import { insertReturning, query, execute } from '../../utils/db'
import { getClientIp } from '../../utils/ip'
import { getCurrentUserEmail, getCurrentUserId } from '../../utils/user'

interface Attendee {
  employeeId?: number
  externalName?: string
  externalCompany?: string
}

interface CreateMeetingBody {
  meetingTitle: string
  meetingType: 'PROJECT' | 'INTERNAL'
  projectId?: number
  meetingDate: string
  startTime?: string
  endTime?: string
  location?: string
  rawContent?: string
  attendees?: Attendee[]
}

/**
 * 회의록 작성
 * POST /api/meeting/create
 */
export default defineEventHandler(async (event) => {
  const body = await readBody<CreateMeetingBody>(event)
  const clientIp = getClientIp(event)
  const userEmail = await getCurrentUserEmail(event)
  const userId = await getCurrentUserId(event)
  
  // 필수값 검증
  if (!body.meetingTitle) {
    throw createError({ statusCode: 400, message: '회의 제목은 필수입니다.' })
  }
  if (!body.meetingType) {
    throw createError({ statusCode: 400, message: '회의 유형은 필수입니다.' })
  }
  if (!body.meetingDate) {
    throw createError({ statusCode: 400, message: '회의 일자는 필수입니다.' })
  }
  if (body.meetingType === 'PROJECT' && !body.projectId) {
    throw createError({ statusCode: 400, message: '프로젝트 회의는 프로젝트 선택이 필수입니다.' })
  }
  
  // 회의록 INSERT
  const meeting = await insertReturning(`
    INSERT INTO wr_meeting (
      meeting_title, meeting_type, project_id,
      meeting_date, start_time, end_time, location,
      raw_content, ai_status, author_id,
      created_ip, created_email, updated_ip, updated_email
    ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, 'NONE', $9, $10, $11, $10, $11)
    RETURNING *
  `, [
    body.meetingTitle,
    body.meetingType,
    body.meetingType === 'PROJECT' ? body.projectId : null,
    body.meetingDate,
    body.startTime || null,
    body.endTime || null,
    body.location || null,
    body.rawContent || null,
    userId,
    clientIp,
    userEmail
  ])
  
  // 참석자 INSERT
  if (body.attendees && body.attendees.length > 0) {
    for (const att of body.attendees) {
      if (att.employeeId) {
        await execute(`
          INSERT INTO wr_meeting_attendee (meeting_id, employee_id)
          VALUES ($1, $2)
        `, [meeting.meeting_id, att.employeeId])
      } else if (att.externalName) {
        await execute(`
          INSERT INTO wr_meeting_attendee (meeting_id, external_name, external_company)
          VALUES ($1, $2, $3)
        `, [meeting.meeting_id, att.externalName, att.externalCompany || null])
      }
    }
  }
  
  return {
    success: true,
    meetingId: meeting.meeting_id,
    message: '회의록이 등록되었습니다.'
  }
})