] && [ -d "$candidate/platforms" ] && [ -d "$candidate/build-tools" ]; then
              sdk_dir="$candidate"
              break
            fi
          done
          if [ -z "$sdk_dir" ]; then
            echo "Android SDK not found. Checked:"
            for candidate in "${sdk_candidates[@]}"; do
              [ -n "$candidate" ] && echo "  - $candidate"
            done
            exit 1
          fi
          export ANDROID_HOME="$sdk_dir"
          export ANDROID_SDK_ROOT="$sdk_dir"
          echo "ANDROID_HOME=$ANDROID_HOME" >> "$GITHUB_ENV"
          echo "ANDROID_SDK_ROOT=$ANDROID_SDK_ROOT" >> "$GITHUB_ENV"
          sdkmanager_bin="$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager"
          if [ -x "$sdkmanager_bin" ]; then
            set +o pipefail
            yes | "$sdkmanager_bin" --licenses >/dev/null || true
            yes | "$sdkmanager_bin" "platform-tools" "build-tools;35.0.0"
            set -o pipefail
          else
            echo "sdkmanager not found at $sdkmanager_bin"
          fi
          if [ ! -x "$ANDROID_HOME/build-tools/35.0.0/aidl" ]; then
            echo "Expected executable missing: $ANDROID_HOME/build-tools/35.0.0/aidl"
            ls -la "$ANDROID_HOME/build-tools" || true
            exit 1
          fi
          printf 'sdk.dir=%s\n' "$ANDROID_HOME" > local.properties
          chmod +x ./gradlew
          export GRADLE_USER_HOME="${PWD}/.gradle-ci"
          ./gradlew --no-daemon --max-workers=1 \
            "-Dorg.gradle.jvmargs=-Xmx2048m -XX:MaxMetaspaceSize=640m -XX:ReservedCodeCacheSize=192m -Dfile.encoding=UTF-8" \
            -Dorg.gradle.parallel=false \
            -Dorg.gradle.configureondemand=false \
            -Dorg.gradle.vfs.watch=false \
            -Dkotlin.daemon.enabled=false \
            "-Dkotlin.daemon.jvmargs=-Xmx512m,-XX:MaxMetaspaceSize=256m,-XX:ReservedCodeCacheSize=128m" \
            -Dkotlin.compiler.execution.strategy=in-process \
            --version

      - name: Build app
        run: |
          if [ -n "${ANDROID_HOME:-}" ]; then
            printf 'sdk.dir=%s\n' "$ANDROID_HOME" > local.properties
          fi
          export GRADLE_USER_HOME="${PWD}/.gradle-ci"
          ./gradlew --no-daemon --max-workers=1 \
            "-Dorg.gradle.jvmargs=-Xmx2048m -XX:MaxMetaspaceSize=640m -XX:ReservedCodeCacheSize=192m -Dfile.encoding=UTF-8" \
            -Dorg.gradle.parallel=false \
            -Dorg.gradle.configureondemand=false \
            -Dorg.gradle.vfs.watch=false \
            -Dkotlin.daemon.enabled=false \
            "-Dkotlin.daemon.jvmargs=-Xmx512m,-XX:MaxMetaspaceSize=256m,-XX:ReservedCodeCacheSize=128m" \
            -Dkotlin.compiler.execution.strategy=in-process \
            --stacktrace \
            assembleRelease -Penable-updater -Pdisable-code-shrink

      - name: Rename release artifacts
        shell: bash
        run: |
          set -euo pipefail

          version_tag="${{ steps.prepare.outputs.VERSION_TAG }}"

          mv app/build/outputs/apk/release/app-universal-release-unsigned.apk "Komikku-${version_tag}-unsigned.apk"
          mv app/build/outputs/apk/release/app-arm64-v8a-release-unsigned.apk "Komikku-arm64-v8a-${version_tag}-unsigned.apk"
          mv app/build/outputs/apk/release/app-armeabi-v7a-release-unsigned.apk "Komikku-armeabi-v7a-${version_tag}-unsigned.apk"
          mv app/build/outputs/apk/release/app-x86-release-unsigned.apk "Komikku-x86-${version_tag}-unsigned.apk"
          mv app/build/outputs/apk/release/app-x86_64-release-unsigned.apk "Komikku-x86_64-${version_tag}-unsigned.apk"

          if [ -d app/build/outputs/mapping/release ]; then
            zip -qr "Komikku-mapping-${version_tag}.zip" app/build/outputs/mapping/release
          fi

