import type { APIRoute } from 'astro';
import { db } from '../../../db';
import { timeEntries, members, timeEntryTags, categories } from '../../../db/schema';
import { eq, and, isNull } from 'drizzle-orm';
import { nanoid } from 'nanoid';

export const POST: APIRoute = async ({ request, locals }) => {
  if (!locals.user) return new Response('Unauthorized', { status: 401 });

  const body = await request.json();
  const description = body.description || '';
  const clientId = body.clientId;
  const categoryId = body.categoryId;
  const tags = body.tags || [];

  if (!clientId) {
    return new Response('Client is required', { status: 400 });
  }

  if (!categoryId) {
    return new Response('Category is required', { status: 400 });
  }

  // Check for running entry
  const runningEntry = await db.select().from(timeEntries).where(
    and(
      eq(timeEntries.userId, locals.user.id),
      isNull(timeEntries.endTime)
    )
  ).get();

  if (runningEntry) {
    return new Response('Timer already running', { status: 400 });
  }

  // Get default org (first one)
  const member = await db.select().from(members).where(eq(members.userId, locals.user.id)).limit(1).get();
  if (!member) {
    return new Response('No organization found', { status: 400 });
  }

  // Verify category belongs to user's organization
  const category = await db.select().from(categories).where(
    and(
      eq(categories.id, categoryId),
      eq(categories.organizationId, member.organizationId)
    )
  ).get();

  if (!category) {
    return new Response('Invalid category', { status: 400 });
  }

  const startTime = new Date();
  const id = nanoid();

  await db.insert(timeEntries).values({
    id,
    userId: locals.user.id,
    organizationId: member.organizationId,
    clientId,
    categoryId,
    startTime,
    description,
  });

  // Add tags if provided
  if (tags.length > 0) {
    await db.insert(timeEntryTags).values(
      tags.map((tagId: string) => ({
        timeEntryId: id,
        tagId,
      }))
    );
  }

  return new Response(JSON.stringify({ id, startTime }), { status: 200 });
};