feat: add docker and readme

database/init.sql

@@ -0,0 +1,60 @@
+BEGIN;
+
+-- Extensions
+CREATE EXTENSION IF NOT EXISTS pgcrypto; -- for gen_random_uuid()
+
+-- =======================================
+-- Tables
+-- =======================================
+
+-- Events
+CREATE TABLE IF NOT EXISTS events (
+    id              VARCHAR(8) PRIMARY KEY,
+    name            VARCHAR(100) NOT NULL,
+    date            DATE NOT NULL,
+    time            TIME NOT NULL,
+    location        VARCHAR(200) NOT NULL,
+    type            VARCHAR(20) NOT NULL CHECK (type IN ('limited','unlimited')),
+    attendee_limit  INTEGER CHECK (attendee_limit > 0),
+    user_id         VARCHAR(100) NOT NULL,
+    visibility      VARCHAR(20) NOT NULL DEFAULT 'public' CHECK (visibility IN ('public','private')),
+    created_at      TIMESTAMPTZ DEFAULT NOW(),
+    updated_at      TIMESTAMPTZ DEFAULT NOW()
+);
+
+-- RSVPs
+CREATE TABLE IF NOT EXISTS rsvps (
+    id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    event_id    VARCHAR(8) NOT NULL REFERENCES events(id) ON DELETE CASCADE,
+    name        VARCHAR(100) NOT NULL,
+    user_id     VARCHAR(100) NOT NULL,
+    created_at  TIMESTAMPTZ DEFAULT NOW(),
+    updated_at  TIMESTAMPTZ DEFAULT NOW()
+);
+
+-- =======================================
+-- Indexes
+-- =======================================
+CREATE INDEX IF NOT EXISTS idx_events_user_id  ON events(user_id);
+CREATE INDEX IF NOT EXISTS idx_events_date     ON events(date);
+CREATE INDEX IF NOT EXISTS idx_rsvps_event_id  ON rsvps(event_id);
+CREATE INDEX IF NOT EXISTS idx_rsvps_user_id   ON rsvps(user_id);
+
+-- =======================================
+-- Triggers (updated_at maintenance)
+-- =======================================
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$
+BEGIN
+  NEW.updated_at = NOW();
+  RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+DROP TRIGGER IF EXISTS update_events_updated_at ON events;
+CREATE TRIGGER update_events_updated_at
+  BEFORE UPDATE ON events
+  FOR EACH ROW
+  EXECUTE FUNCTION update_updated_at_column();
+
+COMMIT;