package platform

import (
	"encoding/json"
	"lingniu/vehicle-data-platform/apps/api/internal/httpx"
	"net/http"
)

// Mileage pickers expose only identifiers and export labels. Their service calls
// retain the caller's existing VIN scope; statistics access grants no telemetry.
type mileageVehicleOption struct {
	VIN       string `json:"vin"`
	Plate     string `json:"plate"`
	BrandName string `json:"brandName,omitempty"`
	ModelName string `json:"modelName,omitempty"`
}

func (h *Handler) handleMileageVehicleOptions(w http.ResponseWriter, r *http.Request) {
	data, err := h.service.VehicleCoverage(r.Context(), r.URL.Query())
	result := Page[mileageVehicleOption]{Items: []mileageVehicleOption{}, Total: data.Total, Limit: data.Limit, Offset: data.Offset}
	for _, row := range data.Items {
		result.Items = append(result.Items, mileageVehicleOption{VIN: row.VIN, Plate: row.Plate, BrandName: row.BrandName, ModelName: row.ModelName})
	}
	h.write(w, r, result, err)
}
func (h *Handler) handleMileageVehicles(w http.ResponseWriter, r *http.Request) {
	data, err := h.service.Vehicles(r.Context(), r.URL.Query())
	result := Page[mileageVehicleOption]{Items: []mileageVehicleOption{}, Total: data.Total, Limit: data.Limit, Offset: data.Offset}
	for _, row := range data.Items {
		result.Items = append(result.Items, mileageVehicleOption{VIN: row.VIN, Plate: row.Plate})
	}
	h.write(w, r, result, err)
}
func (h *Handler) handleMileageVehicleResolve(w http.ResponseWriter, r *http.Request) {
	defer r.Body.Close()
	var query VehicleOverviewBatchQuery
	if err := json.NewDecoder(r.Body).Decode(&query); err != nil {
		httpx.WriteError(w, http.StatusBadRequest, "BAD_JSON", "请求 JSON 解析失败", err.Error(), traceID(r))
		return
	}
	data, err := h.service.VehicleServiceOverviews(r.Context(), query)
	result := Page[mileageVehicleOption]{Items: []mileageVehicleOption{}, Total: data.Total, Limit: data.Limit, Offset: data.Offset}
	for _, row := range data.Items {
		result.Items = append(result.Items, mileageVehicleOption{VIN: row.VIN, Plate: row.Plate})
	}
	h.write(w, r, result, err)
}