-- Stock Analysis Database Schema
-- Run this SQL in your Supabase SQL Editor

-- Create user role enum
CREATE TYPE user_role AS ENUM ('ADMIN', 'STAFF');

-- Create users table
CREATE TABLE users (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    email VARCHAR(255) UNIQUE NOT NULL,
    name VARCHAR(255) NOT NULL,
    password_hash VARCHAR(255) NOT NULL,
    role user_role NOT NULL DEFAULT 'STAFF',
    is_active BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

-- Create index on email for faster lookups
CREATE INDEX idx_users_email ON users(email);

-- Create function to automatically update updated_at timestamp
CREATE OR REPLACE FUNCTION update_updated_at_column()
RETURNS TRIGGER AS $$
BEGIN
    NEW.updated_at = NOW();
    RETURN NEW;
END;
$$ language 'plpgsql';

-- Create trigger to call the function before update
CREATE TRIGGER update_users_updated_at BEFORE UPDATE ON users
FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();

-- Verify table creation
SELECT table_name FROM information_schema.tables WHERE table_schema = 'public';