import * as ts from 'typescript';
import * as path from 'path';
import * as fs from 'fs';

const verboseLogging = false;
const MAX_RECURSION_DEPTH = 10; // 最大递归深度，防止无限递归

const log = (...args: any[]) => {
    if (verboseLogging) {
        console.log('[tscBuilder]', ...args);
    }
};

export const OAK_IGNORE_TAGS = [
    '@oak-ignore',
    '@oak-ignore-asynccontext',
];

// 定义自定义配置的类型
interface OakBuildChecksConfig {
    context?: {
        checkAsyncContext?: boolean; // 是否启用 AsyncContext 检查，默认启用
        targetModules?: string[]; // 目标模块列表，默认 ['@project/context/BackendRuntimeContext']
    }
}

// 扩展的配置类型
interface ExtendedTsConfig {
    compilerOptions?: ts.CompilerOptions;
    oakBuildChecks?: OakBuildChecksConfig;
    [key: string]: any; // 允许其他自定义字段
}

// 自定义诊断信息接口
interface CustomDiagnostic {
    file: ts.SourceFile;
    start: number;
    length: number;
    messageText: string;
    category: ts.DiagnosticCategory;
    code: number;
}

// ANSI 颜色代码
const colors = {
    reset: '\x1b[0m',
    cyan: '\x1b[36m',
    red: '\x1b[91m',
    yellow: '\x1b[93m',
    gray: '\x1b[90m'
} as const;

// 解析命令行参数
function parseArgs(pargs: string[]): string {
    const args: string[] = pargs.slice(2);
    let configPath = 'tsconfig.json';

    for (let i = 0; i < args.length; i++) {
        if (args[i] === '-p' || args[i] === '--project') {
            if (i + 1 < args.length) {
                configPath = args[i + 1];
                break;
            } else {
                console.error('error: option \'-p, --project\' argument missing');
                process.exit(1);
            }
        }
    }

    return configPath;
}

// 读取自定义配置
function readCustomConfig(configPath: string): OakBuildChecksConfig {
    const configFile = ts.readConfigFile(configPath, ts.sys.readFile);

    if (configFile.error) {
        return {}; // 返回默认配置
    }

    const config = configFile.config as ExtendedTsConfig;

    // 返回自定义配置，如果不存在则返回默认值
    return config.oakBuildChecks || {
    };
}

function printDiagnostic(diagnostic: ts.Diagnostic | CustomDiagnostic, index: number) {
    if (diagnostic.file && diagnostic.start !== undefined) {
        const { line, character } = diagnostic.file.getLineAndCharacterOfPosition(
            diagnostic.start
        );
        const message = ts.flattenDiagnosticMessageText(
            diagnostic.messageText,
            '\n'
        );
        const isError = diagnostic.category === ts.DiagnosticCategory.Error;
        const category = isError ? 'error' : 'warning';
        const categoryColor = isError ? colors.red : colors.yellow;

        console.log(
            `${index + 1}.→ ${colors.cyan}${diagnostic.file.fileName}${colors.reset}:${colors.yellow}${line + 1}${colors.reset}:${colors.yellow}${character + 1}${colors.reset} - ${categoryColor}${category}${colors.reset} ${colors.gray}TS${diagnostic.code}${colors.reset}: ${message}`
        );
    } else {
        const isError = diagnostic.category === ts.DiagnosticCategory.Error;
        const category = isError ? 'error' : 'warning';
        const categoryColor = isError ? colors.red : colors.yellow;

        console.log(
            `${index + 1}.→ ${categoryColor}${category}${colors.reset} ${colors.gray}TS${diagnostic.code}${colors.reset}: ${ts.flattenDiagnosticMessageText(diagnostic.messageText, '\n')}`
        );
    }
}

function performCustomChecks(
    program: ts.Program,
    typeChecker: ts.TypeChecker,
    customConfig: OakBuildChecksConfig
): CustomDiagnostic[] {
    const diagnostics: CustomDiagnostic[] = [];

