import { mapApiStatusToWizard } from "@/domain/work-orders/mappers/wizard-draft-mapper";
import type {
  DispatchChecklistItem,
  DispatchComment,
  DispatchDetail,
  DispatchSignoff,
  DispatchToVendorPayload,
  DispatchWorkOrderRef,
  EmployeeOption,
  LocationOption,
  TaskListTemplate,
  UpdateDispatchPayload,
  WorkOrderAuditEntry,
  WorkOrderComment,
  WorkOrderDetail,
  WorkOrderDispatchSummary,
  WorkOrderFormValues,
  WorkOrderListItem,
} from "@/domain/work-orders/types/work-order";
import type {
  CompletionDocStatus,
  WorkOrderTableRow,
} from "@/domain/work-orders/types/work-order-table-row";
import type { WOType } from "@/domain/work-orders/types/work-order-wizard";
import { deriveDayFields } from "@/domain/work-orders/utils/table-day-utils";
import { formatApptRange } from "@/domain/work-orders/utils/wizard-date-utils";
import type { UpliftRequest } from "@/domain/uplifts/types/uplift";
import type { WorkOrderStatus } from "@/domain/work-orders/types/work-order-common";
import { WORK_ORDER_STATUS_OPTIONS } from "@/domain/work-orders/types/work-order-common";
import { toDateInputValue } from "@/lib/time-utils";

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

function toWorkOrderStatus(value: string): WorkOrderStatus {
  if (WORK_ORDER_STATUS_OPTIONS.includes(value as WorkOrderStatus)) {
    return value as WorkOrderStatus;
  }
  return "Open";
}

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 readId(record: Record<string, unknown>): string | number {
  const value = record.id ?? record.Id;
  if (typeof value === "string" || typeof value === "number") {
    return 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 mapWorkOrderListItem(raw: unknown): WorkOrderListItem {
  const item = asRecord(raw);

  return {
    id: readId(item),
    number: readString(item, "internalWONumber", "number", "workOrderNumber"),
    title: readString(item, "title", "Title"),
    location: readString(item, "location", "Location", "locationName", "LocationName"),
    priority: readString(item, "priority", "Priority"),
    status: readString(item, "status", "Status"),
    createdDate: readString(item, "createdDate", "CreatedDate"),
    dueDate: readString(item, "dueDate", "DueDate"),
    assignedTo: readString(item, "assignedTo", "AssignedTo", "employeeName", "EmployeeName"),
    lastUpdated: readString(item, "lastUpdated", "LastUpdated"),
  };
}

export function mapWorkOrderListItems(rawItems: unknown[]): WorkOrderListItem[] {
  return rawItems.map(mapWorkOrderListItem);
}

const WO_TYPES_SET = new Set(["PM", "Reactive", "Emergency", "Add-On", "Overdue"]);

function readWoType(record: Record<string, unknown>): WOType | "" {
  const raw = readString(record, "type", "Type", "source", "Source", "woType", "WoType");
  if (WO_TYPES_SET.has(raw)) {
    return raw as WOType;
  }
  return "";
}

function readDocStatus(record: Record<string, unknown>): CompletionDocStatus {
  const raw = readString(record, "docStatus", "DocStatus", "completionDoc", "CompletionDoc");
  if (raw === "Yes" || raw === "No" || raw === "NN") {
    return raw;
  }
  return "";
}

export function mapWorkOrderTableRow(raw: unknown): WorkOrderTableRow {
  const item = asRecord(raw);
  const scheduledOn = toDateInputValue(
    readString(item, "scheduledOn", "scheduledDate", "ScheduledDate", "ScheduledOn"),
  );
  const { dayGroup, dayLabel } = deriveDayFields(scheduledOn);
  const woNumber = readString(
    item,
    "woNumber",
    "internalWONumber",
    "InternalWONumber",
    "number",
    "workOrderNumber",
    "WorkerOrderNumber",
  );
  const site = readString(item, "site", "Site", "locationCode", "LocationCode");
  const location = readString(item, "location", "Location", "locationName", "LocationName");
  const dispatcherId = readString(
    item,
    "dispatcherId",
    "DispatcherId",
    "assigneeId",
    "AssigneeId",
    "employeeId",
    "EmployeeId",
  );
  const dispatcherName = readString(
    item,
    "dispatcherName",
    "DispatcherName",
    "assignedTo",
    "AssignedTo",
    "employeeName",
    "EmployeeName",
    "assignee",
    "Assignee",
  );
  const apptStart = readString(item, "apptStart", "ApptStart", "appointmentStart");
  const apptEnd = readString(item, "apptEnd", "ApptEnd", "appointmentEnd");
  const apptTime =
    readString(item, "apptTime", "ApptTime") ||
    (apptStart ? formatApptRange(apptStart, apptEnd) : "");
  const apiStatus = readString(item, "status", "Status");
  const locationIdRaw = item.locationId ?? item.LocationId;

