name: Check new version

on:
  workflow_dispatch:
  schedule:
    - cron: '0 0 * * 1'

jobs:
  check:
    permissions:
      contents: write
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Checkout ffmpeg
        uses: actions/checkout@v4
        with:
          repository: "FFmpeg/FFmpeg"
          path: 'ffmpeg'
          fetch-depth: 0

      - name: Checkout mpv
        uses: actions/checkout@v4
        with:
          repository: "mpv-player/mpv"
          path: 'mpv'
          fetch-depth: 0

      - name: Get latest verion
        id: version
        run: |
          cd ./ffmpeg
          latest_tag=$(git tag | grep n | grep -v "-" | sort -r | head -n 1)
          echo "ffmpeg latest tag: $latest_tag"
          echo "FFMPEG_LATEST_VERSION=$latest_tag" >> $GITHUB_ENV
          cd ..

          cd ./mpv
          latest_tag=$(git describe --tags `git rev-list --tags --max-count=1`)
          echo "mpv latest tag: $latest_tag"
          echo "MPV_LATEST_VERSION=$latest_tag" >> $GITHUB_ENV
          cd ..

          rm -rf ./ffmpeg
          rm -rf ./mpv

      - name: update to new version
        uses: jannekem/run-python-script-action@v1
        with:
          script: |
            import re

            def parse_version(ver):
              if '-' in ver or ver == '':
                return 0
              version_string = re.sub(r'[^.0-9]+', r'', ver)
              parts = re.split(r'\.', version_string)
              major = int(parts[0])
              minor = int(parts[1]) if len(parts) > 1 else 0
              patch = int(parts[2]) if len(parts) > 2 else 0
              return int(f"{major}{minor}{patch}")

            file_path = './Sources/BuildScripts/XCFrameworkBuild/main.swift'
            with open(file_path, 'r', encoding='utf-8') as file:
              content = file.read()

            mpvOldVersion = re.search(r'(case .libmpv[^"]+?)"(.+?)"', content).group(2)
            print("mpv old version:", mpvOldVersion)
            set_env('MPV_OLD_VERSION', mpvOldVersion)
            mpvNewVersion = '${{ env.MPV_LATEST_VERSION }}'
            if parse_version(mpvNewVersion) > parse_version(mpvOldVersion) and not mpvOldVersion.startswith(mpvNewVersion):
              content = re.sub(r'(case .libmpv[^"]+?)"(.+?)"', r'\1"${{ env.MPV_LATEST_VERSION }}"', content, count=1)
              set_env('FOUND_NEW_MPV_VERSION', '1')

            ffmpegOldVersion = re.search(r'(case .FFmpeg[^"]+?)"(.+?)"', content).group(2)
            print("ffmpeg old version:", ffmpegOldVersion)
            set_env('FFMPEG_OLD_VERSION', ffmpegOldVersion)
            ffmpegNewVersion = '${{ env.FFMPEG_LATEST_VERSION }}'
            if parse_version(ffmpegNewVersion) > parse_version(ffmpegOldVersion) and not ffmpegOldVersion.startswith(ffmpegNewVersion):
              content = re.sub(r'(case .FFmpeg[^"]+?)"(.+?)"', r'\1"${{ env.FFMPEG_LATEST_VERSION }}"', content, count=1)
              set_env('FOUND_NEW_FFMPEG_VERSION', '1')

            with open(file_path, 'w', encoding='utf-8') as file:
              file.write(content)
            

            file_path = './README.md'
            with open(file_path, 'r', encoding='utf-8') as file:
              content = file.read()
            if parse_version(mpvNewVersion) > parse_version(mpvOldVersion):
              content = re.sub(r'mpv-.*-blue', r'mpv-${{ env.MPV_LATEST_VERSION }}-blue', content, count=1)
            if parse_version(ffmpegNewVersion) > parse_version(ffmpegOldVersion):
              content = re.sub(r'ffmpeg-.*-blue', r'ffmpeg-${{ env.FFMPEG_LATEST_VERSION }}-blue', content, count=1)
            with open(file_path, 'w', encoding='utf-8') as file:
              file.write(content)


      - name: Create Pull Request
        if: env.FOUND_NEW_MPV_VERSION && !env.FOUND_NEW_FFMPEG_VERSION
        uses: peter-evans/create-pull-request@v6
        with:
          add-paths: |
            ./Sources/BuildScripts/XCFrameworkBuild/main.swift
            ./README.md
          title: "mpv bump version to ${{ env.MPV_LATEST_VERSION }}"
          body: |
            https://github.com/mpv-player/mpv/releases/tag/${{ env.MPV_LATEST_VERSION }}
            https://github.com/mpv-player/mpv/compare/${{ env.MPV_OLD_VERSION }}...${{ env.MPV_LATEST_VERSION }}
          commit-message: "chore: mpv bump version to ${{ env.MPV_LATEST_VERSION }}"

