All files / src/app/api/dev/tickets route.ts

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export const dynamic = "force-dynamic";

/**
 * Dev Tickets API
 * GET /api/dev/tickets - List all dev tickets with filters
 * POST /api/dev/tickets - Create a new dev ticket
 */

import { NextRequest, NextResponse } from 'next/server';
import { Session } from "next-auth";
import { prisma } from "@/lib/prisma";
import {
  CreateDevTicketSchema,
  DevTicketFilterSchema,
  DevTicketSortSchema,
  PaginationSchema } from "@/lib/validation/dev-ticket-schemas";
import {
  buildTicketWhereClause,
  buildTicketOrderByClause,
  generateTicketNumber,
  recordTicketCreation,
  buildHierarchyPath,
  calculateHierarchyLevel,
  updateParentChildCounts,
  isValidParentChildCategory } from "@/lib/dev-ticket";
import { logger } from "@/lib/logging";
import {
  withAdmin,
  withErrorHandling,
  successResponse,
  createdResponse,
  ApiError,
  ApiSuccessResponse,
  ApiErrorResponse } from "@/lib/api";
import { AuthenticatedUser } from "@/lib/api/middleware";

async function handleGet(request: NextRequest): Promise<NextResponse<ApiSuccessResponse<unknown> | ApiErrorResponse>> {
  // Parse query parameters
  const { searchParams } = new URL(request.url);
  const queryParams: Record<string, string | string[] | undefined> = {};

  // Extract filter params (handle arrays for multi-select filters)
  const arrayParams = ["status", "type", "priority", "severity", "category", "labelIds"];
  const singleParams = [
    "projectId",
    "milestoneId",
    "sprintId",
    "reporterId",
    "assigneeId",
    "parentId",
    "hierarchyLevel",
    "includeDescendants",
    "search",
    "createdAfter",
    "createdBefore",
    "dueAfter",
    "dueBefore",
    "includeDeleted",
    "onlyDeleted",
  ];

  for (const param of arrayParams) {
    const values = searchParams.getAll(param);
    if (values.length > 0) {
      queryParams[param] = values.length === 1 ? values[0] : values;
    }
  }

  for (const param of singleParams) {
    const value = searchParams.get(param);
    if (value) {
      queryParams[param] = value;
    }
  }

  // Parse filters
  const filterResult = DevTicketFilterSchema.safeParse(queryParams);
  if (!filterResult.success) {
    throw ApiError.validation("Invalid filter parameters", filterResult.error.flatten().fieldErrors);
  }

  // Parse sort
  const sortResult = DevTicketSortSchema.safeParse({
    field: searchParams.get("sortBy") || "createdAt",
    direction: searchParams.get("sortOrder") || "desc"});

  // Parse pagination
  const paginationResult = PaginationSchema.safeParse({
    page: searchParams.get("page"),
    limit: searchParams.get("limit")});

  if (!paginationResult.success) {
    throw ApiError.validation("Invalid pagination parameters", paginationResult.error.flatten().fieldErrors);
  }

  const filters = filterResult.data;
  const sort = sortResult.success ? sortResult.data : { field: "createdAt" as const, direction: "desc" as const };
  const { page, limit } = paginationResult.data;

  // Build where clause
  const where = buildTicketWhereClause(filters);
  const orderBy = buildTicketOrderByClause(sort);

  // Get total count
  const total = await prisma.devTicket.count({ where });

  // Get tickets with pagination
  const tickets = await prisma.devTicket.findMany({
    where,
    include: {
      reporter: {
        select: { id: true, name: true, email: true, image: true }},
      assignee: {
        select: { id: true, name: true, email: true, image: true }},
      project: {
        select: { id: true, name: true, key: true, color: true }},
      milestone: {
        select: { id: true, name: true, status: true }},
      sprint: {
        select: { id: true, name: true, status: true }},
      labels: true,
      parent: {
        select: {
          id: true,
          ticketNumber: true,
          title: true,
          status: true,
          category: true,
          childCount: true,
          completedChildCount: true}},
      _count: {
        select: {
          comments: true,
          attachments: true,
          timeEntries: true,
          linkedTickets: true,
          linkedFrom: true,
          children: true}}},
    orderBy,
    skip: (page - 1) * limit,
    take: limit});

