PRAGMA foreign_keys=ON;
CREATE TABLE IF NOT EXISTS meta (key TEXT PRIMARY KEY,value TEXT NOT NULL);
CREATE TABLE IF NOT EXISTS sources (name TEXT PRIMARY KEY, revision TEXT NOT NULL, indexed INTEGER NOT NULL DEFAULT 0, documents INTEGER NOT NULL DEFAULT 0);
CREATE TABLE IF NOT EXISTS vulnerabilities (id TEXT PRIMARY KEY, published TEXT, modified TEXT, state TEXT, summary TEXT);
CREATE TABLE IF NOT EXISTS aliases (alias TEXT NOT NULL, vulnerability_id TEXT NOT NULL REFERENCES vulnerabilities(id) ON DELETE CASCADE, PRIMARY KEY(alias,vulnerability_id));
CREATE INDEX IF NOT EXISTS idx_aliases_vuln ON aliases(vulnerability_id);
CREATE TABLE IF NOT EXISTS affected_packages (
 id TEXT PRIMARY KEY, vulnerability_id TEXT NOT NULL REFERENCES vulnerabilities(id) ON DELETE CASCADE,
 ecosystem TEXT, package_name TEXT, ranges_json TEXT NOT NULL, versions_json TEXT NOT NULL, source TEXT NOT NULL);
CREATE INDEX IF NOT EXISTS idx_affected_vuln ON affected_packages(vulnerability_id);
CREATE INDEX IF NOT EXISTS idx_affected_package ON affected_packages(ecosystem,package_name);
CREATE TABLE IF NOT EXISTS cpe_matches (
    id TEXT PRIMARY KEY,
    vulnerability_id TEXT NOT NULL
        REFERENCES vulnerabilities(id) ON DELETE CASCADE,
    node_id TEXT REFERENCES cpe_nodes(id),
    criteria TEXT,
    vulnerable INTEGER,
    version_start_including TEXT,
    version_start_excluding TEXT,
    version_end_including TEXT,
    version_end_excluding TEXT,
    source TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_cpe_vuln ON cpe_matches(vulnerability_id);
CREATE TABLE IF NOT EXISTS cpe_nodes (
    id TEXT PRIMARY KEY,
    vulnerability_id TEXT NOT NULL
        REFERENCES vulnerabilities(id)
        ON DELETE CASCADE,
    parent_id TEXT REFERENCES cpe_nodes(id),
    operator TEXT NOT NULL
        CHECK (operator IN ('AND', 'OR')),
    negate INTEGER NOT NULL DEFAULT 0
        CHECK (negate IN (0, 1)),
    source TEXT NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_cpe_nodes_vuln
ON cpe_nodes(vulnerability_id);

CREATE INDEX IF NOT EXISTS idx_cpe_matches_node
ON cpe_matches(node_id);
-- Conditions expressed as AND, OR and negate are deliberately NOT converted into independent vulnerability assertions.

-- Preserve original Red Hat CSAF product IDs, relationships and status rules.
CREATE TABLE IF NOT EXISTS redhat_advisories (
  id TEXT PRIMARY KEY,
  title TEXT,
  initial_release_date TEXT,
  current_release_date TEXT,
  product_tree_json TEXT NOT NULL
);
CREATE TABLE IF NOT EXISTS redhat_advisory_cves (
  id TEXT PRIMARY KEY,
  advisory_id TEXT NOT NULL REFERENCES redhat_advisories(id) ON DELETE CASCADE,
  cve_id TEXT NOT NULL REFERENCES vulnerabilities(id) ON DELETE CASCADE,
  product_status_json TEXT NOT NULL,
  remediations_json TEXT NOT NULL,
  UNIQUE(advisory_id,cve_id)
);
CREATE INDEX IF NOT EXISTS idx_redhat_advisory_cves_cve
  ON redhat_advisory_cves(cve_id);