import type {
  DispatchChecklistItem,
  DispatchComment,
  DispatchDetail,
  DispatchSignoff,
  DispatchToVendorPayload,
  DispatchWorkOrderRef,
  UpdateDispatchPayload,
} from "@/domain/work-orders/types/work-order";

function asRecord(raw: unknown): Record<string, unknown> {
  return typeof raw === "object" && raw !== null ? (raw as Record<string, unknown>) : {};
}

function readId(record: Record<string, unknown>): string | number {
  const value = record.id ?? record.Id;
  if (typeof value === "string" || typeof value === "number") {
    return value;
  }
  return "";
}

function readString(record: Record<string, unknown>, ...keys: string[]): string {
  for (const key of keys) {
    const value = record[key];
    if (typeof value === "string") {
      return value;
    }
    if (typeof value === "number") {
      return String(value);
    }
  }
  return "";
}

function readNumber(record: Record<string, unknown>, ...keys: string[]): number | null {
  for (const key of keys) {
    const value = record[key];
    if (typeof value === "number") {
      return value;
    }
    if (typeof value === "string" && value !== "") {
      const parsed = Number(value);
      if (!Number.isNaN(parsed)) {
        return parsed;
      }
    }
  }
  return null;
}

function readBool(record: Record<string, unknown>, ...keys: string[]): boolean {
  for (const key of keys) {
    const value = record[key];
    if (typeof value === "boolean") {
      return value;
    }
  }
  return false;
}

export function mapDispatchChecklistItem(raw: unknown): DispatchChecklistItem {
  const item = asRecord(raw);

  return {
    id: readId(item),
    itemText: readString(item, "itemText", "ItemText"),
    isCompleted: readBool(item, "isCompleted", "IsCompleted"),
    completedBy: readString(item, "completedBy", "CompletedBy") || null,
    completedAt: readString(item, "completedAt", "CompletedAt") || null,
  };
}

export function mapDispatchSignoff(raw: unknown): DispatchSignoff {
  const item = asRecord(raw);

  return {
    id: readId(item),
    signoffType: readString(item, "signoffType", "SignoffType"),
    name: readString(item, "name", "Name"),
    signature: readString(item, "signature", "Signature"),
    signatureMethod: readString(item, "signatureMethod", "SignatureMethod"),
    signedAt: readString(item, "signedAt", "SignedAt"),
  };
}

export function mapDispatchComment(raw: unknown): DispatchComment {
  const item = asRecord(raw);

  return {
    id: readId(item),
    createdDate: readString(item, "createdDate", "CreatedDate"),
    commenttext: readString(item, "commenttext", "Commenttext", "text", "Text"),
    userName: readString(item, "userName", "UserName"),
    commenter: readString(item, "commenter", "Commenter") || null,
  };
}

export function mapDispatchWorkOrderRef(raw: unknown): DispatchWorkOrderRef {
  const item = asRecord(raw);

  return {
    id: readId(item),
    woNumber: readString(item, "woNumber", "WoNumber", "WONumber", "number", "Number"),
  };
}

export function mapDispatchDetail(raw: unknown): DispatchDetail {
  const item = asRecord(raw);
  const checklistItems = item.checklistItems ?? item.ChecklistItems;
  const signoffs = item.signoffs ?? item.Signoffs;
  const comments = item.comments ?? item.Comments;
  const workOrders = item.workOrders ?? item.WorkOrders;

  return {
    id: readId(item),
    dispatchNumber: readString(item, "dispatchNumber", "DispatchNumber"),
    poNumber: readString(item, "poNumber", "PoNumber", "PONumber"),
    vendorName: readString(item, "vendorName", "VendorName"),
    vendorEmail: readString(item, "vendorEmail", "VendorEmail"),
    woNumber: readString(item, "woNumber", "WoNumber"),
    status: readString(item, "status", "Status"),
    nteAmount: readNumber(item, "nteAmount", "NTEAmount"),
    scheduledDate: readString(item, "scheduledDate", "ScheduledDate"),
    estimatedArrivalAt: readString(item, "estimatedArrivalAt", "EstimatedArrivalAt"),
    etaManualOverride: readBool(item, "etaManualOverride", "EtaManualOverride"),
    completedDate: readString(item, "completedDate", "CompletedDate"),
    description: readString(item, "description", "Description"),
    dispatchedAt: readString(item, "dispatchedAt", "DispatchedAt"),
    acknowledgedAt: readString(item, "acknowledgedAt", "AcknowledgedAt"),
    verifiedAt: readString(item, "verifiedAt", "VerifiedAt"),
    verifiedBy: readString(item, "verifiedBy", "VerifiedBy"),
    checklistItems: Array.isArray(checklistItems)
      ? checklistItems.map(mapDispatchChecklistItem)
      : [],
    signoffs: Array.isArray(signoffs) ? signoffs.map(mapDispatchSignoff) : [],
    comments: Array.isArray(comments) ? comments.map(mapDispatchComment) : [],
    workOrders: Array.isArray(workOrders) ? workOrders.map(mapDispatchWorkOrderRef) : [],
  };
}

export function mapDispatchToVendorPayload(
  payload: DispatchToVendorPayload,
): Record<string, unknown> {
  return {
    WorkOrderIds: payload.workOrderIds,
    VendorIds: payload.vendorIds,
    NTEAmount: payload.nteAmount,
    ScheduledDate: payload.scheduledDate,
    EstimatedArrivalAt: payload.estimatedArrivalAt,
    EtaManualOverride: payload.etaManualOverride ?? false,
    Description: payload.description,
    TaskListTemplateId: payload.taskListTemplateId,
    CustomChecklistItems: payload.customChecklistItems,
  };
}

export function mapUpdateDispatchPayload(payload: UpdateDispatchPayload): Record<string, unknown> {
  return {
    Id: payload.id,
    Status: payload.status,
    NTEAmount: payload.nteAmount,
    ScheduledDate: payload.scheduledDate,
    EstimatedArrivalAt: payload.estimatedArrivalAt,
    EtaManualOverride: payload.etaManualOverride ?? false,
    CompletedDate: payload.completedDate,
    Description: payload.description,
  };
}