package web

import (
	"errors"
	"net/http"
	"net/url"
	"time"

	"github.com/gin-gonic/gin"

	"cmautobuy/admin/repository"
	"cmautobuy/admin/service"
)

func (h *Handler) SybAllowedShopList(c *gin.Context) {
	rows, err := service.ListSybAllowedShops(h.db, currentUser(c))
	if err != nil {
		fail(c, http.StatusInternalServerError, "读取顺运宝同步店铺失败，数据没有被改动。刷新后重试。")
		return
	}
	enabled := 0
	for _, row := range rows {
		if row.Enabled {
			enabled++
		}
	}
	c.HTML(http.StatusOK, "syb/shops", page(c, "syb", "顺运宝同步店铺", gin.H{
		"Rows": rows, "EnabledCount": enabled, "Message": c.Query("msg"), "Error": c.Query("error"),
	}))
}

func (h *Handler) SybAllowedShopCreate(c *gin.Context) {
	err := service.CreateSybAllowedShop(h.db, currentUser(c), c.PostForm("shop_name"), time.Now())
	if err != nil {
		if service.IsValidationError(err) || errors.Is(err, repository.ErrSybAllowedShopExists) {
			redirectSybShops(c, "", err.Error())
			return
		}
		fail(c, http.StatusInternalServerError, "新增同步店铺失败，已有店铺没有被改动。")
		return
	}
	redirectSybShops(c, "店铺已加入允许列表并启用", "")
}

func (h *Handler) SybAllowedShopStatus(c *gin.Context) {
	enabled := c.PostForm("enabled") == "1"
	err := service.SetSybAllowedShopEnabled(h.db, currentUser(c), c.PostForm("shop_id"), enabled, time.Now())
	if err != nil {
		if service.IsValidationError(err) {
			redirectSybShops(c, "", err.Error())
			return
		}
		fail(c, http.StatusInternalServerError, "更新同步店铺失败，原状态保持不变。")
		return
	}
	message := "店铺已停用，后续同步会跳过该店铺"
	if enabled {
		message = "店铺已重新启用"
	}
	redirectSybShops(c, message, "")
}

func (h *Handler) SybAllowedShopDelete(c *gin.Context) {
	err := service.DeleteDisabledSybAllowedShop(h.db, currentUser(c), c.PostForm("shop_id"))
	if err != nil {
		if service.IsValidationError(err) {
			redirectSybShops(c, "", err.Error())
			return
		}
		fail(c, http.StatusInternalServerError, "删除同步店铺失败，已有配置和历史货运单没有被改动。")
		return
	}
	redirectSybShops(c, "已删除停用店铺；历史货运单和同步记录保持不变", "")
}

func redirectSybShops(c *gin.Context, message, errorMessage string) {
	values := url.Values{}
	if message != "" {
		values.Set("msg", message)
	}
	if errorMessage != "" {
		values.Set("error", errorMessage)
	}
	target := "/syb/shops"
	if encoded := values.Encode(); encoded != "" {
		target += "?" + encoded
	}
	c.Redirect(http.StatusSeeOther, target)
}