    // 如果自定义检查被禁用，直接返回
    if (!customConfig.context?.checkAsyncContext) {
        console.log('Custom AsyncContext checks are disabled.');
        return diagnostics;
    }

    const functionsWithContextCalls = new Set<ts.Symbol>();
    const checkedFunctions = new Map<ts.Symbol, boolean>();

    // 遍历所有源文件
    for (const sourceFile of program.getSourceFiles()) {
        // 跳过声明文件和 node_modules
        if (sourceFile.isDeclarationFile || sourceFile.fileName.includes('node_modules')) {
            continue;
        }

        // 遍历 AST 节点
        visitNode(sourceFile, 0);
    }

    function resolveModuleName(moduleName: string, containingFile: string): string | undefined {
        const compilerOptions = program.getCompilerOptions();
        const resolvedModule = ts.resolveModuleName(
            moduleName,
            containingFile,
            compilerOptions,
            ts.sys
        );

        return resolvedModule.resolvedModule?.resolvedFileName;
    }

    function normalizeModulePath(filePath: string): string {
        // 规范化路径，移除 node_modules 和文件扩展名
        return filePath
            .replace(/\\/g, '/')
            .replace(/\.(ts|tsx|js|jsx|d\.ts)$/, '');
    }

    function visitNode(node: ts.Node, deepth: number): void {
        if (deepth > MAX_RECURSION_DEPTH) {
            log(`[DEBUG] 达到最大递归深度，停止进一步检查`);
            return;
        }

        // 检查 AsyncContext 方法调用
        checkAsyncContextMethodCall(node);

        //检查函数调用（检查是否调用了包含 context 的函数）
        checkFunctionCall(node);

        // 递归遍历子节点
        ts.forEachChild(node, (i) => visitNode(i, deepth + 1));
    }

    function checkAsyncContextMethodCall(node: ts.Node): void {
        // 只检查方法调用表达式
        if (!ts.isCallExpression(node)) {
            return;
        }

        // 检查是否是属性访问表达式
        if (!ts.isPropertyAccessExpression(node.expression)) {
            return;
        }

        // 如果上一层是return，则先跳过，让外层函数调用来处理
        if (ts.isReturnStatement(node.parent)) {
            return;
        }

        // 检查箭头函数的隐式返回，让外层函数调用来处理
        // 例如：() => context.select()
        if (ts.isArrowFunction(node.parent) && node.parent.body === node) {
            return;
        }

        const propertyAccess = node.expression;
        const objectExpression = propertyAccess.expression;

        // 获取对象的类型
        const objectType = typeChecker.getTypeAtLocation(objectExpression);

        const targetModules = customConfig.context?.targetModules || ['@project/context/BackendRuntimeContext'];

        // 检查类型是否继承自 AsyncContext
        if (!isAsyncContextType(objectType, targetModules)) {
            return;
        }

        // 获取方法调用的返回类型
        const callSignature = typeChecker.getResolvedSignature(node);
        if (!callSignature) {
            return;
        }

        const returnType = typeChecker.getReturnTypeOfSignature(callSignature);

        // 只检查返回 Promise 的方法
        if (!isPromiseType(returnType)) {
            return;
        }

        // 检查是否被 await 修饰  
        if (!isAwaited(node)) {
            const sourceFile = node.getSourceFile();

            // 检查是否有忽略注释
            if (hasIgnoreComment(node, sourceFile)) {
                return;
            }

            const methodName = propertyAccess.name.getText(sourceFile);
            const objectName = objectExpression.getText(sourceFile);

            diagnostics.push({
                file: sourceFile,
                start: node.getStart(sourceFile),
                length: node.getWidth(sourceFile),
                messageText: `未await的context调用可能导致事务不受控: ${objectName}.${methodName}() 需要使用 await`,
                category: ts.DiagnosticCategory.Warning,
                code: 9100
            });
        }
    }

    function hasIgnoreComment(node: ts.Node, sourceFile: ts.SourceFile): boolean {
        const fullText = sourceFile.getFullText();