      - name: Create Pull Request
        if: env.FOUND_NEW_FFMPEG_VERSION && !env.FOUND_NEW_MPV_VERSION
        uses: peter-evans/create-pull-request@v6
        with:
          add-paths: |
            ./Sources/BuildScripts/XCFrameworkBuild/main.swift
            ./README.md
          title: "FFmpeg bump version to ${{ env.FFMPEG_LATEST_VERSION }}"
          body: |
            https://github.com/FFmpeg/FFmpeg/blob/${{ env.FFMPEG_LATEST_VERSION }}/Changelog
            https://github.com/FFmpeg/FFmpeg/compare/${{ env.FFMPEG_OLD_VERSION }}...${{ env.FFMPEG_LATEST_VERSION }}
          commit-message: "chore: FFmpeg bump version to ${{ env.FFMPEG_LATEST_VERSION }}"

      - name: Create Pull Request
        if: env.FOUND_NEW_FFMPEG_VERSION && env.FOUND_NEW_MPV_VERSION
        uses: peter-evans/create-pull-request@v6
        with:
          add-paths: |
            ./Sources/BuildScripts/XCFrameworkBuild/main.swift
            ./README.md
          title: "mpv ${{ env.MPV_LATEST_VERSION }} && FFmpeg ${{ env.FFMPEG_LATEST_VERSION }}"
          body: |
            https://github.com/mpv-player/mpv/releases/tag/${{ env.MPV_LATEST_VERSION }}
            https://github.com/mpv-player/mpv/compare/${{ env.MPV_OLD_VERSION }}...${{ env.MPV_LATEST_VERSION }}

            https://github.com/FFmpeg/FFmpeg/blob/${{ env.FFMPEG_LATEST_VERSION }}/Changelog
            https://github.com/FFmpeg/FFmpeg/compare/${{ env.FFMPEG_OLD_VERSION }}...${{ env.FFMPEG_LATEST_VERSION }}
          commit-message: "chore: mpv ${{ env.MPV_LATEST_VERSION }} && FFmpeg ${{ env.FFMPEG_LATEST_VERSION }}"

  check-deps:
    permissions:
      contents: write
      pull-requests: write
    strategy:
      matrix:
        library:
          - name: libass
            repository: "mpvkit/libass-build"
          - name: vulkan
            repository: "mpvkit/moltenvk-build"
          - name: libplacebo
            repository: "mpvkit/libplacebo-build"
          - name: libshaderc
            repository: "mpvkit/libshaderc-build"
          - name: libdovi
            repository: "mpvkit/libdovi-build"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Checkout latest code
        uses: actions/checkout@v4
        with:
          repository: ${{ matrix.library.repository }}
          path: 'latest_code'
          fetch-depth: 0

      - name: Get latest verion
        id: version
        run: |
          cd ./latest_code
          latest_tag=$(git tag --sort=-v:refname | grep -v "-" | head -n 1)
          echo "latest tag: $latest_tag"
          echo "LATEST_VERSION=$latest_tag" >> $GITHUB_ENV
          rm -rf ../latest_code

      - name: update to new version
        uses: jannekem/run-python-script-action@v1
        with:
          script: |
            import re

            def parse_version(ver):
              if '-' in ver or ver == '':
                return 0
              version_string = re.sub(r'[^.0-9]+', r'', ver)
              parts = re.split(r'\.', version_string)
              major = int(parts[0])
              minor = int(parts[1]) if len(parts) > 1 else 0
              patch = int(parts[2]) if len(parts) > 2 else 0
              return int(f"{major}{minor}{patch}")

            file_path = './Sources/BuildScripts/XCFrameworkBuild/main.swift'
            with open(file_path, 'r', encoding='utf-8') as file:
              content = file.read()
            oldVersion = re.search(r'(case .${{ matrix.library.name }}[^"]+?)"(.+?)"', content).group(2)
            print("old version:", oldVersion)
            newVersion = '${{ env.LATEST_VERSION }}'
            print("new version:", newVersion)
            if parse_version(newVersion) > parse_version(oldVersion) and not oldVersion.startswith(newVersion):
              content = re.sub(r'(case .${{ matrix.library.name }}[^"]+?)"(.+?)"', r'\1"${{ env.LATEST_VERSION }}"', content, count=1)
              set_env('FOUND_NEW_VERSION', '1')
              # If libass is being updated, also update its dependencies
              if '${{ matrix.library.name }}' == 'libass':
                deps = ['libunibreak', 'libfreetype', 'libfribidi', 'libharfbuzz']
                for dep in deps:
                  content = re.sub(r'(case .' + dep + r'[^"]+?)"(.+?)"', r'\1"${{ env.LATEST_VERSION }}"', content, count=1)
              with open(file_path, 'w', encoding='utf-8') as file:
                file.write(content)


      - name: Create Pull Request
        if: env.FOUND_NEW_VERSION
        uses: peter-evans/create-pull-request@v6
        with:
          add-paths: |
            ./Sources/BuildScripts/XCFrameworkBuild/main.swift
          branch: "create-pull-request/${{ matrix.library.name }}"
          delete-branch: true
          title: "${{ matrix.library.name }} bump version to ${{ env.LATEST_VERSION }}"
          body: |
            https://github.com/${{ matrix.library.repository }}/releases/tag/${{ env.LATEST_VERSION }}
          commit-message: "chore: ${{ matrix.library.name }} bump version to ${{ env.LATEST_VERSION }}"