CREATE TABLE moderation_log (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    moderator_id UUID NOT NULL REFERENCES users(id),
    target_type VARCHAR(20) NOT NULL CHECK (target_type IN ('place', 'service')),
    target_id UUID NOT NULL,
    action VARCHAR(20) NOT NULL CHECK (action IN ('approve', 'reject', 'request_changes', 'publish', 'archive')),
    comment TEXT,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE INDEX idx_moderation_log_target ON moderation_log(target_type, target_id);
CREATE INDEX idx_moderation_log_moderator_id ON moderation_log(moderator_id);

CREATE TABLE payments (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES users(id),
    type VARCHAR(20) NOT NULL CHECK (type IN ('subscription', 'donation', 'listing_fee', 'booking_commission')),
    provider VARCHAR(20) NOT NULL CHECK (provider IN ('cloudpayments', 'stripe')),
    provider_payment_id VARCHAR(255),
    amount INT NOT NULL,
    currency VARCHAR(3) DEFAULT 'RUB',
    status VARCHAR(20) NOT NULL CHECK (status IN ('pending', 'succeeded', 'failed', 'refunded')),
    metadata JSONB,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE INDEX idx_payments_user_id ON payments(user_id);
CREATE INDEX idx_payments_status ON payments(status);
CREATE INDEX idx_payments_provider_id ON payments(provider, provider_payment_id);

CREATE TABLE subscriptions (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES users(id),
    plan VARCHAR(50) NOT NULL CHECK (plan IN ('studio_listing', 'executor_promo', 'premium_user')),
    status VARCHAR(20) NOT NULL CHECK (status IN ('active', 'cancelled', 'expired')),
    current_period_start TIMESTAMPTZ,
    current_period_end TIMESTAMPTZ,
    provider_subscription_id VARCHAR(255),
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE TABLE visitor_sessions (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID REFERENCES users(id),
    coordinates GEOGRAPHY(Point, 4326) NOT NULL,
    last_active_at TIMESTAMPTZ NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE INDEX idx_visitor_sessions_coordinates ON visitor_sessions USING GIST (coordinates);
CREATE INDEX idx_visitor_sessions_last_active ON visitor_sessions(last_active_at);