name: AI Response

on:
  issue_comment:
    types:
    - created

jobs:
  response:
    name: 回覆問題留言
    runs-on: ubuntu
    if: ${{ contains(github.event.comment.body, '@opencode') }}
    steps:
    - name: 安裝 OpenCode
      run: npm install -g opencode-ai

    - name: 產生 AI 回覆
      env:
        COMMENT_BODY: ${{ github.event.comment.body }}
        ISSUE_BODY: ${{ github.event.issue.body }}
        ISSUE_TITLE: ${{ github.event.issue.title }}
        NO_COLOR: "1"
        TERM: dumb
      run: |
        clean_comment="$(printf '%s' "$COMMENT_BODY" | sed -E 's/@opencode[[:space:]]*//g')"

        {
          printf '請根據以下 Gitea issue 資訊，以繁體中文回覆使用者。\n'
          printf '請只輸出要張貼到 issue 留言中的內容，不要包含額外前言。\n\n'
          printf '## 問題標題\n%s\n\n' "$ISSUE_TITLE"
          printf '## 問題描述\n%s\n\n' "$ISSUE_BODY"
          printf '## 使用者留言\n%s\n' "$clean_comment"
        } > prompt.md

        opencode run --agent plan "$(cat prompt.md)" > response.md

    - name: 留言到問題
      env:
        GITEA_REPOSITORY: ${{ gitea.repository }}
        GITEA_SERVER_URL: ${{ gitea.server_url }}
        ISSUE_NUMBER: ${{ github.event.issue.number }}
        RUNNER_TOKEN: ${{ secrets.RUNNER_TOKEN }}
      run: |
        jq -n --rawfile body response.md '{body: $body}' > comment.json

        curl --fail-with-body \
          -X POST \
          -H "Authorization: token $RUNNER_TOKEN" \
          -H "Content-Type: application/json" \
          --data @comment.json \
          "$GITEA_SERVER_URL/api/v1/repos/$GITEA_REPOSITORY/issues/$ISSUE_NUMBER/comments"