-- Chattyness Server Schema Tables
-- PostgreSQL 18 with PostGIS
--
-- Server-wide configuration, global resources, and settings

\set ON_ERROR_STOP on

BEGIN;

-- =============================================================================
-- Server Configuration (Singleton)
-- =============================================================================

CREATE TABLE server.config (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),

    name public.nonempty_text NOT NULL,
    description TEXT,
    welcome_message TEXT,

    default_scene_bounds public.scene_bounds NOT NULL
        DEFAULT ST_MakeEnvelope(0, 0, 800, 600, 0),
    max_users_per_channel INTEGER NOT NULL DEFAULT 50
        CHECK (max_users_per_channel > 0 AND max_users_per_channel <= 1000),

    message_rate_limit INTEGER NOT NULL DEFAULT 10 CHECK (message_rate_limit > 0),
    message_rate_window_seconds INTEGER NOT NULL DEFAULT 60 CHECK (message_rate_window_seconds > 0),

    allow_guest_access BOOLEAN NOT NULL DEFAULT true,
    allow_user_uploads BOOLEAN NOT NULL DEFAULT true,
    require_email_verification BOOLEAN NOT NULL DEFAULT false,

    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),

    CONSTRAINT chk_server_config_singleton CHECK (id = '00000000-0000-0000-0000-000000000001'::UUID)
);

COMMENT ON TABLE server.config IS 'Server-wide configuration settings (singleton table)';

INSERT INTO server.config (id, name, description) VALUES (
    '00000000-0000-0000-0000-000000000001'::UUID,
    'Chattyness Server',
    'A 2D virtual chat world'
);

COMMIT;