package admin

import (
	"errors"
	"net/http"
	"strconv"

	"github.com/gin-gonic/gin"
	"github.com/metarare/metarare_api/common"
	"github.com/metarare/metarare_api/helpers/gauth"
	"github.com/metarare/metarare_api/helpers/gerror"
	"github.com/metarare/metarare_api/models"
	"gorm.io/gorm"
)

type AdminSettingV1Router struct {
	group *gin.RouterGroup
	mDB   *gorm.DB
	rDB   *gorm.DB
}

func NewAdminSettingV1Router(r common.Router, basePath string) AdminSettingV1Router {
	s := AdminSettingV1Router{
		group: r.Version.Group(basePath),
		mDB:   r.Db.MasterDB,
		rDB:   r.Db.ReadDB,
	}

	s.group.GET("", s.getSettingList)
	s.group.PATCH(":type", s.updateSetting)

	return s
}

// getSettingList godoc
// @Summary get setting list
// @Description 현재 셋팅 값 가져오기
// @Schemes
// @security ApiKeyAuth
// @Tags admin
// @Accept  json
// @Produce json
// @Success 200 {object} models.Setting
// @Router /admin/setting [get]
func (s AdminSettingV1Router) getSettingList(c *gin.Context) {
	admin, err := gauth.ConfirmAdminInfo(c, s.rDB)
	if err != nil || admin.ID == 0 {
		gerror.IntegratedResponseToRequest(c, http.StatusUnauthorized, gerror.Unauthorized, nil, err)
		return
	}

	if admin.AdminPermission.System == 0 {
		gerror.IntegratedResponseToRequest(c, http.StatusUnauthorized, gerror.PermissionNotFound, nil, err)
		return
	}

	response := models.Setting{}
	if err := s.rDB.Find(&response).Error; err != nil {
		gerror.IntegratedResponseToRequest(c, http.StatusInternalServerError, gerror.InvalidParameterValue, nil, err)
		return
	}

	gerror.IntegratedResponseToRequest(c, http.StatusOK, gerror.OK, response, nil)
	return
}

// updateSetting godoc
// @Summary update setting value
// @Description 설정 값 변경
// @Schemes
// @security ApiKeyAuth
// @Tags admin
// @Accept  json
// @Produce json
// @Param SettingData body SettingData true "selected target data"
// @Param type path string true "type: commission, special_collection, gas_deposit"
// @Success 200 {string} OK
// @Router /admin/setting/{type} [patch]
func (s AdminSettingV1Router) updateSetting(c *gin.Context) {
	admin, err := gauth.ConfirmAdminInfo(c, s.rDB)
	if err != nil || admin.ID == 0 {
		gerror.IntegratedResponseToRequest(c, http.StatusUnauthorized, gerror.Unauthorized, nil, err)
		return
	}

	if admin.AdminPermission.System == 0 {
		gerror.IntegratedResponseToRequest(c, http.StatusUnauthorized, gerror.PermissionNotFound, nil, err)
		return
	}

	_type := c.Param("type")
	if _type == "" {
		gerror.IntegratedResponseToRequest(c, http.StatusBadRequest, gerror.InvalidParameterValue, nil, errors.New("invalid parameter value"))
		return
	}

	request := SettingData{}
	if err := c.ShouldBindJSON(&request); err != nil {
		gerror.IntegratedResponseToRequest(c, http.StatusBadRequest, gerror.InvalidParameterValue, nil, err)
		return
	}

	setting := models.Setting{}
	if err := s.rDB.Find(&setting).Error; err != nil {
		gerror.IntegratedResponseToRequest(c, http.StatusInternalServerError, gerror.InvalidParameterValue, nil, err)
		return
	}

	tx := s.mDB.Begin()
	defer common.DBTransaction(tx)

	//SECTION admin log
	log := Log{
		DB:            tx,
		ActionType:    "system",
		SubActionType: "modified",
		Admin:         admin,
		From:          "",
		To:            "",
		Target:        _type,
	}

	if _type == "special_collection" {
		log.From = setting.SpecialCollection
		log.To = request.SpecialCollection
		setting.SpecialCollection = request.SpecialCollection
	} else if _type == "commission" {
		log.From = strconv.FormatFloat(setting.Commission, 'f', -1, 64)
		log.To = strconv.FormatFloat(request.Commission, 'f', -1, 64)
		setting.Commission = request.Commission
	} else if _type == "gas_deposit" {
		log.From = strconv.FormatFloat(setting.GasDeposit, 'f', -1, 64)
		log.To = strconv.FormatFloat(request.GasDeposit, 'f', -1, 64)
		setting.GasDeposit = request.GasDeposit
	}

	if err := s.mDB.Save(&setting).Error; err != nil {
		gerror.IntegratedResponseToRequest(c, http.StatusBadRequest, gerror.MysqlSaveError, nil, err)
		return
	}

	if err = StackLog(log); err != nil {
		gerror.IntegratedResponseToRequest(c, http.StatusInternalServerError, gerror.LogTrackingError, nil, err)
		tx.Rollback()
		return
	}

	if err := tx.Commit().Error; err != nil {
		gerror.IntegratedResponseToRequest(c, http.StatusInternalServerError, gerror.MysqlSaveError, nil, err)
		tx.Rollback()
		return
	}

	gerror.IntegratedResponseToRequest(c, http.StatusOK, gerror.OK, nil, err)
	return
}