import type { WorkOrderFormValues } from "@/domain/work-orders/types/work-order-detail";
import type {
  WOType,
  WizardWOStatus,
  WorkOrderWizardDraft,
} from "@/domain/work-orders/types/work-order-wizard";
import type { WorkOrderStatus } from "@/domain/work-orders/types/work-order-common";
import { formatApptRange, todayIso } from "@/domain/work-orders/utils/wizard-date-utils";

const WIZARD_TO_API_STATUS: Record<WizardWOStatus, WorkOrderStatus> = {
  Incomplete: "Open",
  Pending: "Open",
  Scheduled: "Open",
  "En Route": "In Progress",
  "On Site": "In Progress",
  "In Progress": "In Progress",
  Completed: "Done",
  Rescheduled: "On Hold",
  "Pending Quote": "On Hold",
};

const API_TO_WIZARD_STATUS: Partial<Record<WorkOrderStatus, WizardWOStatus>> = {
  Open: "Incomplete",
  "In Progress": "In Progress",
  "On Hold": "Pending",
  Done: "Completed",
};

const TYPE_TO_PRIORITY: Record<WOType, string> = {
  Emergency: "Sev 1",
  Reactive: "Sev 2",
  Overdue: "Sev 2",
  "Add-On": "Sev 3",
  PM: "Sev 3",
};

export function mapWizardStatusToApi(status: WizardWOStatus | ""): WorkOrderStatus {
  if (!status) {
    return "Open";
  }
  return WIZARD_TO_API_STATUS[status] ?? "Open";
}

export function mapApiStatusToWizard(status: string): WizardWOStatus | "" {
  if (!status) {
    return "";
  }
  if (API_TO_WIZARD_STATUS[status as WorkOrderStatus]) {
    return API_TO_WIZARD_STATUS[status as WorkOrderStatus]!;
  }
  const wizardStatuses = Object.keys(WIZARD_TO_API_STATUS) as WizardWOStatus[];
  if (wizardStatuses.includes(status as WizardWOStatus)) {
    return status as WizardWOStatus;
  }
  if (status === "Canceled" || status === "Cancelled") {
    return "Canceled" as WizardWOStatus;
  }
  return "Incomplete";
}

export function mapTypeToPriority(type: WOType | ""): string {
  if (!type) {
    return "Sev 3";
  }
  return TYPE_TO_PRIORITY[type];
}

function buildTitle(draft: WorkOrderWizardDraft): string {
  if (draft.woNumber) {
    return `${draft.type || "Work Order"} — #${draft.woNumber}`;
  }
  if (draft.locationName) {
    return `${draft.type || "Work Order"} — ${draft.locationName}`;
  }
  return draft.type || "Work Order";
}

function buildDescription(draft: WorkOrderWizardDraft): string {
  const parts: string[] = [];

  if (draft.pocNotes) {
    parts.push(`POC notes: ${draft.pocNotes}`);
  }
  if (draft.pocName || draft.pocPhone) {
    parts.push(`POC: ${[draft.pocName, draft.pocPhone].filter(Boolean).join(" · ")}`);
  }
  if (draft.apptStart) {
    parts.push(`Appt: ${formatApptRange(draft.apptStart, draft.apptEnd)}`);
  }
  if (draft.vendorNotes) {
    parts.push(`Vendor notes: ${draft.vendorNotes}`);
  }
  if (draft.vendorName) {
    parts.push(`Vendor: ${draft.vendorName}`);
  }

  return parts.join("\n");
}

export function mapWizardDraftToFormValues(draft: WorkOrderWizardDraft): WorkOrderFormValues {
  return {
    internalWONumber: "",
    workOrderNumber: draft.woNumber,
    title: buildTitle(draft),
    locationId: draft.locationId,
    priority: mapTypeToPriority(draft.type),
    status: mapWizardStatusToApi(draft.status),
    createdDate: todayIso(),
    dueDate: draft.dueDate,
    scheduledDate: draft.scheduleWeekOnly ? "" : draft.scheduledOn,
    completedDate: "",
    docStatus: "",
    assignedTo: draft.assigneeName,
    description: buildDescription(draft),
    po: "",
    tt: "",
    problem: draft.pm,
    trade: "",
    subTrade: "",
    vendorNTE: "",
    source: draft.type,
  };
}