325 lines
19 KiB
Plaintext
325 lines
19 KiB
Plaintext
## Codebase Patterns
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- Project uses Next.js 16 with App Router, TypeScript, and TailwindCSS 4
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- Source files are in `src/` directory (app, components, lib, types)
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- Supabase is configured with @supabase/supabase-js and @supabase/ssr packages
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- Environment variables follow NEXT_PUBLIC_* convention for client-side access
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- Use `npm run typecheck` to run TypeScript type checking (tsc --noEmit)
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- Flowchart types exported from `src/types/flowchart.ts`
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- Supabase migrations go in `supabase/migrations/` with timestamp prefix (YYYYMMDDHHMMSS_*.sql)
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- Database has profiles table (linked to auth.users) and projects table (with flowchart_data JSONB)
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- RLS policies enforce user_id = auth.uid() for project access
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- Supabase client utilities in `src/lib/supabase/`: client.ts (browser), server.ts (App Router), middleware.ts (route protection)
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- Next.js middleware.ts at project root handles route protection using updateSession helper
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- Public auth routes: /login, /signup, /forgot-password, /reset-password
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- Protected routes: /dashboard, /editor/* (redirect to /login if unauthenticated)
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- Auth pages use 'use client' with useState, createClient() from lib/supabase/client.ts, and useRouter for redirects
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- For lists with client-side updates (delete/add), use wrapper client component that receives initialData from server component
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- Toast component in `src/components/Toast.tsx` for success/error notifications (auto-dismiss after 3s)
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- Admin operations use SUPABASE_SERVICE_ROLE_KEY (server-side only via server actions)
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- Admin users have is_admin=true in profiles table; check via .select('is_admin').eq('id', user.id).single()
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- React Flow editor is in `src/app/editor/[projectId]/` with page.tsx (server) and FlowchartEditor.tsx (client)
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- React Flow requires 'use client' and importing 'reactflow/dist/style.css'
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- Use toReactFlowNodes/toReactFlowEdges helpers to convert app types to React Flow types
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- Custom node components go in `src/components/editor/nodes/` with NodeProps<T> typing and useReactFlow() for updates
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- Register custom node types in nodeTypes object (memoized with useMemo) and pass to ReactFlow component
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---
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## 2026-01-21 - US-001
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- What was implemented: Project scaffolding and configuration
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- Files changed:
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- package.json - project dependencies and scripts
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- tsconfig.json - TypeScript configuration
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- next.config.ts - Next.js configuration
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- postcss.config.mjs - PostCSS with TailwindCSS
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- eslint.config.mjs - ESLint configuration
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- .env.example - environment variables template
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- .gitignore - git ignore rules
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- src/app/ - Next.js App Router pages
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- src/components/.gitkeep - components directory placeholder
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- src/lib/.gitkeep - lib directory placeholder
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- src/types/.gitkeep - types directory placeholder
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- **Learnings for future iterations:**
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- Next.js 16 uses `@tailwindcss/postcss` for TailwindCSS 4 integration
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- Use --src-dir flag for create-next-app to put source in src/ folder
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- npm package names can't have capital letters (use lowercase)
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- .gitignore needs explicit exclusion for .env files, but include .env.example
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---
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## 2026-01-21 - US-002
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- What was implemented: TypeScript types for flowchart data structures
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- Files changed:
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- src/types/flowchart.ts - new file with all flowchart type definitions
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- package.json - added typecheck script (tsc --noEmit)
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- **Learnings for future iterations:**
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- Position is a helper type for {x, y} coordinates used by nodes
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- FlowchartNode is a union type of DialogueNode | ChoiceNode | VariableNode
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- ChoiceOption is a separate type to make options array cleaner
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- All types use `export type` for TypeScript isolatedModules compatibility
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---
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## 2026-01-21 - US-003
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- What was implemented: Supabase schema for users and projects
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- Files changed:
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- supabase/migrations/20260121000000_create_profiles_and_projects.sql - new file with all database schema
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- **Learnings for future iterations:**
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- Supabase migrations are plain SQL files in supabase/migrations/ directory
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- Migration filenames use timestamp prefix (YYYYMMDDHHMMSS_description.sql)
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- RLS policies need separate policies for SELECT, INSERT, UPDATE, DELETE operations
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- Admin check policy uses EXISTS subquery to check is_admin flag on profiles table
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- projects table references profiles.id (not auth.users.id directly) for proper FK relationships
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- flowchart_data column uses JSONB type with default empty structure
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- Added auto-update trigger for updated_at timestamp on projects table
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---
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## 2026-01-21 - US-004
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- What was implemented: Supabase client configuration utilities
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- Files changed:
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- src/lib/supabase/client.ts - browser client using createBrowserClient from @supabase/ssr
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- src/lib/supabase/server.ts - server client for App Router with async cookies() API
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- src/lib/supabase/middleware.ts - middleware helper with updateSession function