  const row: WorkOrderTableRow = {
    id: readId(item),
    woNumber,
    site: site || location.slice(0, 8),
    type: readWoType(item),
    dispatcherId,
    dispatcherName,
    scheduledOn,
    completedDate: toDateInputValue(readString(item, "completedDate", "CompletedDate")),
    targetWeek: readString(item, "targetWeek", "TargetWeek"),
    dayGroup,
    dayLabel,
    location,
    locationId:
      typeof locationIdRaw === "string" || typeof locationIdRaw === "number" ? locationIdRaw : "",
    pm: readString(item, "pm", "PM", "problem", "Problem", "service", "Service"),
    company: readString(item, "company", "Company", "vendorName", "VendorName"),
    tech: readString(item, "tech", "Tech", "technician", "Technician"),
    techPhone: readString(item, "techPhone", "TechPhone"),
    apptStart,
    apptEnd,
    apptTime,
    status: mapApiStatusToWizard(apiStatus),
    docStatus: readDocStatus(item),
    pocName: readString(item, "pocName", "PocName", "POCName"),
    pocPhone: readString(item, "pocPhone", "PocPhone", "POCPhone"),
    pocNotes: readString(item, "pocNotes", "PocNotes", "POCNotes"),
    dueDate: toDateInputValue(readString(item, "dueDate", "DueDate")),
    rescheduleCount: readNumber(item, "rescheduleCount", "RescheduleCount") ?? 0,
    carriedOver: readNumber(item, "carriedOver", "CarriedOver") ?? 0,
    originalWeek: readString(item, "originalWeek", "OriginalWeek"),
    originalDate: toDateInputValue(readString(item, "originalDate", "OriginalDate")),
    isPastDue: readBool(item, "isPastDue", "IsPastDue"),
    scheduleWeekOnly: readBool(item, "scheduleWeekOnly", "ScheduleWeekOnly"),
    mediaCount: readNumber(item, "mediaCount", "MediaCount") ?? 0,
    title: readString(item, "title", "Title", "workerOrderTitle", "WorkerOrderTitle"),
    priority: readString(item, "priority", "Priority"),
  };

  return row;
}

export function mapWorkOrderTableRows(rawItems: unknown[]): WorkOrderTableRow[] {
  return rawItems.map(mapWorkOrderTableRow);
}

export function mapWorkOrderComment(raw: unknown): WorkOrderComment {
  const item = asRecord(raw);

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

export function mapWorkOrderAuditEntry(raw: unknown): WorkOrderAuditEntry {
  const item = asRecord(raw);

  return {
    id: readId(item),
    fieldName: readString(item, "fieldName", "FieldName"),
    oldValue: readString(item, "oldValue", "OldValue"),
    newValue: readString(item, "newValue", "NewValue"),
    action: readString(item, "action", "Action"),
    createdAt: readString(item, "createdAt", "CreatedAt"),
    userName: readString(item, "userName", "UserName"),
  };
}

export function mapWorkOrderDispatchSummary(raw: unknown): WorkOrderDispatchSummary {
  const item = asRecord(raw);

