-- Project status enum
CREATE TYPE project_status AS ENUM ('active', 'maintained', 'archived', 'hidden');

-- Projects table
CREATE TABLE projects (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    slug TEXT NOT NULL UNIQUE,
    title TEXT NOT NULL,
    description TEXT NOT NULL,
    status project_status NOT NULL DEFAULT 'active',
    github_repo TEXT,
    demo_url TEXT,
    priority INTEGER NOT NULL DEFAULT 0,
    icon TEXT,
    last_github_activity TIMESTAMPTZ,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

-- Indexes for common queries
CREATE INDEX idx_projects_status ON projects(status);
CREATE INDEX idx_projects_priority ON projects(priority DESC);
CREATE INDEX idx_projects_slug ON projects(slug);

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

CREATE TRIGGER update_projects_updated_at BEFORE UPDATE ON projects
    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();