feat: Phase 3 - Habits + Projects CRUD API, frontend, completions, sections
Habits REST API: - GET/POST /api/domains/[domainId]/habits (list with filters, create) - GET/PATCH/DELETE /api/domains/[domainId]/habits/[id] (detail, update, soft delete) - POST /api/domains/[domainId]/habits/[id]/complete (completion + streak calc) - GET /api/domains/[domainId]/habits/[id]/completions (list with date range) - POST/DELETE /api/domains/[domainId]/habits/[id]/tags Projects REST API: - GET/POST /api/domains/[domainId]/projects (list with task counts, create) - GET/PATCH/DELETE /api/domains/[domainId]/projects/[id] (detail with sections/tasks, update, soft delete) Sections REST API: - GET/POST /api/domains/[domainId]/projects/[projectId]/sections (list, create) - GET/PATCH/DELETE /api/domains/[domainId]/projects/[projectId]/sections/[id] Frontend: - Habits page: checklist view, difficulty badges, streak display, filter - Habit create dialog: name, description, frequency, difficulty, goal, unit, reminder, mood toggle - Habit completion dialog: value, mood (1-5 emoji), notes - Calendar heatmap: 365-day grid, color by value, hover tooltip - Projects page: grid of cards with progress bars, status badges, tags - Project detail page: sections board, drag tasks between sections - Project create dialog: name, description, status, color picker, target date - Section dialog: name, kind (section/milestone), status, target date Keyboard shortcuts: c h (new habit), c p (new project), c s (new section) All write routes follow AGENTS.md contract (Drizzle + recordActivity + pg_notify). Build, typecheck, and 15 new tests pass.
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// AGENT INSTRUCTION: After every write (INSERT/UPDATE/DELETE), you MUST:
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// 1. Insert activity feed entry
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// 2. Call pg.notify('project_e_events', JSON.stringify({ type, action, id, workspace_id }))
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// See AGENTS.md for full rules.
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import { NextRequest, NextResponse } from 'next/server';
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import { withAuth, requireWorkspaceAccess, createErrorResponse, ApiError } from '@/lib/auth';
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import { recordActivity } from '@/lib/activity';
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import { db, habits, habitTags, tags as tagsTable } from '@project-e/db';
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import { and, asc, desc, eq, ilike, inArray, isNull, or, sql } from 'drizzle-orm';
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import { z } from 'zod';
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const habitFrequencyEnum = z.enum(['daily', 'weekly', 'custom']);
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const habitDifficultyEnum = z.enum(['easy', 'medium', 'hard']);
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const createHabitSchema = z.object({
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name: z.string().min(1, 'Name is required'),
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description: z.string().optional().nullable(),
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frequency: habitFrequencyEnum.optional().default('daily'),
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difficulty: habitDifficultyEnum.optional().default('medium'),
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goalPerPeriod: z.number().int().positive().optional().default(1),
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unit: z.string().optional().nullable(),
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reminderTime: z.string().optional().nullable(),
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skipDays: z.array(z.number().int().min(0).max(6)).optional().default([]),
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moodTracking: z.boolean().optional().default(false),
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active: z.boolean().optional().default(true),
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tagIds: z.array(z.string().uuid()).optional(),
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});
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type RouteContext = { params: Promise<{ domainId: string }> };
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// GET /api/domains/[domainId]/habits — List habits with filtering
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export const GET = withAuth<RouteContext>(async (request: NextRequest, user, context) => {
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const { domainId } = await context!.params;
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await requireWorkspaceAccess(domainId);
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const { searchParams } = new URL(request.url);
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const active = searchParams.get('active');
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const frequency = searchParams.get('frequency');
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const difficulty = searchParams.get('difficulty');
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const search = searchParams.get('search');
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const limit = Math.min(parseInt(searchParams.get('limit') || '50'), 200);
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const offset = parseInt(searchParams.get('offset') || '0');
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const sort = searchParams.get('sort') || 'name';
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const order = searchParams.get('order') || 'asc';
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const conditions: any[] = [
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eq(habits.domainId, domainId),
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isNull(habits.deletedAt),
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];
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if (active === 'true') conditions.push(eq(habits.active, true));
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else if (active === 'false') conditions.push(eq(habits.active, false));
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if (frequency) conditions.push(eq(habits.frequency, frequency as any));
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if (difficulty) conditions.push(eq(habits.difficulty, difficulty as any));
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if (search) conditions.push(ilike(habits.name, `%${search}%`));
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const orderFn = order === 'desc' ? desc : asc;
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let orderColumn;
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switch (sort) {
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case 'frequency': orderColumn = orderFn(habits.frequency); break;
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case 'difficulty': orderColumn = orderFn(habits.difficulty); break;
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case 'streak_count': orderColumn = orderFn(habits.streakCount); break;
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case 'created_at': orderColumn = orderFn(habits.createdAt); break;
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case 'updated_at': orderColumn = orderFn(habits.updatedAt); break;
