import { Freight } from "@edr/types";
import type { ColumnFormat, FormFieldDef } from "@/pages/ruleEngine/config/resources";
import { vehiclesConfig, VEHICLE_TYPE_OPTIONS, FUEL_TYPE_OPTIONS, VEHICLE_STATUS_OPTIONS } from "./vehicles";
import { driversConfig, DRIVER_STATUS_OPTIONS } from "./drivers";

// Re-export options for backward compatibility
export { VEHICLE_TYPE_OPTIONS, FUEL_TYPE_OPTIONS, VEHICLE_STATUS_OPTIONS, DRIVER_STATUS_OPTIONS };

export type FleetResourceSlug =
  | "locomotives"
  | "trains"
  | "wagons"
  | "containers"
  | "cargoes"
  | "vehicles"
  | "drivers";

export const FLEET_SELECT_NONE = "__none__";

import type { WagonListFilters } from "@/services/wagon.service";

export type FleetListFilters = WagonListFilters;

export type FleetDynamicOptions =
  | "wagonTypes"
  | "containerTypes"
  | "cargoTypes"
  | "wagons"
  | "containers"
  | "yards";

export interface FleetResourceColumn {
  id: string;
  header: string;
  accessorKey: string;
  format?: ColumnFormat | "statusBadge";
  size?: number;
}

export interface FleetFormFieldDef extends FormFieldDef {
  dynamicOptions?: FleetDynamicOptions;
  noneOption?: boolean;
}

export interface FleetListFilterDef {
  key: "status" | "currentYardId" | "wagonTypeId" | "trainId";
  label: string;
  options?: Array<{ value: string; label: string }>;
  allLabel?: string;
  dynamicOptions?: FleetDynamicOptions;
}

export interface FleetResourceConfig {
  slug: FleetResourceSlug;
  label: string;
  subtitle: string;
  basePath: string;
  addLabel: string;
  entityLabel: string;
  searchPlaceholder: string;
  supportsSearch: boolean;
  /** Server-side list filters (e.g. wagon status / readiness). */
  listFilters?: FleetListFilterDef[];
  columns: FleetResourceColumn[];
  formFields: FleetFormFieldDef[];
  emptyValues: Record<string, unknown>;
  removeAction: "delete" | "decommission";
  removeActionLabel?: string;
  removeConfirmMessage?: string;
  removeSuccessMessage?: string;
  detailPath?: string;
  cardTitleKey?: string;
  cardCodeKey?: string;
  cardSubtitleKey?: string;
  searchKeys: string[];
}

export const FLEET_BASE_PATH_BY_SLUG: Record<FleetResourceSlug, string> = {
  locomotives: "/dashboard/locomotives",
  trains: "/dashboard/trains",
  wagons: "/dashboard/wagons",
  containers: "/dashboard/containers",
  cargoes: "/dashboard/cargoes",
  vehicles: "/dashboard/vehicles",
  drivers: "/dashboard/drivers",
};

const LOCOMOTIVE_TYPE_OPTIONS = [
  { label: "Diesel", value: "DIESEL" },
  { label: "Electric", value: "ELECTRIC" },
];

const LOCOMOTIVE_STATUS_OPTIONS = [
  { label: "Available", value: "AVAILABLE" },
  { label: "Maintenance", value: "MAINTENANCE" },
  { label: "Assigned", value: "ASSIGNED" },
  { label: "Out of service", value: "OUT_OF_SERVICE" },
];

const WAGON_STATUS_OPTIONS = [
  { label: "Available", value: Freight.WagonStatus.Available },
  { label: "Assigned", value: Freight.WagonStatus.Assigned },
  { label: "Maintenance", value: Freight.WagonStatus.Maintenance },
  { label: "Retired", value: Freight.WagonStatus.Retired },
];



