package controller

import (
	"SciencesServer/app/api/admin/model"
	"SciencesServer/app/basic/controller"
	model2 "SciencesServer/app/common/model"
	"SciencesServer/config"
	"SciencesServer/serve/orm"
	"errors"
	"fmt"
	"time"

	"gorm.io/gorm"
)

type Config struct{}

type ConfigHandle func() *Config

func (c *Config) Config(kind, page, pageSize int) (*controller.ReturnPages, error) {
	mSysConfig := model.NewSysConfig()

	where := []*model2.ModelWhereOrder{
		&model2.ModelWhereOrder{Order: model2.NewOrder("kind", model2.OrderModeToAsc)},
	}
	if kind > 0 {
		where = append(where, &model2.ModelWhereOrder{Where: model2.NewWhere("kind", kind)})
	}
	out := make([]*model2.SysConfig, 0)

	var count int64

	if err := model2.Pages(mSysConfig.SysConfig, &out, page, pageSize, &count, where...); err != nil {
		return nil, err
	}
	return &controller.ReturnPages{Data: out, Count: count}, nil
}

func (c *Config) Add(kind int, name, key string, value interface{}) error {
	mSysConfig := model.NewSysConfig()

	var count int64

	err := model2.Count(mSysConfig.SysConfig, &count, model2.NewWhere("key", key))

	if err != nil {
		return err
	} else if count > 0 {
		return errors.New("key已存在")
	}
	mSysConfig.Kind = model2.SysConfigKind(kind)
	mSysConfig.Name = name
	mSysConfig.Key = key
	mSysConfig.Value = fmt.Sprintf("%v", value)

	if err = model2.Create(mSysConfig.SysConfig); err != nil {
		return err
	}
	config.SystemConfig[key] = value

	return nil
}

func (c *Config) Form(params map[string]interface{}) error {
	if len(params) <= 0 {
		return nil
	}
	return orm.GetDB().Transaction(func(tx *gorm.DB) error {
		mSysConfig := model.NewSysConfig()
		now := time.Now()

		for k, v := range params {
			if _, has := config.SystemConfig[k]; !has {
				return errors.New("UnKnown Config Key ：" + k)
			}
			if err := model2.UpdatesWhere(mSysConfig.SysConfig, map[string]interface{}{
				"value": v, "updated_at": now,
			}, []*model2.ModelWhere{model2.NewWhere("key", k)}, tx); err != nil {
				return err
			}
			config.SystemConfig[k] = v
		}
		return nil
	})
}

func NewConfig() ConfigHandle {
	return func() *Config {
		return &Config{}
	}
}