name: Update AltStore source
on:
  workflow_dispatch:
    inputs:
      tag:
        description: 'Release tag to publish (defaults to the latest release)'
        type: string
        required: false
  workflow_call:
    inputs:
      tag:
        type: string
        required: false

jobs:
  update_altstore:
    name: Update AltStore source
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          ref: main
          # Default GITHUB_TOKEN cannot bypass the "changes through PR only"
          # branch ruleset; REPO_TOKEN can (same as the release workflow).
          token: ${{ secrets.REPO_TOKEN }}
      - name: Get version info from release
        run: |
          TAG="${{ inputs.tag }}"
          if [ -z "$TAG" ]; then
            TAG=$(gh release view --json tagName --jq '.tagName')
          fi
          # Tags are <version>-<build> (stable) or <version>-beta.<build> (beta),
          # e.g. 2.0.0-263 or 2.0.0-beta.263.
          echo "TAG=${TAG}" >> $GITHUB_ENV
          echo "VERSION_NUMBER=${TAG%%-*}" >> $GITHUB_ENV
          echo "BUILD_NUMBER=${TAG##*[-.]}" >> $GITHUB_ENV
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Get IPA size from release
        run: |
          IPA_NAME="Yattee-${{ env.VERSION_NUMBER }}-iOS.ipa"
          SIZE=$(gh release view "${{ env.TAG }}" --json assets --jq ".assets[] | select(.name == \"$IPA_NAME\") | .size")
          if [ -z "$SIZE" ]; then
            echo "::error::Release ${{ env.TAG }} has no asset named $IPA_NAME — refusing to publish a broken AltStore entry"
            exit 1
          fi
          echo "IPA_NAME=${IPA_NAME}" >> $GITHUB_ENV
          echo "IPA_SIZE=${SIZE}" >> $GITHUB_ENV
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Update altstore-source.json
        run: |
          DATE=$(date -u +"%Y-%m-%dT%H:%M:%S+00:00")
          jq --arg version "${{ env.VERSION_NUMBER }}" \
             --arg build "${{ env.BUILD_NUMBER }}" \
             --arg date "$DATE" \
             --arg url "https://github.com/yattee/yattee/releases/download/${{ env.TAG }}/${{ env.IPA_NAME }}" \
             --argjson size "${{ env.IPA_SIZE }}" \
             '.apps[0].versions = [{
               version: $version,
               buildVersion: $build,
               date: $date,
               localizedDescription: "",
               downloadURL: $url,
               size: $size,
               minOSVersion: "18.0"
             }] + [.apps[0].versions[] | select(.version != $version or .buildVersion != $build)]' \
             altstore-source.json > altstore-source.tmp && mv altstore-source.tmp altstore-source.json
      - name: Commit and push
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add altstore-source.json
          git diff --cached --quiet && echo "No changes to commit" && exit 0
          git commit -m "Update AltStore source for ${{ env.VERSION_NUMBER }} (${{ env.BUILD_NUMBER }})"
          git push