export const FLEET_RESOURCES: FleetResourceConfig[] = [
  {
    slug: "locomotives",
    label: "Locomotives",
    subtitle: "Manage locomotive master data used by train scheduling and fleet operations",
    basePath: "/dashboard/locomotives",
    addLabel: "Add Locomotive",
    entityLabel: "Locomotive",
    searchPlaceholder: "Search locomotives…",
    supportsSearch: true,
    removeAction: "decommission",
    removeActionLabel: "Decommission",
    removeConfirmMessage: "Decommission this locomotive?",
    removeSuccessMessage: "Locomotive decommissioned",
    cardTitleKey: "name",
    cardCodeKey: "code",
    listFilters: [
      {
        key: "status",
        label: "Status",
        allLabel: "All statuses",
        options: LOCOMOTIVE_STATUS_OPTIONS,
      },
      {
        key: "currentYardId",
        label: "Current Yard",
        allLabel: "All yards",
        dynamicOptions: "yards",
      },
    ],
    cardSubtitleKey: "currentYard",
    searchKeys: ["code", "name", "locomotiveType", "status", "currentYardId"],
    columns: [
      { id: "code", header: "Code", accessorKey: "code", format: "code" },
      { id: "name", header: "Name", accessorKey: "name" },
      { id: "locomotiveType", header: "Type", accessorKey: "locomotiveType" },
      { id: "currentYard", header: "Current Yard", accessorKey: "currentYard", format: "entityLabel" },
      { id: "status", header: "Status", accessorKey: "status", format: "statusBadge" },
      { id: "maxPullWeightTons", header: "Max pull (tons)", accessorKey: "maxPullWeightTons", format: "number" },
      { id: "maxTrainLengthMeters", header: "Max length (m)", accessorKey: "maxTrainLengthMeters", format: "number" },
    ],
    // Code is auto-generated server-side (LOCO-NNN) — omitted from the form.
    formFields: [
      { name: "name", label: "Name", type: "text" },
      { name: "locomotiveType", label: "Locomotive type", type: "select", required: true, options: LOCOMOTIVE_TYPE_OPTIONS },
      { name: "status", label: "Status", type: "select", required: true, options: LOCOMOTIVE_STATUS_OPTIONS },
      { name: "currentYardId", label: "Current Yard", type: "select", dynamicOptions: "yards" },
      { name: "maxPullWeightTons", label: "Max pulling weight (tons)", type: "number", required: true },
      { name: "maxTrainLengthMeters", label: "Max train length (meters)", type: "number", required: true },
      { name: "powerKw", label: "Power (kW)", type: "number" },
      { name: "tractionForceKn", label: "Traction force (kN)", type: "number" },
      { name: "maxSpeedKmh", label: "Max speed (km/h)", type: "number" },
    ],
    emptyValues: {
      name: "",
      locomotiveType: "DIESEL",
      status: "AVAILABLE",
      currentYardId: "",
      maxPullWeightTons: 2500,
      maxTrainLengthMeters: 760,
      powerKw: "",
      tractionForceKn: "",
      maxSpeedKmh: "",
    },
  },
  {
    slug: "trains",
    label: "Trains",
    subtitle: "Manage train master data independently from train scheduling",
    basePath: "/dashboard/trains",
    addLabel: "Add Train",
    entityLabel: "Train",
    searchPlaceholder: "Search trains…",
    supportsSearch: true,
    removeAction: "delete",
    detailPath: "/dashboard/trains/:id",
    cardTitleKey: "trainName",
    cardCodeKey: "code",
    cardSubtitleKey: "trainNumber",
    searchKeys: ["code", "trainNumber", "trainName", "status"],
    columns: [
      { id: "code", header: "Code", accessorKey: "code", format: "code" },
      { id: "trainNumber", header: "Number", accessorKey: "trainNumber" },
      { id: "trainName", header: "Name", accessorKey: "trainName" },
      { id: "capacityTons", header: "Capacity (tons)", accessorKey: "capacityTons", format: "number" },
