// file: crates/ksp-app-backfill-desk/tests/dependency_boundary.rs
// version: 1

//! Final dependency-boundary checks for the KSP Backfill desktop application.

#![forbid(unsafe_code)]
#![deny(unreachable_pub)]
#![warn(missing_docs)]

fn app_root() -> std::path::PathBuf {
    return std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));
}

fn read_text(path: &std::path::Path) -> String {
    let source = std::fs::read_to_string(path);
    assert!(source.is_ok(), "unable to read {}", path.display());
    return match source {
        std::result::Result::Ok(value) => value,
        std::result::Result::Err(_) => String::new(),
    };
}

#[test]
fn pre_013_manifest_ksp_dependency_surface_is_exact_and_backend_neutral() {
    let manifest = read_text(app_root().join("Cargo.toml").as_path());
    let dependency_section = manifest.split("[dependencies]").nth(1).and_then(|tail| return tail.split("[dev-dependencies]").next());
    assert!(dependency_section.is_some(), "Backfill Desk manifest should expose a dependency section");
    let dependency_section = match dependency_section {
        std::option::Option::Some(value) => value,
        std::option::Option::None => return,
    };
    let ksp_dependencies = dependency_section
        .lines()
        .filter_map(|line| {
            let name = line.split('=').next().map(str::trim);
            return match name {
                std::option::Option::Some(value) if value.starts_with("ksp-") => std::option::Option::Some(value),
                _ => std::option::Option::None,
            };
        })
        .collect::<std::collections::BTreeSet<_>>();
    assert_eq!(
        ksp_dependencies,
        std::collections::BTreeSet::from([
            "ksp-config-lib",
            "ksp-core-lib",
            "ksp-job-api",
            "ksp-job-backfill-lib",
            "ksp-logging-lib",
            "ksp-onchain-transport-lib",
            "ksp-store-lib",
        ])
    );
    for forbidden in ["ksp-store-api", "ksp-store-postgres-lib", "tokio-postgres", "reqwest", "tonic", "yellowstone-grpc-proto", "mpl-token-metadata"] {
        assert!(!dependency_section.contains(forbidden), "Backfill Desk manifest owns forbidden dependency {forbidden}");
    }
}

#[test]
fn pre_013_production_sources_do_not_cross_into_physical_store_or_provider_clients() {
    let source_root = app_root().join("src");
    let entries = std::fs::read_dir(source_root.as_path());
    assert!(entries.is_ok(), "Backfill Desk source directory should be readable");
    let entries = match entries {
        std::result::Result::Ok(value) => value,
        std::result::Result::Err(_) => return,
    };
    for entry in entries.flatten() {
        let path = entry.path();
        if path.extension().and_then(std::ffi::OsStr::to_str) != std::option::Option::Some("rs") {
            continue;
        }
        let source = read_text(path.as_path());
        for forbidden in ["ksp_store_api", "ksp_store_postgres_lib", "tokio_postgres", "reqwest::", "tonic::", "yellowstone_grpc_proto"] {
            assert!(!source.contains(forbidden), "{} crosses forbidden dependency boundary via {forbidden}", path.display());
        }
    }
}