  return {
    id: readId(item),
    vendorId: readId({ id: item.vendorId ?? item.VendorId }),
    dispatchNumber: readString(item, "dispatchNumber", "DispatchNumber"),
    poNumber: readString(item, "poNumber", "PoNumber", "PONumber"),
    vendorName: readString(item, "vendorName", "VendorName"),
    vendorEmail: readString(item, "vendorEmail", "VendorEmail"),
    nteAmount: readNumber(item, "nteAmount", "NTEAmount"),
    status: readString(item, "status", "Status"),
    dispatchedAt: readString(item, "dispatchedAt", "DispatchedAt"),
    estimatedArrivalAt: readString(item, "estimatedArrivalAt", "EstimatedArrivalAt"),
    etaManualOverride: readBool(item, "etaManualOverride", "EtaManualOverride"),
  };
}

export function mapWorkOrderDetail(raw: unknown): WorkOrderDetail {
  const wo = asRecord(raw);
  const locationId = wo.locationId ?? wo.LocationId;

  return {
    id: readId(wo),
    internalWONumber: readString(wo, "internalWONumber", "InternalWONumber"),
    workOrderNumber: readString(wo, "workerOrderNumber", "workOrderNumber", "WorkerOrderNumber"),
    title: readString(wo, "title", "workerOrderTitle", "WorkerOrderTitle"),
    location: readString(wo, "location", "Location"),
    locationId: locationId != null ? String(locationId) : "",
    locationZip: readString(wo, "locationZip", "LocationZip"),
    assignedTo: readString(wo, "assignee", "assignedTo", "Assignee", "AssignedTo"),
    dueDate: toDateInputValue(readString(wo, "dueDate", "DueDate")),
    createdDate: toDateInputValue(readString(wo, "createdDate", "CreatedDate")),
    createdDateFull: readString(wo, "createdDate", "CreatedDate"),
    description: readString(wo, "description", "Description"),
    priority: readString(wo, "priority", "Priority"),
    status: readString(wo, "status", "Status") || "Open",
    po: readString(wo, "po", "PO"),
    tt: readString(wo, "tt", "TT"),
    problem: readString(wo, "problem", "Problem"),
    trade: readString(wo, "trade", "Trade"),
    subTrade: readString(wo, "subTrade", "SubTrade"),
    vendorNTE: wo.vendorNTE != null ? String(wo.vendorNTE) : "",
    scheduledDate: toDateInputValue(readString(wo, "scheduledDate", "ScheduledDate")),
    completedDate: toDateInputValue(readString(wo, "completedDate", "CompletedDate")),
    source: readString(wo, "source", "Source"),
    comments: Array.isArray(wo.comments)
      ? wo.comments.map(mapWorkOrderComment)
      : Array.isArray(wo.Comments)
        ? wo.Comments.map(mapWorkOrderComment)
        : [],
    auditLog: Array.isArray(wo.auditLog)
      ? wo.auditLog.map(mapWorkOrderAuditEntry)
      : Array.isArray(wo.AuditLog)
        ? wo.AuditLog.map(mapWorkOrderAuditEntry)
        : [],
    dispatches: Array.isArray(wo.dispatches)
      ? wo.dispatches.map(mapWorkOrderDispatchSummary)
      : Array.isArray(wo.Dispatches)
        ? wo.Dispatches.map(mapWorkOrderDispatchSummary)
        : [],
  };
}

export function mapWorkOrderDetailToFormValues(detail: WorkOrderDetail): WorkOrderFormValues {
  return {
    internalWONumber: detail.internalWONumber,
    workOrderNumber: detail.workOrderNumber,
    title: detail.title,
    locationId: detail.locationId,
    priority: detail.priority,
    status: toWorkOrderStatus(detail.status),
    createdDate: detail.createdDate,
    dueDate: detail.dueDate,
    scheduledDate: detail.scheduledDate,
    completedDate: detail.completedDate,
    assignedTo: detail.assignedTo,
    description: detail.description,
    po: detail.po,
    tt: detail.tt,
    problem: detail.problem,
    trade: detail.trade,
    subTrade: detail.subTrade,
    vendorNTE: detail.vendorNTE,
    source: detail.source,
  };
}