      - name: Sign APKs (optional)
        shell: bash
        env:
          SIGNING_KEYSTORE_B64: ${{ secrets.SIGNING_KEYSTORE_B64 }}
          SIGNING_KEYSTORE_PASSWORD: ${{ secrets.SIGNING_KEYSTORE_PASSWORD }}
          SIGNING_KEY_ALIAS: ${{ secrets.SIGNING_KEY_ALIAS }}
          SIGNING_KEY_PASSWORD: ${{ secrets.SIGNING_KEY_PASSWORD }}
        run: |
          set -euo pipefail

          if [ -z "${SIGNING_KEYSTORE_B64}" ] || [ -z "${SIGNING_KEYSTORE_PASSWORD}" ] || [ -z "${SIGNING_KEY_ALIAS}" ] || [ -z "${SIGNING_KEY_PASSWORD}" ]; then
            echo "Signing secrets not fully set; keeping unsigned APKs."
            exit 0
          fi

          keystore_file="$(mktemp)"
          printf '%s' "${SIGNING_KEYSTORE_B64}" | base64 -d > "${keystore_file}"

          apksigner_bin=""
          if command -v apksigner >/dev/null 2>&1; then
            apksigner_bin="$(command -v apksigner)"
          elif [ -n "${ANDROID_HOME:-}" ] && [ -d "${ANDROID_HOME}/build-tools" ]; then
            apksigner_bin="$(ls -1 "${ANDROID_HOME}"/build-tools/*/apksigner 2>/dev/null | sort -V | tail -n 1 || true)"
          fi

          if [ -z "${apksigner_bin}" ]; then
            echo "apksigner not found in PATH or ANDROID_HOME/build-tools."
            exit 1
          fi

          for unsigned_apk in Komikku-*-unsigned.apk; do
            [ -e "${unsigned_apk}" ] || continue
            signed_apk="${unsigned_apk/-unsigned.apk/.apk}"
            "${apksigner_bin}" sign \
              --ks "${keystore_file}" \
              --ks-key-alias "${SIGNING_KEY_ALIAS}" \
              --ks-pass "pass:${SIGNING_KEYSTORE_PASSWORD}" \
              --key-pass "pass:${SIGNING_KEY_PASSWORD}" \
              --out "${signed_apk}" \
              "${unsigned_apk}"
            "${apksigner_bin}" verify "${signed_apk}"
          done

      - name: Create Obtainium-friendly aliases
        shell: bash
        run: |
          set -euo pipefail

          alias_asset() {
            src="$1"
            dst="$2"
            if [ -e "$src" ]; then
              cp -f "$src" "$dst"
            fi
          }

          # Prefer signed APKs; fallback to unsigned when signing is not configured.
          alias_asset "$(ls -1t Komikku-arm64-v8a-*.apk 2>/dev/null | head -n1)" "Komikku-arm64-v8a.apk"
          alias_asset "$(ls -1t Komikku-arm64-v8a-*-unsigned.apk 2>/dev/null | head -n1)" "Komikku-arm64-v8a.apk"

          for candidate in Komikku-*.apk; do
            case "$candidate" in
              *arm64-v8a*|*armeabi-v7a*|*x86_64*|*x86*)
                ;;
              *)
                alias_asset "$candidate" "Komikku-universal.apk"
                break
                ;;
            esac
          done

      - name: Create or update release
        id: release
        shell: bash
        env:
          FORGEJO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          VERSION_TAG: ${{ steps.prepare.outputs.VERSION_TAG }}
          VERSION_DISPLAY: ${{ steps.prepare.outputs.VERSION_DISPLAY }}
          PREV_TAG_NAME: ${{ steps.prepare.outputs.PREV_TAG_NAME }}
          COMMIT_LOGS: ${{ steps.prepare.outputs.COMMIT_LOGS }}
          REPO_URL: ${{ github.server_url }}/${{ github.repository }}
          REPOSITORY_NAME: ${{ github.repository }}
        run: |
          set -euo pipefail

          api_base="${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases"
          payload_file="$(mktemp)"
          response_file="$(mktemp)"

