name: Sync LobeHub models

on:
  schedule:
    - cron: '17 3 * * *'
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

concurrency:
  group: sync-lobehub-models
  cancel-in-progress: false

jobs:
  sync:
    runs-on: ubuntu-latest
    timeout-minutes: 15
    steps:
      - name: Checkout Axolotl Launcher
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0
          persist-credentials: false

      - name: Setup Node
        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          node-version-file: .nvmrc

      - name: Checkout LobeHub
        id: upstream
        run: |
          set -euo pipefail
          git clone --depth 1 --branch main https://github.com/lobehub/lobehub.git "$RUNNER_TEMP/lobehub"
          sha="$(git -C "$RUNNER_TEMP/lobehub" rev-parse HEAD)"
          echo "sha=$sha" >> "$GITHUB_OUTPUT"

      - name: Generate model catalog
        run: >-
          node --disable-warning=ExperimentalWarning --experimental-vm-modules
          scripts/axolotl/sync-lobehub-models.mjs
          --upstream "$RUNNER_TEMP/lobehub"
          --commit "${{ steps.upstream.outputs.sha }}"

      - name: Detect changes
        id: changes
        run: |
          if git diff --quiet -- packages/app-lib/src/api/ai.rs packages/app-lib/src/api/lobehub_text_models.json; then
            echo "changed=false" >> "$GITHUB_OUTPUT"
          else
            echo "changed=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Close obsolete pull request
        if: steps.changes.outputs.changed == 'false'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          base="${{ github.event.repository.default_branch }}"
          branch="automation/sync-lobehub-models"
          pr_number="$(gh pr list --state open --base "$base" --head "$branch" --json number --jq '.[0].number // empty')"
          if [ -n "$pr_number" ]; then
            gh pr close "$pr_number" --delete-branch --comment "Closing because the current LobeHub model catalog no longer differs from $base."
          fi

      - name: Push model update and create pull request
        if: steps.changes.outputs.changed == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          base="${{ github.event.repository.default_branch }}"
          branch="automation/sync-lobehub-models"
          upstream_sha="${{ steps.upstream.outputs.sha }}"
          short_sha="${upstream_sha:0:12}"
          title="chore(ai): sync LobeHub models"
          body="Automated synchronization of supported chat models from [LobeHub](https://github.com/lobehub/lobehub/tree/${upstream_sha}/packages/model-bank/src/aiModels) at \`${upstream_sha}\`."

          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          gh auth setup-git

          expected=""
          if git ls-remote --exit-code --heads origin "refs/heads/$branch" >/dev/null 2>&1; then
            git fetch --no-tags origin "refs/heads/$branch:refs/remotes/origin/$branch"
            expected="$(git rev-parse "refs/remotes/origin/$branch")"
          fi

          git switch -C "$branch"
          git add packages/app-lib/src/api/ai.rs packages/app-lib/src/api/lobehub_text_models.json
          git commit -m "chore(ai): sync LobeHub models at $short_sha"
          git push --force-with-lease="refs/heads/$branch:$expected" origin "HEAD:refs/heads/$branch"

          pr_number="$(gh pr list --state open --base "$base" --head "$branch" --json number --jq '.[0].number // empty')"
          if [ -n "$pr_number" ]; then
            gh api --method PATCH "repos/$GITHUB_REPOSITORY/pulls/$pr_number" -f title="$title" -f body="$body" >/dev/null
          else
            gh pr create --base "$base" --head "$branch" --title "$title" --body "$body"
          fi