package user

import (
	"strings"
	"time"

	"git.apinb.com/bsm-sdk/core/errcode"
	"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"
)

// PublicGasStations 提供注册页所需的最小启用气站数据。
func PublicGasStations(ctx *gin.Context) {
	var list []models.GasBasic
	if err := impl.DBService.Select("identity", "name", "address").Where("status = ?", common.StatusEnable).Order("name").Find(&list).Error; err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	infra.Response.Success(ctx, common.ResourceResponse(list))
}

// PublicDeliveryPoints 提供指定气站下的启用配送点。
func PublicDeliveryPoints(ctx *gin.Context) {
	var gas models.GasBasic
	if impl.DBService.Where("identity = ? AND status = ?", ctx.Query("gas_identity"), common.StatusEnable).First(&gas).Error != nil {
		infra.Response.Error(ctx, errcode.ErrRecordNotFound)
		return
	}
	var list []models.DeliveryBasic
	if err := impl.DBService.Select("identity", "name", "address").Where("gas_basic_id = ? AND status = ?", gas.ID, common.StatusEnable).Order("name").Find(&list).Error; err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	infra.Response.Success(ctx, common.ResourceResponse(list))
}

// PublicContents 返回已发布内容，支持内容类型筛选。
func PublicContents(ctx *gin.Context) {
	query := impl.DBService.Where("status = ? AND publish_status = ?", common.StatusEnable, "published")
	if contentType := strings.TrimSpace(ctx.Query("content_type")); contentType != "" {
		query = query.Where("content_type = ?", contentType)
	}
	var list []models.CmsContent
	if err := query.Order("created_at desc").Find(&list).Error; err != nil {
		infra.Response.Error(ctx, err)
		return
	}
	infra.Response.Success(ctx, common.ResourceResponse(list))
}

// ConfirmContentRead 记录用户对特定内容版本的确认，幂等号全局唯一。
func ConfirmContentRead(ctx *gin.Context) {
	account, ok := common.UserAccount(ctx)
	if !ok {
		return
	}
	var request struct {
		ContentIdentity string `json:"content_identity" binding:"required"`
		ClientVersion   string `json:"client_version"`
		DeviceIdentity  string `json:"device_identity"`
		RequestNo       string `json:"request_no" binding:"required"`
	}
	if ctx.ShouldBindJSON(&request) != nil {
		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
		return
	}
	var content models.CmsContent
	if impl.DBService.Where("identity = ? AND publish_status = ?", request.ContentIdentity, "published").First(&content).Error != nil {
		infra.Response.Error(ctx, errcode.ErrRecordNotFound)
		return
	}
	record := models.CmsContentRead{
		Entity: common.NewEntity(common.StatusEnable), UserAccountID: account.ID, CmsContentID: content.ID,
		VersionNo: content.VersionNo, ShownAt: time.Now(), ConfirmedAt: timePointer(time.Now()),
		ClientVersion: request.ClientVersion, DeviceIdentity: request.DeviceIdentity, RequestNo: request.RequestNo,
	}
	if err := impl.DBService.Create(&record).Error; err != nil {
		var existing models.CmsContentRead
		if impl.DBService.Where("request_no = ? AND user_account_id = ?", request.RequestNo, account.ID).First(&existing).Error != nil {
			infra.Response.Error(ctx, err)
			return
		}
		record = existing
	}
	infra.Response.Success(ctx, gin.H{"identity": record.Identity, "content_version": record.VersionNo})
}

func timePointer(value time.Time) *time.Time { return &value }