-- Create dedicated user for navix application
CREATE USER navix_user WITH PASSWORD 'Aa123456';

-- Create database
CREATE DATABASE navix OWNER navix_user;

-- Grant privileges
GRANT ALL PRIVILEGES ON DATABASE navix TO navix_user;

-- Connect to navix database
\c navix;

-- Grant schema privileges
GRANT ALL ON SCHEMA public TO navix_user;
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO navix_user;
GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO navix_user;

-- Create users table
CREATE TABLE users (
    id SERIAL PRIMARY KEY,
    username VARCHAR(50) UNIQUE NOT NULL,
    email VARCHAR(255) UNIQUE NOT NULL,
    password_hash VARCHAR(255) NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- Create sections table
CREATE TABLE sections (
    id SERIAL PRIMARY KEY,
    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    name VARCHAR(100) NOT NULL,
    display_order INTEGER DEFAULT 0,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    UNIQUE(user_id, name)
);

-- Create apps table
CREATE TABLE apps (
    id SERIAL PRIMARY KEY,
    section_id INTEGER NOT NULL REFERENCES sections(id) ON DELETE CASCADE,
    name VARCHAR(100) NOT NULL,
    url TEXT NOT NULL,
    icon VARCHAR(255),
    description TEXT,
    display_order INTEGER DEFAULT 0,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- Create indexes for better query performance
CREATE INDEX idx_sections_user_id ON sections(user_id);
CREATE INDEX idx_apps_section_id ON apps(section_id);
CREATE INDEX idx_users_username ON users(username);
CREATE INDEX idx_users_email ON users(email);

-- Create updated_at trigger function
CREATE OR REPLACE FUNCTION update_updated_at_column()
RETURNS TRIGGER AS $$
BEGIN
    NEW.updated_at = CURRENT_TIMESTAMP;
    RETURN NEW;
END;
$$ language 'plpgsql';

-- Add triggers for updated_at
CREATE TRIGGER update_users_updated_at BEFORE UPDATE ON users
    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();

CREATE TRIGGER update_apps_updated_at BEFORE UPDATE ON apps
    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();

-- Grant privileges on all objects to navix_user
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON TABLES TO navix_user;
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON SEQUENCES TO navix_user;