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- src/lib/.gitkeep - removed (no longer needed)
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- **Learnings for future iterations:**
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- @supabase/ssr package provides createBrowserClient and createServerClient functions
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- Server client requires async cookies() from next/headers in Next.js 16
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- Middleware client returns both user object and supabaseResponse for route protection
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- Cookie handling uses getAll/setAll pattern for proper session management
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- setAll in server.ts wrapped in try/catch to handle Server Component limitations
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---
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## 2026-01-21 - US-005
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- What was implemented: Protected routes middleware for authentication
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- Files changed:
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- middleware.ts - new file at project root for route protection
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- **Learnings for future iterations:**
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- Next.js middleware.ts must be at project root (not in src/)
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- updateSession helper from lib/supabase/middleware.ts returns { user, supabaseResponse }
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- Use startsWith() for route matching to handle nested routes (e.g., /editor/*)
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- Matcher config excludes static files and images to avoid unnecessary middleware calls
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- Clone nextUrl before modifying pathname for redirects
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---
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## 2026-01-21 - US-006
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- What was implemented: Login page with email/password authentication
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- Files changed:
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- src/app/login/page.tsx - new file with login form and Supabase auth
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- **Learnings for future iterations:**
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- Auth pages use 'use client' directive since they need useState and form handling
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- Use createClient() from lib/supabase/client.ts for browser-side auth operations
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- supabase.auth.signInWithPassword returns { error } object for handling failures
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- useRouter from next/navigation for programmatic redirects after auth
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- Error state displayed in red alert box with dark mode support
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- Loading state disables submit button and shows "Signing in..." text
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- TailwindCSS dark mode uses dark: prefix (e.g., dark:bg-zinc-950)
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---
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## 2026-01-21 - US-007
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- What was implemented: Sign up page for invite-only account setup
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- Files changed:
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- src/app/signup/page.tsx - new file with signup form and Supabase auth
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- **Learnings for future iterations:**
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- Supabase invite tokens come via URL hash fragment (window.location.hash)
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- Parse hash with URLSearchParams after removing leading '#'
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- Check for type=invite or type=signup to detect invite flow
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- Use setSession() with access_token and refresh_token to establish session from invite link
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- For invited users, update password with updateUser() then create profile with upsert()
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- Use upsert() instead of insert() for profiles to handle edge cases
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- Validate password confirmation before submission (passwords match check)
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- display_name defaults to email prefix (split('@')[0])
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---
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## 2026-01-21 - US-008
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- What was implemented: Logout functionality component
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- Files changed:
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- src/components/LogoutButton.tsx - new client component with signOut and redirect
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- src/components/.gitkeep - removed (no longer needed)
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- **Learnings for future iterations:**
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- LogoutButton is a reusable component that will be used in the navbar (US-011)
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- Component uses 'use client' directive for client-side auth operations
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- Loading state prevents double-clicks during signOut
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- Styled with neutral zinc colors to work as a secondary button in navbars
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---
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## 2026-01-21 - US-009
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- What was implemented: Password reset - forgot password page
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- Files changed:
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- src/app/forgot-password/page.tsx - new file with forgot password form and email reset
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- **Learnings for future iterations:**
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- resetPasswordForEmail requires redirectTo option to specify where user lands after clicking reset link
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- Use `window.location.origin` to get the current site URL for redirectTo
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- Page shows different UI after success (conditional rendering with success state)
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- Use ' for apostrophe in JSX to avoid HTML entity issues
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- Follow same styling pattern as login page for consistency across auth pages
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---
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## 2026-01-21 - US-010
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- What was implemented: Password reset - set new password page
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- Files changed:
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- src/app/reset-password/page.tsx - new file with password reset form
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- src/app/login/page.tsx - updated to show success message from password reset
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- **Learnings for future iterations:**
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- Supabase recovery tokens come via URL hash fragment with type=recovery
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- Use setSession() with access_token and refresh_token from hash to establish recovery session
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- Show loading state while verifying token validity (tokenValid === null)
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- Show error state with link to request new reset if token is invalid
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- After password update, sign out the user and redirect to login with success message
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- Use query param (message=password_reset_success) to pass success state between pages
