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

fn actual_column(name: &str, udt_name: &str, nullable: bool) -> super::ActualColumn {
    return super::ActualColumn {
        default: std::option::Option::None,
        generated: "NEVER".to_owned(),
        identity: "NO".to_owned(),
        name: name.to_owned(),
        nullable,
        numeric_precision: std::option::Option::None,
        numeric_scale: std::option::Option::None,
        udt_name: udt_name.to_owned(),
    };
}

#[test]
fn pre_003_fix_001_v000_resource_is_relocated_without_changing_legacy_sql() {
    assert_eq!(crate::V000_RESOURCES.len(), 1);
    let resource = crate::V000_RESOURCES[0];
    assert_eq!(resource.id, "tables/001_ksp_store_schema_migrations.sql");
    assert_eq!(
        resource.sql,
        "CREATE TABLE ksp_store_schema_migrations (\n    version BIGINT PRIMARY KEY,\n    name TEXT NOT NULL,\n    checksum TEXT NOT NULL,\n    applied_at TIMESTAMPTZ NOT NULL\n);\n",
    );
    return;
}

#[test]
fn pre_003_fix_001_v001_resources_are_split_and_idempotent_by_object_family() {
    assert_eq!(crate::V001_RESOURCES.len(), 40);
    let table_resources = crate::V001_RESOURCES.iter().filter(|resource| return resource.id.starts_with("tables/")).collect::<std::vec::Vec<_>>();
    let constraint_resources = crate::V001_RESOURCES.iter().filter(|resource| return resource.id.starts_with("constraints/")).collect::<std::vec::Vec<_>>();
    let index_resources = crate::V001_RESOURCES.iter().filter(|resource| return resource.id.starts_with("indexes/")).collect::<std::vec::Vec<_>>();
    assert_eq!(table_resources.len(), 4);
    assert_eq!(constraint_resources.len(), 35);
    assert_eq!(index_resources.len(), 1);
    for resource in table_resources {
        assert!(resource.sql.contains("CREATE TABLE IF NOT EXISTS"));
        assert!(resource.sql.contains("ADD COLUMN IF NOT EXISTS"));
    }
    for resource in constraint_resources {
        assert!(resource.sql.contains("IF NOT EXISTS"));
    }
    for resource in index_resources {
        assert!(resource.sql.contains("CREATE INDEX IF NOT EXISTS"));
    }
    return;
}

#[test]
fn pre_003_fix_001_external_extra_columns_are_accepted_only_when_they_cannot_block_ksp_inserts() {
    let nullable = actual_column("external_nullable", "text", true);
    assert!(nullable.is_non_blocking_extra());
    let mut with_default = actual_column("external_default", "text", true);
    with_default.default = std::option::Option::Some("'x'::text".to_owned());
    assert!(!with_default.is_non_blocking_extra());
    let mut identity = actual_column("external_identity", "int8", true);
    identity.identity = "YES".to_owned();
    assert!(!identity.is_non_blocking_extra());
    let mut generated = actual_column("external_generated", "text", true);
    generated.generated = "ALWAYS".to_owned();
    assert!(!generated.is_non_blocking_extra());
    let blocking = actual_column("external_required", "text", false);
    assert!(!blocking.is_non_blocking_extra());
    return;
}

#[test]
fn pre_003_fix_001_required_column_matching_ignores_integer_precision_but_requires_numeric_20_0() {
    let expected_int = super::ColumnContract {
        name: "version",
        nullable: false,
        numeric_precision: std::option::Option::None,
        numeric_scale: std::option::Option::None,
        udt_name: "int8",
    };
    let mut actual_int = actual_column("version", "int8", false);
    actual_int.numeric_precision = std::option::Option::Some(64);
    actual_int.numeric_scale = std::option::Option::Some(0);
    assert!(actual_int.matches(&expected_int));
    let expected_numeric = super::ColumnContract {
        name: "slot",
        nullable: false,
        numeric_precision: std::option::Option::Some(20),
        numeric_scale: std::option::Option::Some(0),
        udt_name: "numeric",
    };
    let mut actual_numeric = actual_column("slot", "numeric", false);
    actual_numeric.numeric_precision = std::option::Option::Some(20);
    actual_numeric.numeric_scale = std::option::Option::Some(0);
    assert!(actual_numeric.matches(&expected_numeric));
    actual_numeric.numeric_precision = std::option::Option::Some(19);
    assert!(!actual_numeric.matches(&expected_numeric));
    return;
}

#[test]
fn pre_003_fix_001_catalog_normalization_and_resource_owned_constraint_definition_are_deterministic() {
    let normalized = super::normalize_catalog_sql("CHECK ((slot >= (0)::numeric) AND (slot <= (18446744073709551615)::numeric))");
    assert_eq!(normalized, "checkslot>=0andslot<=18446744073709551615");
    let resource = crate::V001_RESOURCES.iter().find(|resource| return resource.id == "constraints/006_ck_ksp_raw_transactions_slot.sql");
    assert!(resource.is_some(), "V001 slot constraint resource must remain embedded");
    let resource = match resource {
        std::option::Option::Some(value) => value,
        std::option::Option::None => return,
    };
    let expected = super::expected_constraint_definition(resource.sql, "ck_ksp_raw_transactions_slot");
    assert_eq!(expected.as_deref(), std::option::Option::Some(normalized.as_str()));
    assert_ne!(expected.as_deref(), std::option::Option::Some("checkslot>=0andslot<=10"));
    return;
}