ALTER TABLE test_publications
    ADD COLUMN IF NOT EXISTS target_scope VARCHAR(16) NOT NULL DEFAULT 'internal'
        CHECK (target_scope IN ('internal', 'external'));

UPDATE test_publications AS publication
SET target_scope = COALESCE(
    (
        SELECT review.decided_visibility
        FROM publication_reviews AS review
        WHERE review.publication_id = publication.id
          AND review.decision = 'approved'
          AND review.decided_visibility IN ('internal', 'external')
        ORDER BY review.created_at DESC, review.id DESC
        LIMIT 1
    ),
    CASE WHEN item_rule.visibility IN ('internal', 'external') THEN item_rule.visibility END,
    source.visibility
)
FROM source_item_versions AS version
JOIN source_items AS source ON source.id = version.source_item_id
LEFT JOIN source_item_scope_overrides AS item_rule ON item_rule.source_item_id = source.id
WHERE publication.source_item_version_id = version.id;

CREATE TABLE IF NOT EXISTS processing_confirmations (
    id VARCHAR(36) PRIMARY KEY,
    publication_id VARCHAR(36) NOT NULL
        REFERENCES test_publications(id) ON DELETE RESTRICT,
    operator_ref VARCHAR(128) NOT NULL,
    reason VARCHAR(500) NOT NULL,
    confirmed_at TIMESTAMPTZ NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    UNIQUE (publication_id)
);

CREATE INDEX IF NOT EXISTS idx_processing_confirmations_confirmed
    ON processing_confirmations (confirmed_at DESC, publication_id);