using Astralis;
using Inversion;
using Statum;
using UsmWeb;

int main(string[] args) {
    int port = 8080;
    string? repo_dir = null;

    for (int i = 1; i < args.length; i++) {
        var arg = args[i];
        if (arg == "--repo" && i + 1 < args.length) {
            repo_dir = args[++i];
        } else if (arg.has_prefix("--repo=")) {
            repo_dir = arg.substring("--repo=".length);
        } else if (arg.has_prefix("--port=")) {
            port = int.parse(arg.substring("--port=".length));
        } else {
            port = int.parse(arg);
        }
    }

    repo_dir = repo_dir ?? Environment.get_variable("USM_WEB_REPO_DIR");

    try {
        var application = new WebApplication(port);
        application.use_compression();
        application.add_module<StatumModule>();

        var web_config = application.container.create_transient_scope().resolve<WebConfig>();
        // Precedence: --repo argument > USM_WEB_REPO_DIR > the "usm-web"
        // section's "repo" key (UsmWebConfig.load) > /repo
        var config = UsmWebConfig.load(web_config, repo_dir);
        application.add_singleton<UsmWebConfig>(() => config);
        application.add_singleton<RepositoryService>();

        var statum = application.configure_with<StatumConfigurator>();

        // spry:pages-begin
        statum.add_page<HomePage, HomeEntrypoint>();
        statum.add_page<RepoBrowsePage, RepoBrowseEntrypoint>();
        statum.add_page<PackageDetailPage, PackageDetailEntrypoint>();
        // spry:pages-end

        // spry:actions-begin
        statum.action<SearchPackagesAction>();
        // spry:actions-end

        // spry:resources-begin
        statum.add_resource<MainCssResource>();
        // spry:resources-end

        // USM-serving endpoints. The exact /repo/{name}/PACKAGES.usml and
        // /repo/{name}/repo.usmr routes must precede /repo/{name}/{file}
        // (which also matches them), and the /{file} catch-all — serving
        // only /install-usm.sh — must come last.
        application.add_endpoint<PackagesListingEndpoint>(new EndpointRoute("/repo/{name}/PACKAGES.usml"));
        application.add_endpoint<RepositoryDefinitionEndpoint>(new EndpointRoute("/repo/{name}/repo.usmr"));
        application.add_endpoint<PackageDownloadEndpoint>(new EndpointRoute("/repo/{name}/{file}"));
        if (config.installer == InstallerSource.PATH) {
            application.add_endpoint<InstallerScriptEndpoint>(new EndpointRoute("/{file}"));
        }

        application.run();
        return 0;
    } catch (Error e) {
        printerr("[usm-web] Error: %s\n", e.message);
        return 1;
    }
}