          python3 - <<'PY' > "$payload_file"
          import json
          import os
          import textwrap

          version_tag = os.environ["VERSION_TAG"]
          version_display = os.environ.get("VERSION_DISPLAY", version_tag)
          previous_tag = os.environ.get("PREV_TAG_NAME", "").strip()
          commit_logs = os.environ.get("COMMIT_LOGS", "").strip() or "- Initial release"
          repo_url = os.environ["REPO_URL"]
          repository_name = os.environ["REPOSITORY_NAME"]

          if previous_tag:
              full_changelog = (
                  f"**Full Changelog**: "
                  f"[{repository_name}@{previous_tag}...{version_tag}]"
                  f"({repo_url}/compare/{previous_tag}...{version_tag})"
              )
          else:
              full_changelog = ""

          body = textwrap.dedent(
              f"""\
              #### What's Changed
              ##### New

              ##### Improve

              ##### Fix

              {commit_logs}

              ##### Based on

              {full_changelog}

              <!-->
              > [!TIP]
              >
              > ### If you are unsure which version to download then go with `Komikku-universal.apk`
              """,
          )

          print(
              json.dumps(
                  {
                      "tag_name": version_tag,
                      "name": f"Komikku {version_display}",
                      "body": body,
                      "draft": True,
                      "prerelease": False,
                  },
              ),
          )
          PY

          status="$(curl -sS -o "$response_file" -w '%{http_code}' \
            -H "Authorization: token ${FORGEJO_TOKEN}" \
            "${api_base}/tags/${VERSION_TAG}")"

          if [ "$status" = "200" ]; then
            release_id="$(python3 -c 'import json, sys; print(json.load(sys.stdin)["id"])' < "$response_file")"
            curl -fsS \
              -X PATCH \
              -H "Authorization: token ${FORGEJO_TOKEN}" \
              -H 'Content-Type: application/json' \
              --data @"$payload_file" \
              "${api_base}/${release_id}" \
              > "$response_file"
          elif [ "$status" = "404" ]; then
            curl -fsS \
              -X POST \
              -H "Authorization: token ${FORGEJO_TOKEN}" \
              -H 'Content-Type: application/json' \
              --data @"$payload_file" \
              "${api_base}" \
              > "$response_file"
            release_id="$(python3 -c 'import json, sys; print(json.load(sys.stdin)["id"])' < "$response_file")"
          else
            cat "$response_file"
            exit 1
          fi

          echo "RELEASE_ID=$release_id" >> "$GITHUB_OUTPUT"

      - name: Upload release assets
        shell: bash
        env:
          FORGEJO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          RELEASE_ID: ${{ steps.release.outputs.RELEASE_ID }}
        run: |
          set -euo pipefail

          release_api="${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/${RELEASE_ID}"
          assets_file="$(mktemp)"

          curl -fsS \
            -H "Authorization: token ${FORGEJO_TOKEN}" \
            "${release_api}/assets" \
            > "$assets_file"

          for file in Komikku-*.apk Komikku-mapping-*.zip; do
            [ -e "$file" ] || continue

            if [ "${file#*-unsigned.apk}" != "${file}" ]; then
              signed_candidate="${file/-unsigned.apk/.apk}"
              if [ -e "${signed_candidate}" ]; then
                continue
              fi
            fi

            asset_name="$(basename "$file")"
            asset_id="$(
              python3 -c 'import json, sys; assets = json.load(open(sys.argv[1], encoding="utf-8")); name = sys.argv[2]; print(next((str(asset["id"]) for asset in assets if asset.get("name") == name), ""))' \
                "$assets_file" \
                "$asset_name"
            )"

            if [ -n "$asset_id" ]; then
              curl -fsS \
                -X DELETE \
                -H "Authorization: token ${FORGEJO_TOKEN}" \
                "${release_api}/assets/${asset_id}" \
                > /dev/null
            fi

            encoded_name="$(python3 -c 'import sys, urllib.parse; print(urllib.parse.quote(sys.argv[1]))' "$asset_name")"

            curl -fsS \
              -X POST \
              -H "Authorization: token ${FORGEJO_TOKEN}" \
              -H 'Content-Type: application/octet-stream' \
              --data-binary @"$file" \
              "${release_api}/assets?name=${encoded_name}" \
              > /dev/null
          done