        // 检查当前节点及其父节点（向上查找最多3层）
        let currentNode: ts.Node | undefined = node;
        let depth = 0;
        const maxDepth = 5;

        while (currentNode && depth < maxDepth) {
            // 检查前导注释
            const nodeFullStart = currentNode.getFullStart();
            const leadingComments = ts.getLeadingCommentRanges(fullText, nodeFullStart);

            if (leadingComments && leadingComments.length > 0) {
                for (const comment of leadingComments) {
                    const commentText = fullText.substring(comment.pos, comment.end);
                    if (isIgnoreComment(commentText)) {
                        return true;
                    }
                }
            }

            // 检查尾随注释
            const nodeEnd = currentNode.getEnd();
            const trailingComments = ts.getTrailingCommentRanges(fullText, nodeEnd);

            if (trailingComments && trailingComments.length > 0) {
                for (const comment of trailingComments) {
                    const commentText = fullText.substring(comment.pos, comment.end);
                    if (isIgnoreComment(commentText)) {
                        return true;
                    }
                }
            }

            // 向上查找父节点
            currentNode = currentNode.parent;
            depth++;

            // 如果遇到函数边界，停止查找
            if (currentNode && (
                ts.isFunctionDeclaration(currentNode) ||
                ts.isFunctionExpression(currentNode) ||
                ts.isArrowFunction(currentNode) ||
                ts.isMethodDeclaration(currentNode)
            )) {
                break;
            }
        }

        return false;
    }

    function isIgnoreComment(commentText: string): boolean {
        return OAK_IGNORE_TAGS.some(tag => commentText.includes(tag));
    }

    function isAsyncContextType(type: ts.Type, modules: string[]): boolean {
        // 检查类型本身
        if (checkTypeSymbol(type, modules)) {
            return true;
        }

        // 检查联合类型（例如 RuntimeCxt = FRC | BRC）
        if (type.isUnion()) {
            return type.types.some(t => isAsyncContextType(t, modules));
        }

        // 检查交叉类型
        if (type.isIntersection()) {
            return type.types.some(t => isAsyncContextType(t, modules));
        }

        // 检查基类型（继承关系）
        const baseTypes = type.getBaseTypes?.() || [];
        for (const baseType of baseTypes) {
            if (isAsyncContextType(baseType, modules)) {
                return true;
            }
        }

        return false;
    }

    function checkTypeSymbol(type: ts.Type, modules: string[]): boolean {
        const symbol = type.getSymbol();
        if (!symbol) {
            return false;
        }

        const declarations = symbol.getDeclarations();
        if (!declarations || declarations.length === 0) {
            return false;
        }

        for (const declaration of declarations) {
            const sourceFile = declaration.getSourceFile();
            const fileName = sourceFile.fileName;
            const normalizedFileName = normalizeModulePath(fileName);

            // 检查是否来自目标模块
            for (const moduleName of modules) {
                // 直接路径匹配（处理已解析的路径）
                if (normalizedFileName.includes(moduleName.replace(/\\/g, '/'))) {
                    return true;
                }

                // 尝试解析模块别名
                const resolvedPath = resolveModuleName(moduleName, sourceFile.fileName);
                if (resolvedPath) {
                    const normalizedResolvedPath = normalizeModulePath(resolvedPath);
                    if (normalizedFileName === normalizedResolvedPath ||
                        normalizedFileName.includes(normalizedResolvedPath)) {
                        return true;
                    }
                }

                // 检查模块说明符（从 import 语句中获取）
                const importDeclarations = sourceFile.statements.filter(ts.isImportDeclaration);
                for (const importDecl of importDeclarations) {
                    if (importDecl.moduleSpecifier && ts.isStringLiteral(importDecl.moduleSpecifier)) {
                        const importPath = importDecl.moduleSpecifier.text;
                        if (importPath === moduleName || importPath.includes(moduleName)) {
                            // 检查当前符号是否来自这个 import
                            const importClause = importDecl.importClause;
                            if (importClause) {
                                const importSymbol = typeChecker.getSymbolAtLocation(importDecl.moduleSpecifier);
                                if (importSymbol && isSymbolRelated(symbol, importSymbol)) {
                                    return true;
                                }
                            }
                        }
                    }
                }
            }
        }

        return false;
    }

    function isSymbolRelated(symbol: ts.Symbol, moduleSymbol: ts.Symbol): boolean {
        // 检查符号是否与模块相关
        const exports = typeChecker.getExportsOfModule(moduleSymbol);
        return exports.some(exp => exp === symbol || exp.name === symbol.name);
    }

    function isAwaited(node: ts.Node): boolean {
        let parent = node.parent;

