-- Drop tables if they exist
DROP TABLE IF EXISTS shared;
DROP TABLE IF EXISTS shared_types;

-- Create table for shared types
CREATE TABLE shared_types (
    key VARCHAR(50) PRIMARY KEY -- Type key (e.g., 'WORKSPACE', 'RICE')
);

-- Create table for shared items
CREATE TABLE shared (
    id UUID NOT NULL PRIMARY KEY,         -- Unique identifier
    slug VARCHAR(75) NOT NULL UNIQUE,     -- Unique user-friendly identifier
    type VARCHAR(15) NOT NULL REFERENCES shared_types(key) ON DELETE CASCADE, -- Foreign key to shared_types
    version VARCHAR(10) NOT NULL,         -- Data version
    os VARCHAR(30) NOT NULL,              -- Operating system
    name VARCHAR(75) NOT NULL,            -- Name of the rice
    author VARCHAR(100) NOT NULL,         -- Name of the author
    token UUID NOT NULL,                  -- Unique authorization token
    visits INTEGER DEFAULT 0 NOT NULL,    -- Visit counter, initialized to 0
    level INTEGER DEFAULT 0 NOT NULL,     -- Level: 0 (Public), 1 (Verified)
    created_at TIMESTAMP DEFAULT NOW(),   -- Creation date
    updated_at TIMESTAMP                  -- Last update date
);

-- Insert default types
INSERT INTO shared_types (key) VALUES ('WORKSPACE'), ('RICE');

-- Create function to increment visit count
CREATE OR REPLACE FUNCTION increment_visits(slug_param TEXT)
RETURNS VOID AS $$
BEGIN
  UPDATE shared
  SET visits = visits + 1
  WHERE slug = slug_param;
END;
$$ LANGUAGE plpgsql;