-- Intake sessions
CREATE TABLE IF NOT EXISTS intake_sessions (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    current_phase INTEGER DEFAULT 0,
    is_complete BOOLEAN DEFAULT 0,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- Intake answers (one per phase per session)
CREATE TABLE IF NOT EXISTS intake_answers (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    session_id INTEGER NOT NULL,
    phase INTEGER NOT NULL,
    fields_json TEXT, -- JSON: {field_name: value}
    nested_items_json TEXT, -- JSON: [{field1: val1, field2: val2}, ...]
    submitted_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (session_id) REFERENCES intake_sessions(id),
    UNIQUE(session_id, phase)
);

CREATE INDEX IF NOT EXISTS idx_intake_answers_session_id ON intake_answers(session_id);