-- Support tickets
CREATE TABLE IF NOT EXISTS support_tickets (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    subject VARCHAR(500) NOT NULL,
    category VARCHAR(50) NOT NULL DEFAULT 'GENERAL', -- GENERAL, BILLING, ACCOUNT, LEAD, JOB
    status VARCHAR(20) NOT NULL DEFAULT 'OPEN',       -- OPEN, IN_PROGRESS, RESOLVED, CLOSED
    priority VARCHAR(10) NOT NULL DEFAULT 'NORMAL',   -- LOW, NORMAL, HIGH, URGENT
    assigned_to UUID REFERENCES users(id),
    resolved_at TIMESTAMPTZ,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

-- Support ticket messages
CREATE TABLE IF NOT EXISTS support_ticket_messages (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    ticket_id UUID NOT NULL REFERENCES support_tickets(id) ON DELETE CASCADE,
    sender_id UUID NOT NULL REFERENCES users(id),
    body TEXT NOT NULL,
    is_internal BOOLEAN NOT NULL DEFAULT false,  -- true = staff-only note
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_support_tickets_user_id ON support_tickets(user_id);
CREATE INDEX IF NOT EXISTS idx_support_tickets_status ON support_tickets(status);
CREATE INDEX IF NOT EXISTS idx_support_ticket_messages_ticket_id ON support_ticket_messages(ticket_id);