import { existsSync } from "node:fs";
import { join } from "node:path";
import { LEGACY_PROJECT_CONFIG_DIR, PROJECT_CONFIG_DIR } from "./constants";

/**
 * Files that make a folder a repo's Paradev config. A folder is judged by
 * these, not by existing: pdev keeps its own settings and prompts in
 * `<repo>/.paradev/` too.
 */
const CONFIG_FILES = [
	"config.toml",
	"config.local.toml",
	"config.json",
	"config.local.json",
	"ports.json",
	"setup.sh",
	"teardown.sh",
	"run.sh",
];

export function hasProjectConfigFiles(dir: string): boolean {
	return CONFIG_FILES.some((file) => existsSync(join(dir, file)));
}

/**
 * The config folder a checkout uses: `.paradev`, or `.superset` while that
 * still holds the config and `.paradev` does not. New config goes in
 * `.paradev`, and a repo configured in `.superset` keeps being edited there.
 */
export function resolveProjectConfigDirName(root: string): string {
	if (hasProjectConfigFiles(join(root, PROJECT_CONFIG_DIR))) {
		return PROJECT_CONFIG_DIR;
	}
	if (hasProjectConfigFiles(join(root, LEGACY_PROJECT_CONFIG_DIR))) {
		return LEGACY_PROJECT_CONFIG_DIR;
	}
	return PROJECT_CONFIG_DIR;
}

export function resolveProjectConfigDir(root: string): string {
	return join(root, resolveProjectConfigDirName(root));
}