package dao

import (
	"errors"
	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"hospital-admin-api/api/model"
	"hospital-admin-api/api/requests"
	"hospital-admin-api/global"
	"strings"
	"time"
)

type UserPatientDao struct {
}

// GetUserPatientById 获取患者数据-患者id
func (r *UserPatientDao) GetUserPatientById(patientId int64) (m *model.UserPatient, err error) {
	err = global.Db.First(&m, patientId).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// GetUserPatientPreloadById 获取患者数据-加载全部关联-患者id
func (r *UserPatientDao) GetUserPatientPreloadById(patientId int64) (m *model.UserPatient, err error) {
	err = global.Db.Preload(clause.Associations).First(&m, patientId).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// DeleteUserPatient 删除患者
func (r *UserPatientDao) DeleteUserPatient(tx *gorm.DB, maps interface{}) error {
	err := tx.Where(maps).Delete(&model.UserPatient{}).Error
	if err != nil {
		return err
	}
	return nil
}

// DeleteUserPatientById 删除患者-患者id
func (r *UserPatientDao) DeleteUserPatientById(tx *gorm.DB, patientId int64) error {
	if err := tx.Delete(&model.UserPatient{}, patientId).Error; err != nil {
		return err
	}
	return nil
}

// EditUserPatient 修改患者
func (r *UserPatientDao) EditUserPatient(tx *gorm.DB, maps interface{}, data interface{}) error {
	err := tx.Model(&model.UserPatient{}).Where(maps).Updates(data).Error
	if err != nil {
		return err
	}
	return nil
}

// EditUserPatientById 修改患者-患者id
func (r *UserPatientDao) EditUserPatientById(tx *gorm.DB, patientId int64, data interface{}) error {
	err := tx.Model(&model.UserPatient{}).Where("patient_id = ?", patientId).Updates(data).Error
	if err != nil {
		return err
	}
	return nil
}

// GetUserPatientList 获取患者列表
func (r *UserPatientDao) GetUserPatientList(maps interface{}) (m []*model.UserPatient, err error) {
	err = global.Db.Where(maps).Find(&m).Error
	if err != nil {
		return nil, err
	}
	return m, nil
}

// GetUserPatientPageSearch 获取患者列表-分页
func (r *UserPatientDao) GetUserPatientPageSearch(req requests.GetUserPatientPage, page, pageSize int) (m []*model.UserPatient, total int64, err error) {
	var totalRecords int64

	// 构建查询条件
	query := global.Db.Model(&model.UserPatient{}).Omit("open_id", "union_id", "wx_session_key")

	// 用户表
	query = query.Preload("User", func(db *gorm.DB) *gorm.DB {
		return db.Omit("user_password", "salt")
	})

	// 家庭成员表
	query = query.Preload("PatientFamily")

	// 手机号
	if req.Mobile != "" {
		subQuery := global.Db.Model(&model.User{}).
			Select("user_id").
			Where("mobile = ?", req.Mobile)

		query = query.Where(gorm.Expr("user_id IN (?)", subQuery))
	}

	// 用户名称-用户-就诊人
	if req.UserName != "" {
		// 用户
		query = query.Where("user_name LIKE ?", "%"+req.UserName+"%")

		// 就诊人
		patientFamilySubQuery := global.Db.Model(&model.PatientFamily{}).
			Select("patient_id").
			Where("card_name LIKE ?", "%"+req.UserName+"%")

		query = query.Or("patient_id IN (?)", patientFamilySubQuery).Or(query)
	}

	// 用户状态
	if req.Status != nil {
		query = query.Where("status = ?", req.Status)
	}

	// 注册时间
	if req.CreatedAt != "" {
		cancelTime := strings.Split(req.CreatedAt, "&")
		if len(cancelTime) == 2 {
			startTime, _ := time.Parse("2006-01-02", cancelTime[0])
			endTime, _ := time.Parse("2006-01-02", cancelTime[1])

			if startTime == endTime {
				endTime = endTime.Add(23*time.Hour + 59*time.Minute + 59*time.Second)
			}

			query = query.Where("created_at BETWEEN ? AND ?", startTime, endTime)
		}
	}

	// 排序
	query = query.Order("created_at desc")

	// 查询总数量
	if err := query.Count(&totalRecords).Error; err != nil {
		return nil, 0, err
	}

	err = query.Scopes(model.Paginate(page, pageSize)).Find(&m).Error
	if err != nil {
		return nil, 0, err
	}

	return m, totalRecords, nil
}

// AddUserPatient 新增患者
func (r *UserPatientDao) AddUserPatient(tx *gorm.DB, model *model.UserPatient) (*model.UserPatient, error) {
	if err := tx.Create(model).Error; err != nil {
		return nil, err
	}
	return model, nil
}

// GetUserPatientExportListSearch 获取患者列表-导出
func (r *UserPatientDao) GetUserPatientExportListSearch(req requests.UserPatientExportList) (m []*model.UserPatient, err error) {
	// 构建查询条件
	query := global.Db.Model(&model.UserPatient{}).Omit("open_id", "union_id", "wx_session_key")

	// 用户表
	query = query.Preload("User", func(db *gorm.DB) *gorm.DB {
		return db.Omit("user_password", "salt")
	})

	// 家庭成员表
	query = query.Preload("PatientFamily")

	// 当前搜索数据
	if req.Type == 1 {
		// 手机号
		if req.Mobile != "" {
			subQuery := global.Db.Model(&model.User{}).
				Select("user_id").
				Where("mobile = ?", req.Mobile)

			query = query.Where(gorm.Expr("user_id IN (?)", subQuery))
		}

		// 用户名称-用户-就诊人
		if req.UserName != "" {
			// 用户
			query = query.Where("user_name LIKE ?", "%"+req.UserName+"%")

			// 就诊人
			patientFamilySubQuery := global.Db.Model(&model.PatientFamily{}).
				Select("patient_id").
				Where("card_name LIKE ?", "%"+req.UserName+"%")

			query = query.Or("patient_id IN (?)", patientFamilySubQuery).Or(query)
		}

		// 用户状态
		if req.Status != nil {
			query = query.Where("status = ?", req.Status)
		}

		// 注册时间
		if req.CreatedAt != "" {
			cancelTime := strings.Split(req.CreatedAt, "&")
			if len(cancelTime) == 2 {
				startTime, _ := time.Parse("2006-01-02", cancelTime[0])
				endTime, _ := time.Parse("2006-01-02", cancelTime[1])

				if startTime == endTime {
					endTime = endTime.Add(23*time.Hour + 59*time.Minute + 59*time.Second)
				}

				query = query.Where("created_at BETWEEN ? AND ?", startTime, endTime)
			}
		}
	}

	// 当前选中数据
	if req.Type == 2 {
		if req.Id == "" {
			return nil, errors.New("未提供需导出数据编号")
		}

		id := strings.Split(req.Id, ",")
		query = query.Where("patient_id IN (?)", id)
	}

	// 排序
	query = query.Order("created_at desc")

	err = query.Find(&m).Error
	if err != nil {
		return nil, err
	}

	return m, nil
}