package controller

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

	"ezops/model"
	"ezops/pkg/billingsync"

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

// syncBillingRequest 同步账单请求（可选指定账号） // Logan.Li
type syncBillingRequest struct {
	AccountID *uint  `json:"account_id"`
	Date      string `json:"date"` // YYYY-MM-DD，默认昨日
}

// SyncYesterdayBillings 从云账号 AK 同步指定日期（默认昨日）账单 // Logan.Li
// POST /cloud-billings/sync
func (h *BillingHandler) SyncYesterdayBillings(c *gin.Context) {
	var req syncBillingRequest
	_ = c.ShouldBindJSON(&req)

	billingDate := req.Date
	if billingDate == "" {
		billingDate = billingsync.Yesterday()
	}
	if len(billingDate) != 10 {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "date 格式应为 YYYY-MM-DD"})
		return
	}

	result := billingsync.SyncDate(h.db, billingDate, req.AccountID)
	if result.Accounts == 0 {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "没有可同步的活跃云账号，请先在云账号管理中添加 AK"})
		return
	}

	msg := fmt.Sprintf("同步完成：新增 %d 条，更新 %d 条", result.Created, result.Updated)
	if len(result.Errors) > 0 {
		msg += fmt.Sprintf("，%d 个账号失败", len(result.Errors))
	}

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: msg,
		Data:    result,
	})
}

// SyncAccountBilling 同步单个云账号账单
// POST /cloud-accounts/:id/sync-billing
func (h *BillingHandler) SyncAccountBilling(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))
	if id <= 0 {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "无效账号 ID"})
		return
	}

	var req struct {
		Date string `json:"date"`
	}
	_ = c.ShouldBindJSON(&req)

	billingDate := req.Date
	if billingDate == "" {
		billingDate = billingsync.Yesterday()
	}

	uid := uint(id)
	result := billingsync.SyncDate(h.db, billingDate, &uid)
	if result.Accounts == 0 {
		c.JSON(http.StatusNotFound, model.Response{Code: 404, Message: "云账号不存在或未激活"})
		return
	}

	msg := fmt.Sprintf("同步完成：新增 %d 条，更新 %d 条", result.Created, result.Updated)
	if len(result.Errors) > 0 {
		msg = "同步失败: " + result.Errors[0]
	}

	c.JSON(http.StatusOK, model.Response{Code: 200, Message: msg, Data: result})
}