// 功能描述：充值限额、渠道配置就绪状态及已发布充值协议；版本：1.0.0。
package common

import (
	"os"

	"git.apinb.com/bsm-sdk/core/infra"
	"git.apinb.com/heqiapp/platforms/backend/api/internal/config"
	"git.apinb.com/heqiapp/platforms/backend/api/internal/impl"
	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
)

// rechargeFileReady 仅检查渠道配置文件是否存在，不读取或返回私钥内容。
func rechargeFileReady(path string) bool {
	if path == "" {
		return false
	}
	info, err := os.Stat(path)
	return err == nil && !info.IsDir()
}

// GetRechargeOptions 不提供Mock支付，不将配置存在等同于渠道支付一定成功。
func GetRechargeOptions(client string) gin.HandlerFunc {
	return func(ctx *gin.Context) {
		if _, ok := currentOwner(ctx, client); !ok {
			return
		}
		ali, wx := config.Spec.Payment.Alipay, config.Spec.Payment.Wechat
		alipayReady := ali.Enabled && ali.AppID != "" && ali.NotifyURL != "" &&
			rechargeFileReady(ali.PrivateKeyPath) && rechargeFileReady(ali.AppPublicCertPath) &&
			rechargeFileReady(ali.AlipayPublicCertPath) && rechargeFileReady(ali.AlipayRootCertPath)
		wechatReady := wx.Enabled && wx.MerchantID != "" && wx.MerchantCertificateSerial != "" &&
			len(wx.APIv3Key) == 32 && wx.AppAppID != "" && wx.NotifyURL != "" && rechargeFileReady(wx.MerchantPrivateKeyPath)
		response := gin.H{"min_amount": 1, "max_amount": config.Spec.Global.ManualRechargeMaxAmount,
			"channels": []gin.H{{"channel": "wechat", "app": wechatReady, "wap": false},
				{"channel": "alipay", "app": alipayReady, "wap": alipayReady}}}
		var agreement models.CmsContent
		err := impl.DBService.Where("content_type = ? AND title = ? AND publish_status = ? AND status = ?",
			"agreement", "充值协议", "published", StatusEnable).Order("version_no desc, id desc").First(&agreement).Error
		if err != nil && err != gorm.ErrRecordNotFound {
			infra.Response.Error(ctx, err)
			return
		}
		if err == nil && agreement.Body != "" {
			response["agreement"] = gin.H{"identity": agreement.Identity, "version": agreement.VersionNo, "title": agreement.Title, "body": agreement.Body}
		}
		infra.Response.Success(ctx, response)
	}
}