// file: crates/ksp-store-postgres-lib/unit_tests/schema_v003.rs
// version: 2

#[test]
fn pre_003_v003_resource_inventory_is_exact_and_ordered() {
    let resources = crate::V003_RESOURCES;
    assert_eq!(resources.len(), 25);
    let ids = resources.iter().map(|resource| return resource.id).collect::<std::vec::Vec<_>>();
    assert_eq!(ids.iter().filter(|id| return id.starts_with("tables/")).count(), 4);
    assert_eq!(ids.iter().filter(|id| return id.starts_with("constraints/")).count(), 18);
    assert_eq!(ids.iter().filter(|id| return id.starts_with("indexes/")).count(), 3);
    assert!(ids[..4].iter().all(|id| return id.starts_with("tables/")));
    assert!(ids[4..22].iter().all(|id| return id.starts_with("constraints/")));
    assert!(ids[22..].iter().all(|id| return id.starts_with("indexes/")));
    let mut unique = std::collections::BTreeSet::<&str>::new();
    for id in ids {
        assert!(unique.insert(id), "duplicate V003 resource id: {id}");
    }
    return;
}

#[test]
fn pre_003_v003_schema_is_additive_payload_bounded_and_hash_non_unique() {
    let sql = crate::V003_RESOURCES.iter().map(|resource| return resource.sql).collect::<std::vec::Vec<_>>().concat();
    for required in [
        "CREATE TABLE IF NOT EXISTS ksp_raw_transaction_variants",
        "CREATE TABLE IF NOT EXISTS ksp_raw_transaction_canonical_selectors",
        "CREATE TABLE IF NOT EXISTS ksp_raw_transaction_observation_variants",
        "CREATE TABLE IF NOT EXISTS ksp_raw_transaction_conflicts",
        "PRIMARY KEY (transaction_signature, variant_id)",
        "FOREIGN KEY (transaction_signature) REFERENCES ksp_raw_transactions(signature)",
        "FOREIGN KEY (observation_key) REFERENCES ksp_raw_transaction_observations(observation_key)",
        "octet_length(payload) <= 16777216",
        "origin_kind = 'native' OR origin_kind = 'synthetic'",
        "latest_relation = 'conflict' OR latest_relation = 'incomparable'",
        "latest_reason_code = 'content_hash_collision'",
        "latest_reason_code = 'unsupported_canonical_difference'",
    ] {
        assert!(sql.contains(required), "missing V003 schema invariant: {required}");
    }
    for forbidden in ["UNIQUE (content_hash", "UNIQUE(content_hash", "BIGSERIAL", "INSERT INTO", "UPDATE ksp_raw_transactions"] {
        assert!(!sql.contains(forbidden), "forbidden V003 migration behavior: {forbidden}");
    }
    return;
}

#[test]
fn pre_003_v003_observation_mapping_does_not_fabricate_legacy_rows() {
    let sql = crate::V003_RESOURCES.iter().map(|resource| return resource.sql).collect::<std::vec::Vec<_>>().concat();
    assert!(sql.contains("ksp_raw_transaction_observation_variants"));
    assert!(!sql.contains("SELECT observation_key FROM ksp_raw_transaction_observations"));
    assert!(!sql.contains("INSERT INTO ksp_raw_transaction_observation_variants"));
    return;
}