package interfaces

import (
	"strconv"

	"mengstack/internal/kernel/response"
	"mengstack/internal/kernel/tenant"
	"mengstack/internal/modules/audit/application"
	auditdomain "mengstack/internal/modules/audit/domain"

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

type Handler struct {
	svc *application.Service
}

func NewHandler(svc *application.Service) *Handler {
	return &Handler{svc: svc}
}

// ListLogs godoc
// @Summary      查询审计日志
// @Description  分页查询审计日志，支持按用户、操作、资源筛选
// @Tags         Audit
// @Produce      json
// @Param        user_id   query     int     false  "按用户 ID 筛选"
// @Param        action    query     string  false  "按操作筛选"
// @Param        resource  query     string  false  "按资源类型筛选"
// @Param        page      query     int     false  "页码（默认 1）"
// @Param        page_size query     int     false  "每页条数（默认 20）"
// @Success      200  {object}  response.Response
// @Failure      500  {object}  response.Response
// @Security     Bearer
// @Security     TenantID
// @Router       /api/v1/audit/logs [get]
func (h *Handler) ListLogs(c *gin.Context) {
	tenantID, _ := tenant.FromContext(c.Request.Context())

	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
	pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "20"))

	query := auditdomain.AuditQuery{
		TenantID: tenantID,
		UserID:   parseUintQuery(c, "user_id"),
		Action:   c.Query("action"),
		Resource: c.Query("resource"),
		Page:     page,
		PageSize: pageSize,
	}

	dtos, total, err := h.svc.Query(c.Request.Context(), query)
	if err != nil {
		response.HandleError(c, err)
		return
	}

	response.Success(c, gin.H{
		"items": dtos,
		"total": total,
		"page":  page,
	})
}

func parseUintQuery(c *gin.Context, key string) uint {
	v, _ := strconv.ParseUint(c.DefaultQuery(key, "0"), 10, 64)
	return uint(v)
}