        // 向上遍历父节点，查找 await 表达式
        while (parent) {
            // 直接被 await 修饰
            if (ts.isAwaitExpression(parent) && parent.expression === node) {
                return true;
            }

            // 在 await 表达式的子表达式中
            if (ts.isAwaitExpression(parent)) {
                const current = parent.expression;
                if (isNodeInSubtree(current, node)) {
                    return true;
                }
            }

            // 如果遇到这些节点，停止向上查找
            if (ts.isFunctionDeclaration(parent) ||
                ts.isFunctionExpression(parent) ||
                ts.isArrowFunction(parent) ||
                ts.isMethodDeclaration(parent)) {
                break;
            }

            parent = parent.parent;
        }

        return false;
    }

    function isPromiseType(type: ts.Type): boolean {
        // 检查类型符号
        const symbol = type.getSymbol();
        if (symbol) {
            const name = symbol.getName();
            if (name === 'Promise') {
                return true;
            }
        }

        // 检查类型字符串表示
        const typeString = typeChecker.typeToString(type);
        if (typeString.startsWith('Promise<') || typeString === 'Promise') {
            return true;
        }

        // 检查联合类型（例如 Promise<T> | undefined）
        if (type.isUnion()) {
            return type.types.some(t => isPromiseType(t));
        }

        // 检查基类型
        const baseTypes = type.getBaseTypes?.() || [];
        for (const baseType of baseTypes) {
            if (isPromiseType(baseType)) {
                return true;
            }
        }

        return false;
    }

    function isNodeInSubtree(root: ts.Node, target: ts.Node): boolean {
        if (root === target) {
            return true;
        }

        let found = false;
        ts.forEachChild(root, (child: ts.Node) => {
            if (found) return;
            if (child === target || isNodeInSubtree(child, target)) {
                found = true;
            }
        });

        return found;
    }

    function checkFunctionCall(node: ts.Node): void {
        // 只检查调用表达式
        if (!ts.isCallExpression(node)) {
            return;
        }

        // 打印所有函数调用
        const sourceFile = node.getSourceFile();
        const callText = node.expression.getText(sourceFile);
        log(`[DEBUG] 检查函数调用: ${callText}`);

        // 获取被调用函数的符号
        const signature = typeChecker.getResolvedSignature(node);
        if (!signature) {
            log(`[DEBUG] ${callText} - 无法获取签名`);
            return;
        }

        const declaration = signature.getDeclaration();
        if (!declaration) {
            log(`[DEBUG] ${callText} - 无法获取声明`);
            return;
        }

        log(`[DEBUG] ${callText} - 声明类型: ${ts.SyntaxKind[declaration.kind]}`);

        // 检查这个函数是否包含 context 调用
        const hasContext = containsContextCall(declaration);
        log(`[DEBUG] ${callText} - 包含context调用: ${hasContext}`);

        if (hasContext) {
            const returnType = typeChecker.getReturnTypeOfSignature(signature);

            // 如果函数不返回 Promise，说明内部已经正确处理了异步调用
            // 此时调用该函数不需要 await
            if (!isPromiseType(returnType)) {
                return;
            }

            // 标记当前所在的函数
            const containingFunction = findContainingFunction(node);
            if (containingFunction) {
                const fname = getFunctionName(containingFunction);
                if (fname) {  // 只有当有名称时才标记，但不影响后续检查
                    const symbol = typeChecker.getSymbolAtLocation(fname);
                    if (symbol) {
                        functionsWithContextCalls.add(symbol);
                    }
                }
            }

            if (ts.isReturnStatement(node.parent)) {
                // 如果在 return 语句中，不在这里报警告
                // 警告会传播到调用当前函数的地方
                return;
            }

