package handler

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

	"kra/internal/server/httpx"
	"kra/internal/service"
	"kra/internal/service/dto"

	"github.com/gin-gonic/gin"
)

type Version struct{ service *service.VersionService }

func NewVersion(service *service.VersionService) *Version { return &Version{service: service} }

func (h *Version) Delete(c *gin.Context) {
	id, _ := strconv.ParseUint(c.Query("ID"), 10, 64)
	if err := h.service.DeleteVersions(c.Request.Context(), []uint{uint(id)}); err != nil {
		httpx.Fail(c, "删除失败")
		return
	}
	httpx.Write(c, httpx.CodeSuccess, gin.H{}, "删除成功")
}
func (h *Version) DeleteMany(c *gin.Context) {
	raw := c.QueryArray("IDs[]")
	ids := make([]uint, 0, len(raw))
	for _, value := range raw {
		id, _ := strconv.ParseUint(value, 10, 64)
		ids = append(ids, uint(id))
	}
	if err := h.service.DeleteVersions(c.Request.Context(), ids); err != nil {
		httpx.Fail(c, "删除失败")
		return
	}
	httpx.Write(c, httpx.CodeSuccess, gin.H{}, "批量删除成功")
}
func (h *Version) Find(c *gin.Context) {
	id, _ := strconv.ParseUint(c.Query("ID"), 10, 64)
	item, err := h.service.Version(c.Request.Context(), uint(id))
	if err != nil {
		httpx.Fail(c, "查询失败")
		return
	}
	httpx.OKWithData(c, item)
}
func (h *Version) List(c *gin.Context) {
	p, size := page(c)
	createdAtRange := make([]*time.Time, 0, 2)
	for _, raw := range c.QueryArray("createdAtRange[]") {
		value, parseErr := parseTime(raw)
		if parseErr != nil {
			httpx.Fail(c, parseErr.Error())
			return
		}
		createdAtRange = append(createdAtRange, value)
	}
	items, total, err := h.service.Versions(c.Request.Context(), p, size, c.Query("versionName"), c.Query("versionCode"), createdAtRange)
	if err != nil {
		httpx.Fail(c, "获取失败")
		return
	}
	httpx.Write(c, httpx.CodeSuccess, httpx.PageResult{List: items, Total: total, Page: p, PageSize: size}, "获取成功")
}
func (h *Version) Export(c *gin.Context) {
	var req dto.ExportVersionRequest
	if c.ShouldBindJSON(&req) != nil || req.VersionName == "" || req.VersionCode == "" {
		httpx.Fail(c, "参数错误")
		return
	}
	if err := h.service.Export(c.Request.Context(), req.VersionName, req.VersionCode, req.Description, req.MenuIDs, req.APIIDs, req.DictIDs); err != nil {
		httpx.Fail(c, "创建发版失败:"+err.Error())
		return
	}
	httpx.Write(c, httpx.CodeSuccess, gin.H{}, "创建发版成功")
}
func (h *Version) Download(c *gin.Context) {
	id, _ := strconv.ParseUint(c.Query("ID"), 10, 64)
	raw, code, err := h.service.VersionData(c.Request.Context(), uint(id))
	if err != nil {
		httpx.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))
}
func (h *Version) Import(c *gin.Context) {
	var req dto.ImportVersionRequest
	if c.ShouldBindJSON(&req) != nil {
		httpx.Fail(c, "参数错误")
		return
	}
	if err := h.service.ImportRequest(c.Request.Context(), &req); err != nil {
		httpx.Fail(c, "导入失败:"+err.Error())
		return
	}
	httpx.Write(c, httpx.CodeSuccess, gin.H{}, "导入成功")
}