import type { StarshipConfig } from "../config.js";
import type { ModuleName } from "../modules/catalog.js";
import type { WorkspaceSnapshot } from "../modules/types.js";

export interface WorkspaceExecResult {
	stdout: string;
	stderr: string;
	code: number;
	killed: boolean;
}

export type WorkspaceExec = (
	command: string,
	args: string[],
	options: {
		cwd: string;
		timeout: number;
		maxOutputBytes: number;
		signal?: AbortSignal;
		environment: Readonly<Record<string, string | undefined>>;
	},
) => Promise<WorkspaceExecResult>;

export interface WorkspaceEntry {
	name: string;
	isFile: boolean;
	isDirectory: boolean;
}

export interface WorkspaceFileSystem {
	readFile(path: string, maxBytes: number): Promise<string | undefined>;
	readDirectory(path: string): Promise<readonly WorkspaceEntry[]>;
	fileExists(path: string): Promise<boolean>;
}

export interface WorkspaceRefreshInput {
	cwd: string;
	config: StarshipConfig;
	environment: Readonly<Record<string, string | undefined>>;
	homeDir: string;
	platform: NodeJS.Platform;
	hostname: string;
	username: string;
	exec: WorkspaceExec;
	fileSystem?: Partial<WorkspaceFileSystem>;
	fileExists?(path: string): Promise<boolean>;
	reason?: "initial" | "event" | "periodic";
	previous?: WorkspaceSnapshot;
	signal?: AbortSignal;
}

export interface CollectorContext {
	input: WorkspaceRefreshInput;
	fs: WorkspaceFileSystem;
	requirements: ReadonlyMap<ModuleName, ReadonlySet<string>>;
	entries(): Promise<readonly WorkspaceEntry[]>;
	options(name: ModuleName): Readonly<Record<string, unknown>>;
	needs(name: ModuleName, variable?: string): boolean;
}

export const PRIVATE_STYLE_SELECTOR = "__pi_style_selector";

export type MutableModuleSnapshot = Record<string, Record<string, string>>;