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- Login page uses useSearchParams to read and display success messages
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- Success messages styled with green background (bg-green-50)
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---
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## 2026-01-21 - US-011
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- What was implemented: Dashboard layout with navbar component
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- Files changed:
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- src/app/dashboard/layout.tsx - new file with dashboard layout wrapper
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- src/components/Navbar.tsx - new reusable navbar component
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- **Learnings for future iterations:**
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- Dashboard layout is a server component that fetches user data via createClient() from lib/supabase/server.ts
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- Navbar accepts userEmail prop to display current user
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- Layout wraps children with consistent max-w-7xl container and padding
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- Navbar uses Link component to allow clicking app title to go back to dashboard
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- Navbar has border-b styling with dark mode support for visual separation
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- Use gap-4 for spacing between navbar items (user email and logout button)
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---
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## 2026-01-21 - US-012
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- What was implemented: Dashboard page listing user projects
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- Files changed:
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- src/app/dashboard/page.tsx - new file with project listing, cards, and empty state
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- **Learnings for future iterations:**
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- Dashboard page is a server component that fetches projects directly from Supabase
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- Use .eq('user_id', user.id) for RLS-backed queries (though RLS also enforces this)
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- Order by updated_at descending to show most recent projects first
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- formatDate() helper with toLocaleDateString for human-readable dates
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- Project cards use Link component for navigation to /editor/[projectId]
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- Empty state uses dashed border (border-dashed) with centered content and icon
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- Hover effects on cards: border-blue-300, shadow-md, and text color change on title
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- Error state displayed if Supabase query fails
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---
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## 2026-01-21 - US-013
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- What was implemented: Create new project functionality
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- Files changed:
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- src/components/NewProjectButton.tsx - new client component with modal dialog
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- src/app/dashboard/page.tsx - added NewProjectButton to header area
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- src/app/signup/page.tsx - fixed lint error (setState in effect) by initializing email from searchParams
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- **Learnings for future iterations:**
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- Modal dialogs use fixed positioning with backdrop (bg-black/50) for overlay effect
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- Form submission uses Supabase insert with .select('id').single() to get the new record ID
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- Initialize flowchart_data with { nodes: [], edges: [] } for new projects
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- router.push() for programmatic navigation after successful creation
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- autoFocus on input for better UX when modal opens
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- Prevent modal close while loading (check isLoading before calling handleClose)
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- ESLint rule react-hooks/set-state-in-effect warns against synchronous setState in useEffect
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- Initialize state from searchParams directly in useState() instead of setting in useEffect
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---
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## 2026-01-21 - US-014
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- What was implemented: Delete project functionality with confirmation dialog and toast
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- Files changed:
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- src/components/ProjectCard.tsx - new client component replacing Link, with delete button and confirmation dialog
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- src/components/ProjectList.tsx - new wrapper component to manage project list state and toast notifications
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- src/components/Toast.tsx - new reusable toast notification component
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- src/app/dashboard/page.tsx - updated to use ProjectList instead of inline rendering
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- **Learnings for future iterations:**
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- To enable client-side state updates (like removing items), extract list rendering from server components into client components
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- ProjectList accepts initialProjects from server and manages state locally for immediate UI updates
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- Use onDelete callback pattern to propagate deletion events from child (ProjectCard) to parent (ProjectList)
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- Delete button uses e.stopPropagation() to prevent card click navigation when clicking delete
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- Confirmation dialogs should disable close/cancel while action is in progress (isDeleting check)
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- Toast component uses useCallback for handlers and auto-dismiss with setTimeout
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- Toast animations can use TailwindCSS animate-in utilities (fade-in, slide-in-from-bottom-4)
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- Delete icon appears on hover using group-hover:opacity-100 with parent group class
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---
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## 2026-01-21 - US-015
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- What was implemented: Rename project functionality
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- Files changed:
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- src/components/ProjectCard.tsx - added rename button, modal dialog, and Supabase update logic
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- src/components/ProjectList.tsx - added handleRename callback and toast notification
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- **Learnings for future iterations:**
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- Multiple action buttons on a card can be grouped in a flex container with gap-1
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- Rename modal follows same pattern as delete dialog: fixed positioning, backdrop, form
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- Use onKeyDown to handle Enter key for quick form submission
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- Reset form state (newName, error) when opening modal to handle edge cases
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- Check if name is unchanged before making API call to avoid unnecessary requests
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- Trim whitespace from input value before validation and submission