export function mapWorkOrderFormToCreatePayload(
  values: WorkOrderFormValues,
): Record<string, unknown> {
  return {
    WorkerOrderNumber: values.workOrderNumber,
    WorkerOrderTitle: values.title,
    LocationId: values.locationId ? parseInt(values.locationId, 10) : null,
    Priority: values.priority || null,
    Status: values.status,
    CreatedDate: values.createdDate || null,
    DueDate: values.dueDate || null,
    ScheduledDate: values.scheduledDate || null,
    CompletedDate: values.completedDate || null,
    AssignTo: values.assignedTo || null,
    Description: values.description,
    PO: values.po || null,
    TT: values.tt || null,
    Problem: values.problem || null,
    Trade: values.trade || null,
    SubTrade: values.subTrade || null,
    VendorNTE: values.vendorNTE ? parseFloat(values.vendorNTE) : null,
    Source: values.source || null,
  };
}

export function mapWorkOrderFormToUpdatePayload(
  id: string | number,
  values: WorkOrderFormValues,
): Record<string, unknown> {
  return {
    Id: id,
    WorkerOrderNumber: values.workOrderNumber,
    WorkerOrderTitle: values.title,
    Description: values.description,
    PO: values.po || null,
    TT: values.tt || null,
    AssignTo: values.assignedTo || null,
    DueDate: values.dueDate || null,
    Priority: values.priority || null,
    Status: values.status,
    LocationId: values.locationId ? parseInt(values.locationId, 10) : null,
    Problem: values.problem || null,
    Trade: values.trade || null,
    SubTrade: values.subTrade || null,
    VendorNTE: values.vendorNTE ? parseFloat(values.vendorNTE) : null,
    ScheduledDate: values.scheduledDate || null,
    CompletedDate: values.completedDate || null,
    CreatedDate: values.createdDate || null,
    Source: values.source || null,
  };
}

export function mapLocationOption(raw: unknown): LocationOption {
  const item = asRecord(raw);

  return {
    id: readId(item),
    name: readString(item, "name", "Name", "locationName", "LocationName"),
  };
}

export function mapLocationOptions(rawItems: unknown[]): LocationOption[] {
  return rawItems.map(mapLocationOption);
}

export function mapEmployeeOption(raw: unknown): EmployeeOption {
  const item = asRecord(raw);

  return {
    id: readId(item),
    name:
      readString(item, "name", "Name", "fullName", "FullName", "employeeName", "EmployeeName") ||
      readString(item, "userName", "UserName"),
  };
}

export function mapEmployeeOptions(rawItems: unknown[]): EmployeeOption[] {
  return rawItems.map(mapEmployeeOption);
}

export { mapVendorDropdownItem, mapVendorDropdownItems } from "./work-order-vendor-mapper";

export function mapTaskListTemplate(raw: unknown): TaskListTemplate {
  const item = asRecord(raw);
  const items = item.items ?? item.Items;

  return {
    id: readId(item),
    name: readString(item, "name", "Name"),
    items: Array.isArray(items) ? items : [],
  };
}

export function mapTaskListTemplates(rawItems: unknown[]): TaskListTemplate[] {
  return rawItems.map(mapTaskListTemplate);
}

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,
  };
}

export function mapUpliftRequest(raw: unknown): UpliftRequest {
  const item = asRecord(raw);

  return {
    id: readId(item),
    status: readString(item, "status", "Status"),
    currentNTE: readNumber(item, "currentNTE", "CurrentNTE"),
    requestedNTE: readNumber(item, "requestedNTE", "RequestedNTE") ?? 0,
    delta: readNumber(item, "delta", "Delta") ?? 0,
    vendorReason: readString(item, "vendorReason", "VendorReason"),
    requestedAt: readString(item, "requestedAt", "RequestedAt"),
    requestedByVendorName: readString(item, "requestedByVendorName", "RequestedByVendorName"),
    decidedAt: readString(item, "decidedAt", "DecidedAt"),
    decidedByName: readString(item, "decidedByName", "DecidedByName"),
    decisionNote: readString(item, "decisionNote", "DecisionNote"),
    requiredTier: readNumber(item, "requiredTier", "RequiredTier") ?? 1,
    canDecide: readBool(item, "canDecide", "CanDecide"),
  };
}

export function mapUpliftRequests(rawItems: unknown[]): UpliftRequest[] {
  return rawItems.map(mapUpliftRequest);
}