/*
 * Site Info Manage API List
 * /siteInfoManage/manage/update - GET & POST 获取更新状态 & 请求更新站点信息表
 * /siteInfoManage/dataList - POST 站点信息表
 * /siteInfoManage/dataListExport - POST 导出站点信息表
 * /siteInfoManage/siteInfo/query - GET 获取单个站点实时信息（同时更新单个站点数据）
 * /siteInfoManage/operate/enableXlog - POST 使能站点xlog
 */
package controllers

import (
	"bufio"
	"fmt"
	"fwh-toolbox-server/domain"
	"fwh-toolbox-server/dto"
	"fwh-toolbox-server/services"
	"net/url"
	"strings"
	"time"

	"github.com/gofiber/fiber/v2"
	"go.uber.org/zap"
)

// 获取更新状态
// /siteInfoManage/manage/update
func GetSiteInfoUpdateStatus(c *fiber.Ctx) error {
	date, err := services.GetSiteInfoUpdateStatus()
	if err != nil {
		return Error(c, "Site Info date read failed.")
	}
	return Success(c, date)
}

// 请求更新站点信息表
// /siteInfoManage/manage/update
func UpdateSiteInfoDate(c *fiber.Ctx) error {
	err := services.UpdateSiteInfoDate()
	if err != nil {
		return Error(c, "Site Info update failed.")
	}
	return Success[any](c, nil, "Success")
}

// 获取站点信息表
// /siteInfoManage/dataList
func QuerySiteInfoDataList(c *fiber.Ctx) error {
	var body dto.SiteInfoRequest
	if err := c.BodyParser(&body); err != nil {
		zap.L().Warn("Invalid request body", zap.String("err", err.Error()))
		return Fail(c, "Invalid request body")
	}

	data, err := services.QuerySiteInfoDataList(body)
	if err != nil {
		return Error(c, err.Error())
	}
	return Success[*dto.ResPage[dto.SiteInfoDTO]](c, data, "Success")
}

// dataListExport
// /siteInfoManage/dataListExport
func ExportSiteInfoDataList(c *fiber.Ctx) error {
	var body struct {
		Filter *domain.SiteInfoFilter `json:"filter"`
	}
	if err := c.BodyParser(&body); err != nil {
		zap.L().Warn("Invalid request body", zap.String("err", err.Error()))
		return Fail(c, "Invalid request body")
	}

	// 导出excel文件
	f, err := services.ExportSiteInfoDataList(body.Filter)
	if err != nil {
		zap.L().Warn("File export failed", zap.String("err", err.Error()))
		return Fail(c, "File export failed")
	}

	fileName := fmt.Sprintf("LMT站点管理表_%s.xlsx", strings.Replace(time.Now().Format(time.DateOnly), "-", "_", -1))
	encoded := url.QueryEscape(fileName)
	c.Set("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
	c.Set("Content-Disposition", fmt.Sprintf("attachment; filename=%s; filename*=UTF-8''%s", encoded, encoded))

	// Fiber 原生 Context 的 BodyWriter，可直接写数据到 HTTP 输出
	// writer := c.Context().Response.BodyWriter()

	// 使用 SetBodyStreamWriter 流式写入
	c.Context().SetBodyStreamWriter(func(w *bufio.Writer) {
		f.Write(w)
		w.Flush()

		if err := f.Close(); err != nil {
			zap.L().Error("Excel 文件close失败", zap.String("err", err.Error()))
		}
	})

	// return Success[any](c, nil, "Success")
	return nil
}

// 查询单个站点实时信息（同时更新单个站点数据）
// /siteInfoManage/siteInfo/query
func GetSiteInfoData(c *fiber.Ctx) error {
	sn := c.Query("sn")

	if len(sn) == 0 {
		zap.L().Warn("Invalid request param", zap.String("sn", sn))
		return Fail(c, "Invalid request param")
	}

	data, err := services.GetSiteInfoData(sn)
	if err != nil {
		return Error(c, err.Error())
	}
	return Success[*dto.SiteInfoDTO](c, data, "Success")
}

// 使能站点xlog
// /siteInfoManage/operate/enableXlog
func OperateSiteInfoEnableXlog(c *fiber.Ctx) error {
	var body string
	if err := c.BodyParser(&body); err != nil {
		zap.L().Warn("Invalid request body", zap.String("err", err.Error()))
		return Fail(c, "Invalid request body")
	}

	data, err := services.OperateSiteInfoEnableXlog(c.UserContext(), body)
	if err != nil {
		return Error(c, err.Error())
	}
	return Success[string](c, data, "Success")
}