  return successResponse({
    tickets,
    pagination: {
      page,
      limit,
      total,
      totalPages: Math.ceil(total / limit)}});
}

async function handlePost(
  request: NextRequest,
  _context: unknown,
  session: Session,
  user: AuthenticatedUser
): Promise<NextResponse<ApiSuccessResponse<unknown> | ApiErrorResponse>> {
  const body = await request.json();
  const validationResult = CreateDevTicketSchema.safeParse(body);

  if (!validationResult.success) {
    throw ApiError.validation("Invalid ticket data", validationResult.error.flatten().fieldErrors);
  }

  const data = validationResult.data;

  // Generate ticket number
  const ticketNumber = await generateTicketNumber();

  // Extract label IDs for connection
  const { labelIds, parentId, ...ticketData } = data;

  // Validate parent-child category relationship if parentId is provided
  let parentCategory = null;
  if (parentId) {
    const parent = await prisma.devTicket.findUnique({
      where: { id: parentId },
      select: { category: true }});
    if (!parent) {
      throw ApiError.notFound("Parent ticket");
    }
    parentCategory = parent.category;

    const childCategory = ticketData.category || "TASK";
    if (!isValidParentChildCategory(childCategory, parentCategory)) {
      throw ApiError.badRequest(`Cannot create ${childCategory} under ${parentCategory}`);
    }
  } else if (ticketData.category && ticketData.category !== "EPIC") {
    // If no parent and not an EPIC, check if category can be root
    if (!isValidParentChildCategory(ticketData.category, null)) {
      throw ApiError.badRequest(`${ticketData.category} must have a parent ticket`);
    }
  }

  // Calculate hierarchy metadata
  const hierarchyPath = await buildHierarchyPath(parentId || null);
  const hierarchyLevel = await calculateHierarchyLevel(parentId || null);

  // Create the ticket
  const ticket = await prisma.devTicket.create({
    data: {
      ticketNumber,
      title: ticketData.title,
      description: ticketData.description,
      type: ticketData.type,
      priority: ticketData.priority || "MEDIUM",
      severity: ticketData.severity,
      category: ticketData.category || "TASK",
      parentId: parentId || null,
      objectives: ticketData.objectives,
      definitionOfDone: ticketData.definitionOfDone,
      hierarchyPath,
      hierarchyLevel,
      reporterId: user.id,
      assigneeId: ticketData.assigneeId,
      projectId: ticketData.projectId,
      milestoneId: ticketData.milestoneId,
      sprintId: ticketData.sprintId,
      estimatedHours: ticketData.estimatedHours,
      storyPoints: ticketData.storyPoints,
      dueDate: ticketData.dueDate,
      labels: labelIds?.length
        ? { connect: labelIds.map((id) => ({ id })) }
        : undefined},
    include: {
      reporter: {
        select: { id: true, name: true, email: true, image: true }},
      assignee: {
        select: { id: true, name: true, email: true, image: true }},
      project: {
        select: { id: true, name: true, key: true, color: true }},
      milestone: {
        select: { id: true, name: true, status: true }},
      sprint: {
        select: { id: true, name: true, status: true }},
      labels: true,
      parent: {
        select: {
          id: true,
          ticketNumber: true,
          title: true,
          status: true,
          category: true}}}});

  // Update parent's child count if ticket has a parent
  if (parentId) {
    await updateParentChildCounts(parentId);
  }

  // Record creation in history
  await recordTicketCreation(ticket.id, user.id);

  logger.info(`Created ticket ${ticketNumber}`, {
    category: "DEV_TICKETS",
    ticketId: ticket.id,
    userId: user.id});

  return createdResponse(ticket);
}

export const GET = withErrorHandling(withAdmin(handleGet));
export const POST = withErrorHandling(withAdmin(handlePost));