name: Preview Builder
on:
  push:
    branches:
      - master
    paths:
      - '**'
      - '!**.md'
      - '!.github/**'
      - '.github/scripts/**'
      - '.github/workflows/**'

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

jobs:
  build:
    name: Build preview app
    runs-on: ubuntu-latest

    steps:
      - name: Clone repo
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up gradle
        uses: gradle/actions/setup-gradle@v3

      - name: Setup Android SDK
        run: |
          ${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin/sdkmanager "build-tools;29.0.3"

      - name: Set up JDK
        uses: actions/setup-java@v4
        with:
          java-version: 17
          distribution: temurin

      - name: Prepare build
        run: |
          set -e

          git fetch --tags

          prev_release_sha=$(git log --oneline --decorate --tags --no-walk --pretty='%C(auto)%h' | head -n 1)
          echo "PREV_RELEASE_SHA=$prev_release_sha" >> $GITHUB_ENV
          
          current_sha=$(git log -1 --pretty='%C(auto)%h' | head -n 1)
          echo "CURRENT_SHA=$current_sha" >> $GITHUB_ENV
          
          echo "COMMIT_LOGS<<{delimiter}
          $(curl -H "Accept: application/vnd.github.v3+json" \
            "https://api.github.com/repos/komikku-app/komikku/compare/$prev_release_sha...$current_sha" \
            | jq '[.commits[]|{message:(.commit.message | split("\n")), username:.author.login}]' \
            | jq -r '.[]|"- \(.message | first) (@\(.username))"')
          {delimiter}" >> $GITHUB_ENV

      - name: Set CHANGELOG
        run: |
          changelog="$(git log ${{ env.PREV_RELEASE_SHA }}..${{ env.CURRENT_SHA }} --pretty=format:'{{changelogtext}}%s (@%an){{!changelogtext}}')"
          changelog="${changelog//$'%'/%25}"
          changelog="${changelog//$'\n'/}"
          changelog="${changelog//$'\r'/}"
          changelog="${changelog//$'<'/}"
          changelog="${changelog//$'>'/}"
          changelog="${changelog//$'&'/}"
          changelog="$(echo $changelog | sed -e 's/{{changelogtext}}/<changelogtext>/g')"
          changelog="$(echo $changelog | sed -e 's/{{!changelogtext}}/<\/changelogtext>/g')"
          changelog="<?xml version=\"1.0\" encoding=\"utf-8\"?><changelog bulletedList=\"true\"><changelogversion versionName=\"${{ github.run_number }}\" changeDate=\"\">$changelog</changelogversion></changelog>"
          echo "CHANGELOG=$changelog" >> $GITHUB_ENV

      - name: Write Version.kt
        uses: DamianReeves/write-file-action@v1.3
        with:
          path: app/src/main/java/exh/Version.kt
          contents: 'package exh const val syDebugVersion: String = "${{ github.run_number }}"'
          write-mode: overwrite

      - name: Write changelog_debug.xml
        uses: DamianReeves/write-file-action@v1.3
        with:
          path: app/src/main/res/raw/changelog_debug.xml
          contents: "${{ env.CHANGELOG }}"
          write-mode: overwrite

      - name: Write google-services.json
        uses: DamianReeves/write-file-action@v1.3
        with:
          path: app/google-services.json
          contents: ${{ secrets.GOOGLE_SERVICES_TEXT }}
          write-mode: overwrite

      - name: Write client_secrets.json
        uses: DamianReeves/write-file-action@v1.3
        with:
          path: app/src/main/assets/client_secrets.json
          contents: ${{ secrets.CLIENT_SECRETS_TEXT }}
          write-mode: overwrite

      - name: Build app
        if: ${{ ! startsWith(github.ref, 'refs/tags/') && github.repository == 'komikku-app/komikku' }}
        run: ./gradlew assembleStandardRelease testStandardReleaseUnitTest --stacktrace

