// 功能描述：向用户本人提供供气订单的配送人员、配送点、资质与交付状态；版本：1.0.0。
package user

import (
	"time"

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

// GetGasOrderDelivery 先按当前用户限定订单，再读取关联履约事实；不下发员工手机号或内部账号。
func GetGasOrderDelivery(ctx *gin.Context) {
	account, ok := common.UserAccount(ctx)
	if !ok {
		return
	}
	var order models.GasorderBasic
	if err := impl.DBService.Where("identity = ? AND user_account_id = ? AND status <> ?", ctx.Param("identity"), account.ID, common.StatusArchived).First(&order).Error; err != nil {
		gasDetailError(ctx, err)
		return
	}
	var station models.GasBasic
	if order.GasBasicID != 0 {
		if err := impl.DBService.Where("id = ? AND status = ?", order.GasBasicID, common.StatusEnable).Find(&station).Error; err != nil {
			gasDetailError(ctx, err)
			return
		}
	}
	var delivery models.DeliveryBasic
	if order.DeliveryBasicID != 0 {
		if err := impl.DBService.Where("id = ? AND status = ?", order.DeliveryBasicID, common.StatusEnable).Find(&delivery).Error; err != nil {
			gasDetailError(ctx, err)
			return
		}
	}
	var staff models.StaffAccount
	if order.StaffAccountID != 0 {
		if err := impl.DBService.Where("id = ? AND role_code = ? AND status = ?", order.StaffAccountID, "delivery", common.StatusEnable).Find(&staff).Error; err != nil {
			gasDetailError(ctx, err)
			return
		}
	}
	var credential models.StaffCredential
	if staff.ID != 0 {
		if err := impl.DBService.Where("staff_account_id = ? AND status = ? AND (expired_at IS NULL OR expired_at > ?)", staff.ID, common.StatusEnable, time.Now()).Order("expired_at desc nulls first, id desc").Limit(1).Find(&credential).Error; err != nil {
			gasDetailError(ctx, err)
			return
		}
	}
	var track models.GasorderTrack
	if err := impl.DBService.Where("gasorder_basic_id = ? AND status <> ?", order.ID, common.StatusArchived).Order("attempt_no desc, id desc").Limit(1).Find(&track).Error; err != nil {
		gasDetailError(ctx, err)
		return
	}
	var items []models.GasorderItem
	if err := impl.DBService.Where("gasorder_basic_id = ?", order.ID).Order("created_at, id").Find(&items).Error; err != nil {
		gasDetailError(ctx, err)
		return
	}
	products := make([]gin.H, 0, len(items))
	for _, item := range items {
		products = append(products, gin.H{"name": item.ProductTypeName, "quantity": 1})
	}
	response := gin.H{
		"identity": order.Identity, "order_no": order.OrderNo, "status_code": order.OrderStatus,
		"status_name": gasOrderStatusName(order.OrderStatus), "status_message": deliveryStatusMessage(order.OrderStatus),
		"appointment_at": order.AppointmentAt, "address": order.Address, "contact_name": order.ContactName,
		"contact_phone_masked": common.MaskPhone(order.ContactPhone), "station_name": station.Name,
		"delivery_name": delivery.Name, "delivery_address": delivery.Address, "staff_name": staff.Name,
		"staff_avatar":   "",
		"staff_assigned": staff.ID != 0, "staff_avatar_available": staff.Avatar != "",
		"credential_verified": credential.ID != 0, "credential_type": credential.CredentialType,
		"track_available": track.ID != 0, "track_started_at": nullableTrackTime(track.ID != 0, track.StartedAt),
		"track_updated_at": nullableTrackTime(track.ID != 0, track.UpdatedAt), "products": products,
		"controlled_call_available": false, "message_available": false, "vehicle_configured": false,
	}
	infra.Response.Success(ctx, response)
}

// deliveryStatusMessage 只解释已有订单状态，不推断实时位置或预计到达时间。
func deliveryStatusMessage(status int) string {
	switch status {
	case 18, 19, 20, 35:
		return "订单正在准备配送"
	case 33:
		return "配送员正在履约，请留意订单状态更新"
	case 34:
		return "商品已到达，请核对后确认签收"
	case 23:
		return "本次配送已完成"
	case 21:
		return "配送出现异常，请联系平台处理"
	default:
		return "当前订单尚未进入配送阶段"
	}
}

func nullableTrackTime(available bool, value time.Time) any {
	if !available || value.IsZero() {
		return nil
	}
	return value
}