import * as path from "path";
import * as vscode from "vscode";
import { resolveTaskLocations } from "@/commands/resolveTaskLocations";
import { TASK_FILE_EXTENSION } from "@/model/taskFile";
import { FsTaskRepository } from "@/storage/FsTaskRepository";
import { NodeFileSystem } from "@/storage/NodeFileSystem";
import { VscodeConfigProvider } from "@/storage/VscodeConfigProvider";
import { registerTaskCommands } from "@/ui/taskCommands";
import { registerTaskDecorations } from "@/ui/taskDecorations";
import { registerTaskDiagnostics } from "@/ui/taskDiagnostics";
import { TaskDashboardPanel } from "@/views/taskDashboardPanel";
import { TaskKanbanPanel } from "@/views/taskKanbanPanel";
import { TaskTreeProvider } from "@/views/taskTreeProvider";

export function activate(context: vscode.ExtensionContext) {
	const fileSystem = new NodeFileSystem();
	const config = new VscodeConfigProvider();
	const repo = new FsTaskRepository(fileSystem, TASK_FILE_EXTENSION);
	const tree = new TaskTreeProvider(repo, config);

	const onTasksMutated = (): void => {
		tree.refresh();
		TaskDashboardPanel.refreshIfOpen();
		TaskKanbanPanel.refreshIfOpen();
	};

	context.subscriptions.push(
		vscode.window.registerTreeDataProvider("xboctukFlow.tasks", tree),
	);

	for (const location of resolveTaskLocations(config)) {
		const taskPattern = path
			.join(location.folderPath, `*${TASK_FILE_EXTENSION}`)
			.replace(/\\/g, "/");
		const watcher = vscode.workspace.createFileSystemWatcher(taskPattern);
		watcher.onDidCreate(onTasksMutated);
		watcher.onDidChange(onTasksMutated);
		watcher.onDidDelete(onTasksMutated);
		context.subscriptions.push(watcher);
	}

	const statusBarItem = vscode.window.createStatusBarItem(
		vscode.StatusBarAlignment.Left,
	);
	statusBarItem.text = "$(checklist) Tasks";
	statusBarItem.command = "xboctukFlow.openDashboard";
	statusBarItem.tooltip = "XBOCTuK Flow — Open Dashboard";
	statusBarItem.show();
	context.subscriptions.push(statusBarItem);

	registerTaskDiagnostics(context);
	registerTaskDecorations(context);

	registerTaskCommands(context, {
		repo,
		config,
		tree,
		onTasksMutated: () => {
			TaskDashboardPanel.refreshIfOpen();
			TaskKanbanPanel.refreshIfOpen();
		},
	});
}

export function deactivate() {}