import { execute, queryOne } from '../../../utils/db'

interface LinkBody {
  todoId: number
  weeklyReportId: number
  markCompleted?: boolean
}

/**
 * TODO와 주간보고 연계
 * POST /api/todo/report/link
 */
export default defineEventHandler(async (event) => {
  const body = await readBody<LinkBody>(event)
  
  if (!body.todoId || !body.weeklyReportId) {
    throw createError({ statusCode: 400, message: 'TODO ID와 주간보고 ID가 필요합니다.' })
  }
  
  const todo = await queryOne('SELECT * FROM wr_todo WHERE todo_id = $1', [body.todoId])
  if (!todo) {
    throw createError({ statusCode: 404, message: 'TODO를 찾을 수 없습니다.' })
  }
  
  const updates = ['weekly_report_id = $1', 'updated_at = NOW()']
  const values = [body.weeklyReportId]
  
  if (body.markCompleted) {
    updates.push('status = $2', 'completed_at = NOW()')
    values.push('COMPLETED')
  }
  
  values.push(body.todoId)
  
  await execute(`
    UPDATE wr_todo SET ${updates.join(', ')} WHERE todo_id = $${values.length}
  `, values)
  
  return {
    success: true,
    message: body.markCompleted ? 'TODO가 완료 처리되고 주간보고와 연계되었습니다.' : 'TODO가 주간보고와 연계되었습니다.'
  }
})