package server

import (
	"fmt"
	"net/http"
	"strconv"
	"time"

	"github.com/gin-gonic/gin"
	"kra/internal/biz"
	"kra/internal/service"
)

type versionMenuRequest struct {
	Path      string `json:"path"`
	Name      string `json:"name"`
	Hidden    bool   `json:"hidden"`
	Component string `json:"component"`
	Sort      int    `json:"sort"`
	Meta      struct {
		ActiveName     string `json:"activeName"`
		KeepAlive      bool   `json:"keepAlive"`
		DefaultMenu    bool   `json:"defaultMenu"`
		Title          string `json:"title"`
		Icon           string `json:"icon"`
		CloseTab       bool   `json:"closeTab"`
		TransitionType string `json:"transitionType"`
	} `json:"meta"`
	MenuButtons []struct {
		Name string `json:"name"`
		Desc string `json:"desc"`
	} `json:"menuBtn"`
	Children []versionMenuRequest `json:"children"`
}

func versionMenuDomain(v versionMenuRequest) *biz.Menu {
	m := &biz.Menu{Path: v.Path, Name: v.Name, Hidden: v.Hidden, Component: v.Component, Sort: v.Sort, ActiveName: v.Meta.ActiveName, KeepAlive: v.Meta.KeepAlive, DefaultMenu: v.Meta.DefaultMenu, Title: v.Meta.Title, Icon: v.Meta.Icon, CloseTab: v.Meta.CloseTab, TransitionType: v.Meta.TransitionType}
	for _, b := range v.MenuButtons {
		m.Buttons = append(m.Buttons, &biz.MenuButton{Name: b.Name, Description: b.Desc})
	}
	for _, child := range v.Children {
		m.Children = append(m.Children, versionMenuDomain(child))
	}
	return m
}
func registerVersionRoutes(group *gin.RouterGroup, svc *service.VersionService) {
	router := group.Group("/sysVersion")
	router.DELETE("/deleteSysVersion", func(c *gin.Context) {
		id, _ := strconv.ParseUint(c.Query("ID"), 10, 64)
		if err := svc.DeleteVersions(c.Request.Context(), []uint{uint(id)}); err != nil {
			fail(c, "删除失败")
			return
		}
		ok(c)
	})
	router.DELETE("/deleteSysVersionByIds", func(c *gin.Context) {
		raw := c.QueryArray("IDs[]")
		ids := make([]uint, 0, len(raw))
		for _, v := range raw {
			id, _ := strconv.ParseUint(v, 10, 64)
			ids = append(ids, uint(id))
		}
		if err := svc.DeleteVersions(c.Request.Context(), ids); err != nil {
			fail(c, "删除失败")
			return
		}
		ok(c)
	})
	router.GET("/findSysVersion", func(c *gin.Context) {
		id, _ := strconv.ParseUint(c.Query("ID"), 10, 64)
		item, err := svc.Version(c.Request.Context(), uint(id))
		if err != nil {
			fail(c, "查询失败")
			return
		}
		writeResult(c, codeSuccess, item, "查询成功")
	})
	router.GET("/getSysVersionList", func(c *gin.Context) {
		page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
		size, _ := strconv.Atoi(c.DefaultQuery("pageSize", "10"))
		items, total, err := svc.Versions(c.Request.Context(), page, size, c.Query("versionName"), c.Query("versionCode"))
		if err != nil {
			fail(c, "获取失败")
			return
		}
		writeResult(c, codeSuccess, pageResult{List: items, Total: total, Page: page, PageSize: size}, "获取成功")
	})
	router.POST("/exportVersion", func(c *gin.Context) {
		var req struct {
			VersionName string `json:"versionName"`
			VersionCode string `json:"versionCode"`
			Description string `json:"description"`
			MenuIDs     []uint `json:"menuIds"`
			APIIDs      []uint `json:"apiIds"`
			DictIDs     []uint `json:"dictIds"`
		}
		if c.ShouldBindJSON(&req) != nil || req.VersionName == "" || req.VersionCode == "" {
			fail(c, "参数错误")
			return
		}
		if err := svc.Export(c.Request.Context(), req.VersionName, req.VersionCode, req.Description, req.MenuIDs, req.APIIDs, req.DictIDs); err != nil {
			fail(c, "创建发版失败:"+err.Error())
			return
		}
		ok(c)
	})
	router.GET("/downloadVersionJson", func(c *gin.Context) {
		id, _ := strconv.ParseUint(c.Query("ID"), 10, 64)
		raw, code, err := svc.VersionData(c.Request.Context(), uint(id))
		if err != nil {
			fail(c, "下载失败")
			return
		}
		name := fmt.Sprintf("version_%s_%s.json", code, time.Now().Format("20060102150405"))
		c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=%s", name))
		c.Data(http.StatusOK, "application/json; charset=utf-8", []byte(raw))
	})
	router.POST("/importVersion", func(c *gin.Context) {
		var req struct {
			Version struct {
				Name        string `json:"name"`
				Code        string `json:"code"`
				Description string `json:"description"`
				ExportTime  string `json:"exportTime"`
			} `json:"version"`
			Menus []versionMenuRequest `json:"menus"`
			APIs  []struct {
				Path        string `json:"path"`
				Description string `json:"description"`
				APIGroup    string `json:"apiGroup"`
				Method      string `json:"method"`
			} `json:"apis"`
			Dictionaries []struct {
				Name    string          `json:"name"`
				Type    string          `json:"type"`
				Status  bool            `json:"status"`
				Desc    string          `json:"desc"`
				Details []detailRequest `json:"sysDictionaryDetails"`
			} `json:"dictionaries"`
		}
		if c.ShouldBindJSON(&req) != nil {
			fail(c, "参数错误")
			return
		}
		bundle := &biz.VersionBundle{Name: req.Version.Name, Code: req.Version.Code, Description: req.Version.Description, ExportTime: req.Version.ExportTime}
		for _, m := range req.Menus {
			bundle.Menus = append(bundle.Menus, versionMenuDomain(m))
		}
		for _, a := range req.APIs {
			bundle.APIs = append(bundle.APIs, &biz.API{Path: a.Path, Description: a.Description, APIGroup: a.APIGroup, Method: a.Method})
		}
		for _, d := range req.Dictionaries {
			dictionary := &biz.Dictionary{Name: d.Name, Type: d.Type, Status: d.Status, Desc: d.Desc}
			for _, detail := range d.Details {
				dictionary.Details = append(dictionary.Details, detailDomain(detail))
			}
			bundle.Dictionaries = append(bundle.Dictionaries, dictionary)
		}
		if err := svc.Import(c.Request.Context(), bundle); err != nil {
			fail(c, "导入失败:"+err.Error())
			return
		}
		ok(c)
	})
}