      { id: "status", header: "Status", accessorKey: "status", format: "statusBadge" },
    ],
    formFields: [
      { name: "code", label: "Code", type: "text", required: true },
      { name: "capacityTons", label: "Capacity (tons)", type: "number", required: true },
      { name: "trainNumber", label: "Train number", type: "text" },
      { name: "trainName", label: "Train name", type: "text" },
      { name: "locomotiveNumber", label: "Locomotive number", type: "text" },
      { name: "status", label: "Status", type: "text" },
      { name: "notes", label: "Notes", type: "textarea" },
      { name: "remarks", label: "Remarks", type: "textarea" },
    ],
    emptyValues: {
      code: "",
      capacityTons: 0,
      trainNumber: "",
      trainName: "",
      locomotiveNumber: "",
      status: "AVAILABLE",
      notes: "",
      remarks: "",
    },
  },
  {
    slug: "wagons",
    label: "Wagons",
    subtitle: "Manage wagon master data. Operational scheduling uses train schedules separately",
    basePath: "/dashboard/wagons",
    addLabel: "Add Wagon",
    entityLabel: "Wagon",
    searchPlaceholder: "Search wagons…",
    supportsSearch: true,
    removeAction: "delete",
    listFilters: [
      {
        key: "status",
        label: "Status",
        allLabel: "All statuses",
        options: WAGON_STATUS_OPTIONS,
      },
      {
        key: "currentYardId",
        label: "Current Yard",
        allLabel: "All yards",
        dynamicOptions: "yards",
      },
    ],
    cardTitleKey: "wagonNumber",
    cardSubtitleKey: "currentYard",
    searchKeys: ["wagonNumber", "wagonTypeId", "trainId", "status", "currentYardId"],
    columns: [
      { id: "wagonNumber", header: "Number", accessorKey: "wagonNumber", format: "code" },
      { id: "wagonTypeId", header: "Type", accessorKey: "wagonTypeId", format: "entityLabel" },
      { id: "maxPayloadWeight", header: "Max payload", accessorKey: "maxPayloadWeight", format: "number" },
      { id: "currentYard", header: "Current Yard", accessorKey: "currentYard", format: "entityLabel" },
      { id: "status", header: "Status", accessorKey: "status", format: "statusBadge" },
    ],
    formFields: [
      { name: "wagonNumber", label: "Wagon number", type: "text", required: true },
      { name: "wagonTypeId", label: "Wagon type", type: "select", required: true, dynamicOptions: "wagonTypes" },
      { name: "tareWeight", label: "Tare weight", type: "number", required: true },
      { name: "maxPayloadWeight", label: "Max payload weight", type: "number", required: true },
      { name: "currentYardId", label: "Current Yard", type: "select", dynamicOptions: "yards" },
      { name: "status", label: "Status", type: "select", required: true, options: WAGON_STATUS_OPTIONS },
      { name: "notes", label: "Notes", type: "textarea" },
    ],
    emptyValues: {
      wagonNumber: "",
      wagonTypeId: "",
      tareWeight: 0,
      maxPayloadWeight: 0,
      currentYardId: "",
      status: Freight.WagonStatus.Available,
      notes: "",
    },
  },
  {
    slug: "containers",
    label: "Containers",
    subtitle: "Manage container master data and wagon assignments",
    basePath: "/dashboard/containers",
    addLabel: "Add Container",
    entityLabel: "Container",
    searchPlaceholder: "Search containers…",
    supportsSearch: true,
    removeAction: "delete",
    cardTitleKey: "containerNumber",
    cardSubtitleKey: "status",
    searchKeys: ["containerNumber", "containerTypeId", "wagonId", "status"],
    columns: [
      { id: "containerNumber", header: "Number", accessorKey: "containerNumber", format: "code" },
      { id: "containerTypeId", header: "Type", accessorKey: "containerTypeId", format: "entityLabel" },
      { id: "wagonId", header: "Wagon", accessorKey: "wagonId", format: "entityLabel" },