      - name: Sign Android Release
        if: ${{ ! startsWith(github.ref, 'refs/tags/') && github.repository == 'komikku-app/komikku' }}
        uses: r0adkll/sign-android-release@v1
        with:
          releaseDirectory: app/build/outputs/apk/standard/release
          signingKeyBase64: ${{ secrets.SIGNING_KEY }}
          alias: ${{ secrets.ALIAS }}
          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
          keyPassword: ${{ secrets.KEY_PASSWORD }}

      - name: Clean up build artifacts
        if: ${{ ! startsWith(github.ref, 'refs/tags/') && github.repository == 'komikku-app/komikku' }}
        run: |
          set -e

          mv app/build/outputs/apk/standard/release/app-standard-universal-release-unsigned-signed.apk Komikku-pre-${{ github.run_number }}.apk
          sha=`sha256sum Komikku-pre-${{ github.run_number }}.apk | awk '{ print $1 }'`
          echo "APK_UNIVERSAL_SHA=$sha" >> $GITHUB_ENV

          cp app/build/outputs/apk/standard/release/app-standard-arm64-v8a-release-unsigned-signed.apk Komikku-arm64-v8a-pre-${{ github.run_number }}.apk
          sha=`sha256sum Komikku-arm64-v8a-pre-${{ github.run_number }}.apk | awk '{ print $1 }'`
          echo "APK_ARM64_V8A_SHA=$sha" >> $GITHUB_ENV

          cp app/build/outputs/apk/standard/release/app-standard-armeabi-v7a-release-unsigned-signed.apk Komikku-armeabi-v7a-pre-${{ github.run_number }}.apk
          sha=`sha256sum Komikku-armeabi-v7a-pre-${{ github.run_number }}.apk | awk '{ print $1 }'`
          echo "APK_ARMEABI_V7A_SHA=$sha" >> $GITHUB_ENV

          cp app/build/outputs/apk/standard/release/app-standard-x86-release-unsigned-signed.apk Komikku-x86-pre-${{ github.run_number }}.apk
          sha=`sha256sum Komikku-x86-pre-${{ github.run_number }}.apk | awk '{ print $1 }'`
          echo "APK_X86_SHA=$sha" >> $GITHUB_ENV
          
          cp app/build/outputs/apk/standard/release/app-standard-x86_64-release-unsigned-signed.apk Komikku-x86_64-pre-${{ github.run_number }}.apk
          sha=`sha256sum Komikku-x86_64-pre-${{ github.run_number }}.apk | awk '{ print $1 }'`
          echo "APK_X86_64_SHA=$sha" >> $GITHUB_ENV

      - name: Create release
        if: ${{ ! startsWith(github.ref, 'refs/tags/') && github.repository == 'komikku-app/komikku' }}
        uses: softprops/action-gh-release@v1
        with:
          tag_name: pre-release-${{ github.run_number }}
          name: Komikku Preview Build ${{ github.run_number }}
          body: |
            ### Commits

            https://github.com/komikku-app/komikku/compare/${{ env.PREV_RELEASE_SHA }}...${{ env.CURRENT_SHA }}

            ${{ env.COMMIT_LOGS }}

            ---

            ### Checksums

            | Variant | SHA-256 |
            | ------- | ------- |
            | Universal | ${{ env.APK_UNIVERSAL_SHA }} |
            | arm64-v8a | ${{ env.APK_ARM64_V8A_SHA }} |
            | armeabi-v7a | ${{ env.APK_ARMEABI_V7A_SHA }} |
            | x86 | ${{ env.APK_X86_SHA }} |
            | x86_64 | ${{ env.APK_X86_64_SHA }} |
          files: |
            Komikku-pre-${{ github.run_number }}.apk
            Komikku-arm64-v8a-pre-${{ github.run_number }}.apk
            Komikku-armeabi-v7a-pre-${{ github.run_number }}.apk
            Komikku-x86-pre-${{ github.run_number }}.apk
            Komikku-x86_64-pre-${{ github.run_number }}.apk
          draft: true
          prerelease: false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}