/** Test doubles for the desktop helper and tosu. */
import type { TosuFeed, TosuFrame } from '../tosu';
import type { CaptureOptions, Desktop, OcrLine, SessionInfo, WindowInfo } from './desktop';

export function windowInfo(overrides: Partial<WindowInfo> = {}): WindowInfo {
	return {
		hwnd: 100,
		pid: 10,
		title: 'osu!',
		className: 'WindowsForms10.Window.8.app.0.1',
		exe: 'C:\\vash\\osu\\osu!.exe',
		visible: true,
		minimized: false,
		x: 0,
		y: 0,
		width: 1296,
		height: 959,
		clientX: 8,
		clientY: 31,
		clientWidth: 1280,
		clientHeight: 920,
		...overrides
	};
}

export class FakeDesktop implements Desktop {
	sessionInfo: SessionInfo = {
		sessionId: 1,
		consoleSessionId: 1,
		inputDesktop: 'Default',
		screenWidth: 1920,
		screenHeight: 1080,
		idleMs: 0
	};
	running: { pid: number; path: string }[] = [];
	windowList: WindowInfo[] = [];
	ocrLines: OcrLine[] = [];
	calls: { cmd: string; args: unknown[] }[] = [];
	focusResult = true;

	private note(cmd: string, ...args: unknown[]) {
		this.calls.push({ cmd, args });
	}
	called(cmd: string) {
		return this.calls.filter((call) => call.cmd === cmd);
	}

	async session() {
		return this.sessionInfo;
	}
	async windows(under: string) {
		this.note('windows', under);
		return this.windowList;
	}
	async window(hwnd: number) {
		return this.windowList.find((window) => window.hwnd === hwnd) ?? null;
	}
	async processes(under: string) {
		return this.running.filter((process) =>
			process.path.toLowerCase().startsWith(under.toLowerCase())
		);
	}
	async kill(pids: number[]) {
		this.note('kill', pids);
		this.running = this.running.filter((process) => !pids.includes(process.pid));
		return pids.length;
	}
	async close(pid: number) {
		this.note('close', pid);
		this.running = this.running.filter((process) => process.pid !== pid);
		this.windowList = this.windowList.filter((window) => window.pid !== pid);
		return 1;
	}
	async focus(hwnd: number) {
		this.note('focus', hwnd);
		return this.focusResult;
	}
	async move(hwnd: number, x: number, y: number) {
		this.note('move', hwnd, x, y);
		return true;
	}
	async setTitle(hwnd: number, title: string) {
		this.note('title', hwnd, title);
		const window = this.windowList.find((each) => each.hwnd === hwnd);
		if (window) window.title = title;
		return true;
	}
	async capture(options: CaptureOptions) {
		this.note('capture', options);
		const scale = options.scale ?? 1;
		return { width: Math.round(options.width * scale), height: Math.round(options.height * scale) };
	}
	async ocr(path: string) {
		this.note('ocr', path);
		return this.ocrLines;
	}
	async ocrReady() {
		return { language: 'en-US', maxDimension: 2600 };
	}
	async click(x: number, y: number) {
		this.note('click', x, y);
		return true;
	}
	async type(text: string) {
		return text.length;
	}
	async key() {}
	async stayAwake() {
		return true;
	}
	stop() {}
}

/** Stands in for TosuFeed: whatever frame the test sets is the fresh one. */
export function fakeTosu(frame: TosuFrame | null = null) {
	const feed = { frame, fresh: () => feed.frame };
	return feed as unknown as TosuFeed & { frame: TosuFrame | null };
}

export function tourneyFrame(left: string, right: string): TosuFrame {
	return { ipcState: 1, beatmapId: null, progress: null, teams: { left, right }, clients: [] };
}