-- Import previews are immutable snapshots; applying one is an explicit admin action.
CREATE TABLE IF NOT EXISTS schedule_imports (
    id UUID PRIMARY KEY,
    route_id INTEGER REFERENCES routes(id) ON DELETE SET NULL,
    source_url TEXT NOT NULL,
    source_hash TEXT NOT NULL,
    source JSONB NOT NULL,
    status TEXT NOT NULL CHECK (status IN ('inspection', 'ready', 'applied')),
    payload JSONB,
    created_by INTEGER,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    applied_at TIMESTAMPTZ
);
CREATE INDEX IF NOT EXISTS idx_schedule_imports_created ON schedule_imports(created_at DESC);

CREATE TABLE IF NOT EXISTS schedule_import_news (
    url TEXT PRIMARY KEY,
    title TEXT NOT NULL,
    published_date TEXT,
    content TEXT NOT NULL,
    content_hash TEXT NOT NULL,
    reviewed_hash TEXT,
    checked_at TIMESTAMPTZ NOT NULL DEFAULT now()
);