import type {
  WorkOrderBoardEditableField,
  WorkOrderBoardPatchPayload,
} from "@/domain/work-orders/types/work-order-board";
import type {
  WorkOrderTablePatch,
  WorkOrderTableRow,
} from "@/domain/work-orders/types/work-order-table-row";

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

const DISPATCH_FIELDS = new Set<WorkOrderBoardEditableField>(["vendorId", "apptDate", "apptTime"]);

const LOCAL_ONLY_KEYS = new Set<keyof WorkOrderTablePatch>([
  "mediaCount",
  "dayGroup",
  "dayLabel",
  "dispatcherName",
  "company",
  "tech",
  "techPhone",
  "location",
  "locationId",
  "pocName",
  "pocPhone",
  "pocNotes",
  "title",
  "priority",
  "apptStart",
  "apptEnd",
  "rescheduleCount",
  "carriedOver",
  "isPastDue",
  "originalWeek",
  "originalDate",
]);

export function mapDocStatusToApi(value: string): string {
  if (value === "NN") {
    return "NotNeeded";
  }
  return value;
}

export function isLocalOnlyTablePatch(patch: WorkOrderTablePatch): boolean {
  const keys = Object.keys(patch) as (keyof WorkOrderTablePatch)[];
  return keys.length > 0 && keys.every((key) => LOCAL_ONLY_KEYS.has(key));
}

/**
 * Expands a UI table patch into ordered board field ops (one PATCH each).
 * Schedule/week-only fields are emitted first in a stable order.
 */
export function expandTablePatchToBoardFieldOps(patch: WorkOrderTablePatch): BoardFieldOp[] {
  if (isLocalOnlyTablePatch(patch)) {
    return [];
  }

  const ops: BoardFieldOp[] = [];

  const hasScheduleRelated =
    patch.scheduledOn !== undefined ||
    patch.targetWeek !== undefined ||
    patch.scheduleWeekOnly !== undefined;

  if (hasScheduleRelated) {
    if (patch.scheduleWeekOnly === true) {
      ops.push({ field: "scheduleWeekOnly", value: "true" });
      if (patch.targetWeek !== undefined) {
        ops.push({ field: "targetWeek", value: patch.targetWeek });
      }
      if (patch.scheduledOn !== undefined) {
        ops.push({ field: "scheduledDate", value: patch.scheduledOn });
      }
    } else {
      if (patch.scheduleWeekOnly === false) {
        ops.push({ field: "scheduleWeekOnly", value: "false" });
      }
      if (patch.scheduledOn !== undefined) {
        ops.push({ field: "scheduledDate", value: patch.scheduledOn });
      }
      if (patch.targetWeek !== undefined) {
        ops.push({ field: "targetWeek", value: patch.targetWeek });
      }
    }
  }

  if (patch.woNumber !== undefined) {
    ops.push({ field: "woNumber", value: patch.woNumber });
  }
  if (patch.type !== undefined) {
    ops.push({ field: "workOrderType", value: patch.type });
  }
  if (patch.site !== undefined) {
    ops.push({ field: "siteCode", value: patch.site });
  }
  if (patch.status !== undefined) {
    ops.push({ field: "lifecycleStatus", value: patch.status });
  }
  if (patch.dispatcherId !== undefined) {
    ops.push({ field: "assignTo", value: patch.dispatcherId });
  }
  if (patch.dueDate !== undefined) {
    ops.push({ field: "dueDate", value: patch.dueDate });
  }
  if (patch.vendorId !== undefined) {
    ops.push({ field: "vendorId", value: String(patch.vendorId) });
  }
  if (patch.apptTime !== undefined) {
    ops.push({ field: "apptTime", value: patch.apptTime });
  }
  if (patch.docStatus !== undefined) {
    ops.push({ field: "docStatus", value: mapDocStatusToApi(patch.docStatus) });
  }
  if (patch.pm !== undefined) {
    ops.push({ field: "pm", value: patch.pm });
  }
  if (patch.extraServices !== undefined) {
    ops.push({ field: "extraServices", value: JSON.stringify(patch.extraServices) });
  }
  if (patch.serviceNotes !== undefined) {
    ops.push({ field: "serviceNotes", value: patch.serviceNotes });
  }
  if (patch.flagColor !== undefined) {
    ops.push({ field: "flagColor", value: patch.flagColor ?? "" });
  }

  return ops;
}

export function isDispatchBoardField(field: WorkOrderBoardEditableField): boolean {
  return DISPATCH_FIELDS.has(field);
}

export function buildBoardPatchPayload(
  op: BoardFieldOp,
  row: Pick<WorkOrderTableRow, "rowVersion" | "dispatchRowVersion" | "primaryDispatchId">,
): WorkOrderBoardPatchPayload {
  if (!row.rowVersion) {
    throw new Error("workOrderVersion is required for board patch");
  }

  const payload: WorkOrderBoardPatchPayload = {
    field: op.field,
    value: op.value,
    workOrderVersion: row.rowVersion,
  };

  if (isDispatchBoardField(op.field)) {
    if (row.dispatchRowVersion) {
      payload.dispatchVersion = row.dispatchRowVersion;
    }
    if (row.primaryDispatchId != null) {
      payload.primaryDispatchId = row.primaryDispatchId;
    }
  }

  return payload;
}