import {log} from './log.js'
import {Lifecycle} from './util/lifecycle.js'
import {Input} from './vm/input.js'
import {Lexer} from "./vm/lexer.js";
import {Parser} from "./vm/parser.js";
import {commands} from "./vm/commands/index.js";
import {Executor} from "./vm/vm.js";
import {ConsoleDisplay, OutputManager, WlClipboard} from "./vm/output.js";
import {processPath} from "./vm/commands/command.js";
import * as fs from "node:fs";

;(async () => {
	const lifecycle = new Lifecycle()
	const input = new Input()
	input.adoptLifecycle(lifecycle)
	input.subscribe(line => log.verbose('input', { line }))

	const lexer = new Lexer(input)
	lexer.subscribe(token => log.verbose('token', token))

	const parser = new Parser(commands, lexer)
	parser.subscribe(exec => log.verbose('exec', exec))

	const output: OutputManager = {
		display: new ConsoleDisplay,
		clipboard: new WlClipboard,
	}

	const exec = new Executor(output, parser, input)
	exec.adoptLifecycle(lifecycle)

	console.log('`str` : An interactive string manipulation environment')
	console.log('Copyright (C) 2026 Garrett Mills <shout@garrettmills.dev>')
	console.log('')

	const rcFile = processPath('~/.str.rc')
	if ( fs.existsSync(rcFile) ) {
		log.verbose('rc', { rcFile })

		const rcFileContent = fs.readFileSync(rcFile).toString()
		await input.pushLines('\n' + rcFileContent)

		console.log('Successfully loaded ~/.str.rc\n')
	}

	exec.subscribe(state => state.outputSubject())
	input.setupPrompt()

	process.on('SIGINT', () => lifecycle.close())
})()