name: 同步模型价格数据

on:
  schedule:
    - cron: '*/10 * * * *'
  workflow_dispatch: {}

jobs:
  sync-pricing:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: 检出 price-mirror 分支
        uses: actions/checkout@v4
        with:
          ref: price-mirror
          fetch-depth: 0

      - name: 下载上游价格文件
        id: fetch
        run: |
          set -euo pipefail
          curl -fsSL https://raw.githubusercontent.com/BerriAI/litellm/main/model_prices_and_context_window.json \
            -o model_prices_and_context_window.json.new

          NEW_HASH=$(sha256sum model_prices_and_context_window.json.new | awk '{print $1}')

          if [ -f model_prices_and_context_window.sha256 ]; then
            OLD_HASH=$(cat model_prices_and_context_window.sha256 | tr -d ' \n\r')
          else
            OLD_HASH=""
          fi

          if [ "$NEW_HASH" = "$OLD_HASH" ]; then
            echo "价格文件无变化，跳过提交"
            echo "changed=false" >> "$GITHUB_OUTPUT"
            rm -f model_prices_and_context_window.json.new
            exit 0
          fi

          mv model_prices_and_context_window.json.new model_prices_and_context_window.json
          echo "$NEW_HASH" > model_prices_and_context_window.sha256

          echo "changed=true" >> "$GITHUB_OUTPUT"
          echo "hash=$NEW_HASH" >> "$GITHUB_OUTPUT"

      - name: 提交并推送变更
        if: steps.fetch.outputs.changed == 'true'
        env:
          NEW_HASH: ${{ steps.fetch.outputs.hash }}
        run: |
          set -euo pipefail
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add model_prices_and_context_window.json model_prices_and_context_window.sha256
          COMMIT_MSG="chore: 同步模型价格数据"
          if [ -n "${NEW_HASH}" ]; then
            COMMIT_MSG="$COMMIT_MSG (${NEW_HASH})"
          fi
          git commit -m "$COMMIT_MSG"
          git push origin price-mirror