import type { WorkOrderBoardEditableField } from "@/domain/work-orders/types/work-order-board";
import type { WorkOrderTablePatch } from "@/domain/work-orders/types/work-order-table-row";
import { mapDocStatusToApi } from "@/domain/work-orders/mappers/doc-status-mapper";

export type BoardFieldOp = {
  field: WorkOrderBoardEditableField;
  value: string;
};

export { mapDocStatusToApi };

type ScalarBoardOpRule = {
  key: keyof WorkOrderTablePatch;
  field: WorkOrderBoardEditableField;
  toValue: (value: unknown) => string;
};

/** One row per scalar patch field, in emission order. */
const SCALAR_BOARD_OP_RULES: ScalarBoardOpRule[] = [
  { key: "woNumber", field: "woNumber", toValue: (value) => value as string },
  // Severity before type so Emergency/Reactive never land without required severity.
  {
    key: "severity",
    field: "severity",
    toValue: (value) => (value == null ? "" : String(value)),
  },
  { key: "type", field: "workOrderType", toValue: (value) => value as string },
  { key: "site", field: "siteCode", toValue: (value) => value as string },
  { key: "status", field: "lifecycleStatus", toValue: (value) => value as string },
  { key: "dispatcherId", field: "assignTo", toValue: (value) => value as string },
  { key: "dueDate", field: "dueDate", toValue: (value) => value as string },
  { key: "vendorId", field: "vendorId", toValue: (value) => String(value) },
  { key: "apptTime", field: "apptTime", toValue: (value) => value as string },
  { key: "docStatus", field: "docStatus", toValue: (value) => mapDocStatusToApi(value as string) },
  { key: "completedDate", field: "completedDate", toValue: (value) => value as string },
  { key: "pm", field: "pm", toValue: (value) => value as string },
  { key: "extraServices", field: "extraServices", toValue: (value) => JSON.stringify(value) },
  { key: "serviceNotes", field: "serviceNotes", toValue: (value) => value as string },
  { key: "flagColor", field: "flagColor", toValue: (value) => (value as string | null) ?? "" },
];

export function expandScalarBoardOps(patch: WorkOrderTablePatch): BoardFieldOp[] {
  const ops: BoardFieldOp[] = [];

  for (const rule of SCALAR_BOARD_OP_RULES) {
    const value = patch[rule.key];
    if (value === undefined) continue;
    ops.push({ field: rule.field, value: rule.toValue(value) });
  }

  return ops;
}