package controllers

import (
	"server/services"

	beego "github.com/beego/beego/v2/server/web"
)

// BackendTenantQuotaController 租户端「用户数配额」信息（只读）
// 供租户端用户管理页展示「已用/上限」；增购由平台端操作。
type BackendTenantQuotaController struct {
	beego.Controller
}

// GetQuotaInfo GET /backend/tenant/quotaInfo
// 返回当前登录租户的用户数使用情况与生效套餐。
func (c *BackendTenantQuotaController) GetQuotaInfo() {
	tid := backendJWTTenantID(c.Ctx.Request.Header.Get("Authorization"))
	if tid == 0 {
		// 兜底：从 tid 参数取（部分历史调用未带 token 场景）
		if v, err := c.GetUint64("tid"); err == nil {
			tid = v
		}
	}
	if tid == 0 {
		c.Data["json"] = map[string]interface{}{"code": 401, "msg": "未登录或非法请求"}
		_ = c.ServeJSON()
		return
	}

	info, err := services.GetTenantQuotaInfo(tid)
	if err != nil {
		c.Data["json"] = map[string]interface{}{"code": 404, "msg": "租户不存在"}
		_ = c.ServeJSON()
		return
	}

	modules, _ := services.GetTenantPackageModules(tid)
	moduleCodes := make([]string, 0, len(modules))
	moduleNames := make([]string, 0, len(modules))
	for _, m := range modules {
		moduleCodes = append(moduleCodes, m.ModuleCode)
		moduleNames = append(moduleNames, m.ModuleName)
	}

	c.Data["json"] = map[string]interface{}{
		"code": 200,
		"msg":  "success",
		"data": map[string]interface{}{
			"tid":                 info.Tid,
			"package_id":          info.EffectivePackageID,
			"package_name":        info.PackageName,
			"quota":               info.Quota,
			"used":                info.Used,
			"remaining":           info.Remaining,
			"extra_user_price":    info.ExtraUserPrice,
			"duration_days":       info.DurationDays,
			"package_expire_time": info.PackageExpireTime,
			"days_remaining":      info.DaysRemaining,
			"module_codes":        moduleCodes,
			"module_names":        moduleNames,
		},
	}
	_ = c.ServeJSON()
}