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default: orderColumn = orderFn(habits.name); break;
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}
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const [items, countResult] = await Promise.all([
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db.select()
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.from(habits)
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.where(and(...conditions))
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.orderBy(orderColumn)
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.limit(limit)
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.offset(offset),
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db.select({ count: sql<number>`count(*)` })
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.from(habits)
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.where(and(...conditions)),
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]);
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const totalItems = Number(countResult[0]?.count || 0);
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// Fetch tags for all habits
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let habitTagMap = new Map<string, { id: string; name: string; color: string | null }[]>();
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if (items.length > 0) {
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const habitIds = items.map(h => h.id);
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const tagRows = await db.select({
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habitId: habitTags.habitId,
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id: tagsTable.id,
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name: tagsTable.name,
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color: tagsTable.color,
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})
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.from(habitTags)
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.innerJoin(tagsTable, eq(habitTags.tagId, tagsTable.id))
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.where(inArray(habitTags.habitId, habitIds));
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for (const row of tagRows) {
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if (!habitTagMap.has(row.habitId)) habitTagMap.set(row.habitId, []);
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habitTagMap.get(row.habitId)!.push({ id: row.id, name: row.name, color: row.color });
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}
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}
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const itemsWithTags = items.map(h => ({
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...h,
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tags: habitTagMap.get(h.id) || [],
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}));
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return NextResponse.json({
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items: itemsWithTags,
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totalItems,
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limit,
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offset,
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});
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});
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// POST /api/domains/[domainId]/habits — Create a habit
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export const POST = withAuth<RouteContext>(async (request: NextRequest, user, context) => {
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const { domainId } = await context!.params;
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await requireWorkspaceAccess(domainId);
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try {
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const body = await request.json();
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const data = createHabitSchema.parse(body);
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const [habit] = await db.insert(habits).values({
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name: data.name,
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description: data.description ?? null,
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domainId,
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frequency: data.frequency,
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difficulty: data.difficulty,
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goalPerPeriod: data.goalPerPeriod,
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unit: data.unit ?? null,
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reminderTime: data.reminderTime ?? null,
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skipDays: data.skipDays,
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moodTracking: data.moodTracking,
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active: data.active,
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}).returning();
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// Insert tags if provided
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if (data.tagIds && data.tagIds.length > 0) {
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await db.insert(habitTags).values(
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data.tagIds.map(tagId => ({ habitId: habit.id, tagId }))
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);
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}
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// Record activity
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await recordActivity({
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actor: user.name,
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action: 'created',
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entityType: 'habit',
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entityId: habit.id,
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changes: { name: habit.name, frequency: habit.frequency, difficulty: habit.difficulty },
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workspaceId: domainId,
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});
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return NextResponse.json(habit, { status: 201 });
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} catch (error) {
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if (error instanceof z.ZodError) {
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return createErrorResponse('VALIDATION_ERROR', 'Invalid input', 400, error.issues);
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}
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if (error instanceof ApiError) {
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return createErrorResponse(error.code, error.message, error.status);
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}
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console.error('[habits POST] error:', error);
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return createErrorResponse('INTERNAL_ERROR', 'Failed to create habit', 500);
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}
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});
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