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- handleRename callback updates project name in state using map() to preserve list order
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---
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## 2026-01-21 - US-016
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- What was implemented: Admin invite user functionality
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- Files changed:
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- src/app/admin/invite/page.tsx - new admin-only page with access check (redirects non-admins)
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- src/app/admin/invite/InviteForm.tsx - client component with invite form and state management
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- src/app/admin/invite/actions.ts - server action using service role key to call inviteUserByEmail
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- src/components/Navbar.tsx - added isAdmin prop and "Invite User" link (visible only to admins)
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- src/app/dashboard/layout.tsx - fetches profile.is_admin and passes it to Navbar
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- .env.example - added SUPABASE_SERVICE_ROLE_KEY and NEXT_PUBLIC_SITE_URL
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- **Learnings for future iterations:**
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- Admin operations require SUPABASE_SERVICE_ROLE_KEY (server-side only, not NEXT_PUBLIC_*)
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- Use createClient from @supabase/supabase-js directly for admin client (not @supabase/ssr)
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- Admin client needs auth config: { autoRefreshToken: false, persistSession: false }
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- inviteUserByEmail requires redirectTo option for the signup link in email
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- Server actions ('use server') can access private env vars safely
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- Admin check should happen both in server component (redirect) and server action (double check)
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- Admin page uses its own layout (not dashboard layout) to have custom styling
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---
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## 2026-01-21 - US-017
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- What was implemented: Editor page with React Flow canvas
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- Files changed:
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- package.json - added reactflow dependency
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- src/app/editor/[projectId]/page.tsx - new server component that fetches project from Supabase, handles auth/not found, renders header with back link
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- src/app/editor/[projectId]/FlowchartEditor.tsx - new client component with React Flow canvas, Background component, type converters for nodes/edges
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- src/app/editor/[projectId]/loading.tsx - new loading state component with spinner
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- **Learnings for future iterations:**
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- React Flow requires 'use client' directive since it uses browser APIs
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- Import 'reactflow/dist/style.css' for default React Flow styling
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- Use useNodesState and useEdgesState hooks for managing nodes/edges state
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- Convert app types (FlowchartNode, FlowchartEdge) to React Flow types with helper functions
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- Next.js dynamic route params come as Promise in App Router 16+ (need to await params)
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- Use notFound() from next/navigation for 404 responses
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- React Flow canvas needs parent container with explicit height (h-full, h-screen)
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- Background component accepts variant (Dots, Lines, Cross) and gap/size props
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- Loading page (loading.tsx) provides automatic loading UI for async server components
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---
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## 2026-01-21 - US-018
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- What was implemented: Canvas pan and zoom controls
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- Files changed:
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- src/app/editor/[projectId]/FlowchartEditor.tsx - added Controls import and component
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- **Learnings for future iterations:**
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- React Flow Controls component provides zoom +/-, fitView, and lock buttons out of the box
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- Use position="bottom-right" prop to position controls in bottom-right corner
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- Pan (click-and-drag) and zoom (mouse wheel) are React Flow defaults, no extra config needed
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---
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## 2026-01-21 - US-019
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- What was implemented: Editor toolbar with add/save/export/import buttons
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- Files changed:
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- src/components/editor/Toolbar.tsx - new toolbar component with styled buttons
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- src/app/editor/[projectId]/FlowchartEditor.tsx - integrated toolbar with placeholder handlers
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- **Learnings for future iterations:**
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- Toolbar component accepts callback props for actions (onAddDialogue, onSave, etc.)
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- Node type buttons use color coding: blue (Dialogue), green (Choice), orange (Variable)
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- Action buttons (Save, Export, Import) use neutral bordered styling
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- FlowchartEditor now uses flex-col layout to stack toolbar above canvas
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- Placeholder handlers with TODO comments help track future implementation work
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---
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## 2026-01-21 - US-020
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- What was implemented: Custom DialogueNode component for displaying/editing character dialogue
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- Files changed:
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- src/components/editor/nodes/DialogueNode.tsx - new custom node component with editable speaker and text fields
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- src/app/editor/[projectId]/FlowchartEditor.tsx - registered DialogueNode as custom node type
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- **Learnings for future iterations:**
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- Custom React Flow nodes use NodeProps<T> for typing, where T is the data shape
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- Use useReactFlow() hook to get setNodes for updating node data from within the node component
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- Handle components need Position enum (Position.Top, Position.Bottom) for positioning
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- Custom handles can be styled with className and TailwindCSS, use ! prefix to override defaults (e.g., !h-3, !w-3)
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- Node types must be registered in a nodeTypes object and passed to ReactFlow component
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- Memoize nodeTypes with useMemo to prevent unnecessary re-renders
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- Custom node components go in src/components/editor/nodes/ directory
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---
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