      { id: "maxGrossWeight", header: "Max gross", accessorKey: "maxGrossWeight", format: "number" },
      { id: "status", header: "Status", accessorKey: "status", format: "statusBadge" },
    ],
    formFields: [
      { name: "containerNumber", label: "Container number", type: "text", required: true },
      { name: "containerTypeId", label: "Container type", type: "select", required: true, dynamicOptions: "containerTypes" },
      { name: "wagonId", label: "Wagon", type: "select", dynamicOptions: "wagons", noneOption: true },
      { name: "position", label: "Position", type: "number" },
      { name: "tareWeight", label: "Tare weight", type: "number", required: true },
      { name: "maxGrossWeight", label: "Max gross weight", type: "number", required: true },
      { name: "sealNumber", label: "Seal number", type: "text" },
      { name: "status", label: "Status", type: "text" },
    ],
    emptyValues: {
      containerNumber: "",
      containerTypeId: "",
      wagonId: "",
      position: "",
      tareWeight: 0,
      maxGrossWeight: 0,
      sealNumber: "",
      status: "AVAILABLE",
    },
  },
  {
    slug: "cargoes",
    label: "Cargoes",
    subtitle: "Manage cargo records linked to containers",
    basePath: "/dashboard/cargoes",
    addLabel: "Add Cargo",
    entityLabel: "Cargo",
    searchPlaceholder: "Search cargoes…",
    supportsSearch: true,
    removeAction: "delete",
    cardTitleKey: "cargoReference",
    cardSubtitleKey: "status",
    searchKeys: ["cargoReference", "description", "containerId", "status"],
    columns: [
      { id: "cargoReference", header: "Reference", accessorKey: "cargoReference", format: "code" },
      { id: "cargoTypeId", header: "Cargo type", accessorKey: "cargoTypeId", format: "entityLabel" },
      { id: "containerId", header: "Container", accessorKey: "containerId", format: "entityLabel" },
      { id: "quantity", header: "Quantity", accessorKey: "quantity", format: "number" },
      { id: "weight", header: "Weight", accessorKey: "weight", format: "number" },
      { id: "status", header: "Status", accessorKey: "status", format: "statusBadge" },
    ],
    formFields: [
      { name: "cargoReference", label: "Cargo reference", type: "text", required: true },
      { name: "shipmentId", label: "Shipment ID", type: "text", required: true },
      { name: "containerId", label: "Container", type: "select", required: true, dynamicOptions: "containers" },
      { name: "cargoTypeId", label: "Cargo type", type: "select", dynamicOptions: "cargoTypes", noneOption: true },
      { name: "description", label: "Description", type: "textarea" },
      { name: "quantity", label: "Quantity", type: "number", required: true },
      { name: "weight", label: "Weight", type: "number", required: true },
      { name: "volume", label: "Volume", type: "number" },
      { name: "status", label: "Status", type: "text" },
    ],
    emptyValues: {
      cargoReference: "",
      shipmentId: "",
      containerId: "",
      cargoTypeId: "",
      description: "",
      quantity: 0,
      weight: 0,
      volume: "",
      status: "PENDING",
    },
  },
  vehiclesConfig,
  driversConfig,
];

export const getFleetResource = (slug: string): FleetResourceConfig | undefined =>
  FLEET_RESOURCES.find((resource) => resource.slug === slug);

export const getFleetSlugFromPath = (pathname: string): FleetResourceSlug | undefined => {
  const normalized = pathname.toLowerCase();
  return FLEET_RESOURCES.find((resource) => normalized === resource.basePath.toLowerCase())?.slug;
};

export const getFleetRouteMeta = () =>
  FLEET_RESOURCES.map((resource) => ({
    prefix: resource.basePath,
    meta: { title: resource.label, subtitle: resource.subtitle },
  }));