package region

import (
	"github.com/gin-gonic/gin"
	"github.com/jinzhu/gorm"
	"recook/internal/back"
	"recook/internal/dbc"
	"recook/internal/define"
	"recook/internal/model/region"
	"recook/internal/v2/lib/tianqiapi"
	"recook/tools"
	"strings"
)

type Province struct {
	region.Information
	Cities []City `json:"cities"`
}

type City struct {
	region.Information
	Districts []District `json:"districts"`
}

type District struct {
	region.Information
}

var cacheProvinces []region.Information
var cacheAllRegion []Province

/*
只获取省份
*/
func Provinces(c *gin.Context) {
	if len(cacheProvinces) > 0 {
		back.Suc(c, "操作成功", cacheProvinces)
		return
	}

	var r []region.Information
	err := dbc.DB.Find(&r, "parent_id=?", 0).Error
	if err != nil {
		if gorm.IsRecordNotFoundError(err) {
			panic("数据库未配置省市区信息")
		} else {
			back.Err(c, err.Error())
		}
		return
	}

	cacheProvinces = r

	back.Suc(c, "操作成功", r)
}

func All(c *gin.Context) {
	if len(cacheAllRegion) > 0 {
		back.Suc(c, "操作成功", &cacheAllRegion)
		return
	}

	name := (&region.Information{}).TableName()
	var r []Province

	// 找到省份
	err := dbc.DB.Table(name).Find(&r, "parent_id=? AND depth=?", 0, define.RegionLevelProvince).Error
	if err != nil {
		back.Err(c, err.Error())
		return
	}

	// 找到市
	for i1, v1 := range r {
		err = dbc.DB.Table(name).Find(&(r[i1].Cities), "parent_id=? AND depth=?", v1.ID, define.RegionLevelCity).Error
		if err != nil {
			back.Err(c, err.Error())
			return
		}
		// 找到区
		for i2, v2 := range r[i1].Cities {
			err = dbc.DB.Table(name).Find(&(r[i1].Cities[i2].Districts), "parent_id=? AND depth=?", v2.ID, define.RegionLevelDistrict).Error
			if err != nil {
				back.Err(c, err.Error())
				return
			}
		}
	}

	cacheAllRegion = r
	back.Suc(c, "操作成功", &r)
}

type argsWeather struct {
	CityId string `json:"cityId" form:"cityId"`
	CityZh string `json:"cityZh" form:"cityZh"`
	City   string `json:"city" form:"city"`
}

// @Style 获取天气
func Weather(c *gin.Context) {
	var p argsWeather
	if err := tools.ParseParams(&p, c); err != nil {
		back.Fail(c, err.Error())
		return
	}
	if p.CityId != "" {
		result, err := tianqiapi.TianqiApi.CityId(p.CityId)
		if err != nil {
			back.Fail(c, err.Error())
			return
		}
		back.Suc(c, "操作成功", result)
		return
	} else if p.CityZh != "" {
		result, err := tianqiapi.TianqiApi.City(p.CityZh)
		if err != nil {
			back.Fail(c, err.Error())
			return
		}
		back.Suc(c, "操作成功", result)
		return
	} else if p.City != "" {
		result, err := tianqiapi.TianqiApi.City(strings.ReplaceAll(p.CityZh, "区", ""))
		if err != nil {
			back.Fail(c, err.Error())
			return
		}
		back.Suc(c, "操作成功", result)
		return
	}
	back.Fail(c, "参数错误")
	return
}