package app

import (
	"context"
	"fmt"
	"strings"
	"git.5iot.com/iotlcm-public/iotlcm-app/internal/consts"
	"git.5iot.com/iotlcm-public/iotlcm-app/internal/dao"
	"git.5iot.com/iotlcm-public/iotlcm-app/internal/model"
	"git.5iot.com/iotlcm-public/iotlcm-app/internal/model/do"
	"git.5iot.com/iotlcm-public/iotlcm-app/internal/model/entity"

	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/errors/gerror"
)

func warningPreferenceKey(userID int64) string {
	return fmt.Sprintf("app.wechat.warning.enabled.%d", userID)
}

func (s *sAppUser) WarningPreference(ctx context.Context) (*model.AppWarningPreferenceModel, error) {
	user, err := appCurrentUser(ctx)
	if err != nil {
		return nil, err
	}
	var config *entity.SysConfig
	err = dao.SysConfig.Ctx(ctx).Where("tenant_id", user.TenantId).Where("config_key", warningPreferenceKey(user.UserId)).OrderDesc("config_id").Scan(&config)
	if err != nil {
		return nil, gerror.Wrap(err, "读取消息提醒设置失败")
	}
	bound, _, err := appUserWechatBindingStatus(ctx, user)
	if err != nil {
		return nil, err
	}
	return &model.AppWarningPreferenceModel{Enabled: bound && (config == nil || config.ConfigValue == "1"), WechatBound: bound}, nil
}

func saveWarningPreference(ctx context.Context, tx gdb.TX, user *entity.SysUser, enabled bool) error {
	value := "0"
	if enabled {
		value = "1"
	}
	var config *entity.SysConfig
	if err := dao.SysConfig.Ctx(ctx).TX(tx).Where("tenant_id", user.TenantId).Where("config_key", warningPreferenceKey(user.UserId)).OrderDesc("config_id").Scan(&config); err != nil {
		return gerror.Wrap(err, "读取消息提醒设置失败")
	}
	data := do.SysConfig{ConfigValue: value, UpdatedBy: user.UserId}
	if config != nil {
		_, err := dao.SysConfig.Ctx(ctx).TX(tx).Where("tenant_id", user.TenantId).Where("config_key", warningPreferenceKey(user.UserId)).Data(data).Update()
		return gerror.Wrap(err, "保存消息提醒设置失败")
	}
	data.TenantId = user.TenantId
	data.ConfigKey = warningPreferenceKey(user.UserId)
	data.ConfigName = "小程序用户微信预警提醒偏好"
	data.ConfigType = "N"
	data.CreatedBy = user.UserId
	data.CreatedDept = user.DeptId
	_, err := dao.SysConfig.Ctx(ctx).TX(tx).Data(data).Insert()
	return gerror.Wrap(err, "保存消息提醒设置失败")
}

func (s *sAppUser) SaveWarningPreference(ctx context.Context, param *model.AppWarningPreferenceParam) (*model.AppWarningPreferenceModel, error) {
	if param == nil || param.Enabled == nil {
		return nil, gerror.New("请选择是否开启预警订阅")
	}
	user, err := appCurrentUser(ctx)
	if err != nil {
		return nil, err
	}
	err = dao.SysUser.Transaction(ctx, func(ctx context.Context, tx gdb.TX) error {
		var locked *entity.SysUser
		lockModel := dao.SysUser.Ctx(ctx).TX(tx).WherePri(user.UserId).Where("tenant_id", user.TenantId)
		if dao.SysUser.DB().GetConfig().Type != "sqlite" {
			lockModel = lockModel.LockUpdate()
		}
		if err := lockModel.Scan(&locked); err != nil {
			return err
		}
		if locked == nil {
			return gerror.New("账号不存在")
		}
		if *param.Enabled {
			count, err := dao.SysSocial.Ctx(ctx).TX(tx).Where("tenant_id", user.TenantId).Where("user_id", user.UserId).Where("source", consts.SourceWechatMp).Where("open_id <> ?", "").Count()
			if err != nil {
				return err
			}
			if count == 0 {
				return gerror.New("请先在个人资料中绑定微信")
			}
		}
		return saveWarningPreference(ctx, tx, user, *param.Enabled)
	})
	if err != nil {
		return nil, gerror.Wrap(err, "保存消息提醒设置失败")
	}
	return s.WarningPreference(ctx)
}

func (s *sAppUser) UnbindWechat(ctx context.Context) (*model.AppWechatBindModel, error) {
	user, err := appCurrentUser(ctx)
	if err != nil {
		return nil, err
	}
	if strings.TrimSpace(user.UserName) == "" || strings.TrimSpace(user.Password) == "" {
		return nil, gerror.New("请先设置可用的账号密码，再解除微信绑定")
	}
	err = unbindWechatBindings(ctx, user)
	if err != nil {
		return nil, gerror.Wrap(err, "解除微信绑定失败")
	}
	info, err := getAppUserInfoById(ctx, user.UserId)
	if err != nil {
		return nil, err
	}
	return &model.AppWechatBindModel{Success: true, UserInfo: info}, nil
}

func unbindWechatBindings(ctx context.Context, user *entity.SysUser) error {
	return dao.SysUser.Transaction(ctx, func(ctx context.Context, tx gdb.TX) error {
		var locked *entity.SysUser
		lockModel := dao.SysUser.Ctx(ctx).TX(tx).WherePri(user.UserId).Where("tenant_id", user.TenantId)
		if dao.SysUser.DB().GetConfig().Type != "sqlite" {
			lockModel = lockModel.LockUpdate()
		}
		if err := lockModel.Scan(&locked); err != nil {
			return err
		}
		if locked == nil || strings.TrimSpace(locked.UserName) == "" || strings.TrimSpace(locked.Password) == "" {
			return gerror.New("请先设置可用的账号密码")
		}
		if err := saveWarningPreference(ctx, tx, user, false); err != nil {
			return err
		}
		_, err := dao.SysSocial.Ctx(ctx).TX(tx).Where("tenant_id", user.TenantId).Where("user_id", user.UserId).Where("source", consts.SourceWechatMp).Delete()
		return err
	})
}