const scheduleModel = require('../models/scheduleModel');

// 일정 목록
async function list(req, res) {
  try {
    const { company_id, date_from, date_to, status, project_id, page, limit } = req.query;
    const rows = await scheduleModel.findAll({
      company_id: company_id ? parseInt(company_id) : undefined,
      date_from,
      date_to,
      status,
      project_id: project_id ? parseInt(project_id) : undefined,
      page: page ? parseInt(page) : 1,
      limit: limit ? parseInt(limit) : 50
    });
    res.json({ success: true, data: rows });
  } catch (err) {
    console.error('Schedule list error:', err);
    res.status(500).json({ success: false, error: err.message });
  }
}

// 일정 상세
async function getById(req, res) {
  try {
    const row = await scheduleModel.findById(req.params.id);
    if (!row) return res.status(404).json({ success: false, error: '일정을 찾을 수 없습니다' });
    res.json({ success: true, data: row });
  } catch (err) {
    console.error('Schedule get error:', err);
    res.status(500).json({ success: false, error: err.message });
  }
}

// 내 일정 (협력업체 포탈)
async function mySchedules(req, res) {
  try {
    const companyId = req.user.partner_company_id;
    if (!companyId) {
      return res.status(403).json({ success: false, error: '협력업체 계정이 아닙니다' });
    }
    const rows = await scheduleModel.findByCompanyToday(companyId);
    res.json({ success: true, data: rows });
  } catch (err) {
    console.error('Schedule mySchedules error:', err);
    res.status(500).json({ success: false, error: err.message });
  }
}

// 일정 등록
async function create(req, res) {
  try {
    const { company_id, start_date, end_date } = req.body;
    if (!company_id) {
      return res.status(400).json({ success: false, error: '업체를 선택해주세요' });
    }
    if (!start_date) {
      return res.status(400).json({ success: false, error: '시작일은 필수입니다' });
    }
    if (!end_date) {
      return res.status(400).json({ success: false, error: '종료일은 필수입니다' });
    }
    if (end_date < start_date) {
      return res.status(400).json({ success: false, error: '종료일은 시작일 이후여야 합니다' });
    }
    const data = {
      ...req.body,
      registered_by: req.user.user_id || req.user.id
    };
    const row = await scheduleModel.create(data);
    res.status(201).json({ success: true, data: row });
  } catch (err) {
    console.error('Schedule create error:', err);
    res.status(500).json({ success: false, error: err.message });
  }
}

// 일정 수정
async function update(req, res) {
  try {
    const { start_date, end_date } = req.body;
    if (start_date && end_date && end_date < start_date) {
      return res.status(400).json({ success: false, error: '종료일은 시작일 이후여야 합니다' });
    }
    const row = await scheduleModel.update(req.params.id, req.body);
    if (!row) return res.status(404).json({ success: false, error: '일정을 찾을 수 없습니다' });
    res.json({ success: true, data: row });
  } catch (err) {
    console.error('Schedule update error:', err);
    res.status(500).json({ success: false, error: err.message });
  }
}

// 일정 상태 변경
async function updateStatus(req, res) {
  try {
    const { status } = req.body;
    if (!status) {
      return res.status(400).json({ success: false, error: '상태값은 필수입니다' });
    }
    const row = await scheduleModel.updateStatus(req.params.id, status);
    if (!row) return res.status(404).json({ success: false, error: '일정을 찾을 수 없습니다' });
    res.json({ success: true, data: row });
  } catch (err) {
    console.error('Schedule updateStatus error:', err);
    res.status(500).json({ success: false, error: err.message });
  }
}

// 일정 삭제
async function deleteSchedule(req, res) {
  try {
    await scheduleModel.deleteSchedule(req.params.id);
    res.json({ success: true, message: '삭제 완료' });
  } catch (err) {
    console.error('Schedule delete error:', err);
    res.status(500).json({ success: false, error: err.message });
  }
}

module.exports = { list, getById, mySchedules, create, update, updateStatus, deleteSchedule };