            // 检查箭头函数的隐式返回
            // 例如：() => someFunction()
            if (ts.isArrowFunction(node.parent) && node.parent.body === node) {
                return;
            }

            // 检查是否被 await
            if (!isAwaited(node)) {
                const sourceFile = node.getSourceFile();

                // 检查是否有忽略注释
                if (hasIgnoreComment(node, sourceFile)) {
                    return;
                }

                const functionName = getFunctionCallName(node, sourceFile);

                diagnostics.push({
                    file: sourceFile,
                    start: node.getStart(sourceFile),
                    length: node.getWidth(sourceFile),
                    messageText: `未await的函数调用可能导致事务不受控: ${functionName}() 内部包含 context 调用，需要使用 await`,
                    category: ts.DiagnosticCategory.Warning,
                    code: 9101
                });
            }
        }
    }

    // 辅助函数：检查函数声明是否包含 context 调用
    function containsContextCall(node: ts.Node): boolean {
        const symbol = getSymbolOfDeclaration(node as ts.SignatureDeclaration);

        log(`[DEBUG containsContextCall] 节点类型: ${ts.SyntaxKind[node.kind]}, 有符号: ${!!symbol}`);

        if (symbol && checkedFunctions.has(symbol)) {
            log(`[DEBUG containsContextCall] 使用缓存结果: ${checkedFunctions.get(symbol)}`);
            return checkedFunctions.get(symbol)!;
        }


        let hasContextCall = false;

        function visit(n: ts.Node): void {
            if (hasContextCall) return;

            // 检查是否是 context 方法调用
            if (ts.isCallExpression(n) &&
                ts.isPropertyAccessExpression(n.expression)) {
                const objectType = typeChecker.getTypeAtLocation(n.expression.expression);
                const targetModules = customConfig.context?.targetModules ||
                    ['@project/context/BackendRuntimeContext'];

                if (isAsyncContextType(objectType, targetModules)) {
                    log(`[DEBUG containsContextCall] 找到context调用: ${n.expression.getText()}`);
                    hasContextCall = true;
                    return;
                }
            }

            // 递归检查调用的其他函数
            if (ts.isCallExpression(n)) {
                const signature = typeChecker.getResolvedSignature(n);
                if (signature) {
                    const declaration = signature.getDeclaration();
                    if (declaration && !isSameOrDescendant(declaration, node)) {
                        // 避免无限递归
                        const symbol = getSymbolOfDeclaration(declaration);

                        // 先检查缓存
                        if (symbol && functionsWithContextCalls.has(symbol)) {
                            hasContextCall = true;
                            return;
                        }

                        // 如果缓存中没有，递归检查该函数
                        if (containsContextCall(declaration)) {
                            hasContextCall = true;
                            return;
                        }
                    }
                }
            }

            ts.forEachChild(n, visit);
        }

        visit(node);
        log(`[DEBUG containsContextCall] 最终结果: ${hasContextCall}`);

        if (symbol) {
            checkedFunctions.set(symbol, hasContextCall);
        }
        return hasContextCall;
    }

    // 辅助函数：查找包含当前节点的函数
    function findContainingFunction(node: ts.Node): ts.FunctionLikeDeclaration | undefined {
        let current = node.parent;
        while (current) {
            if (ts.isFunctionDeclaration(current) ||
                ts.isFunctionExpression(current) ||
                ts.isArrowFunction(current) ||
                ts.isMethodDeclaration(current)) {
                return current;
            }
            current = current.parent;
        }
        return undefined;
    }

    // 辅助函数：获取函数名称节点
    function getFunctionName(func: ts.FunctionLikeDeclaration): ts.Node | undefined {
        if (ts.isFunctionDeclaration(func) || ts.isMethodDeclaration(func)) {
            return func.name;
        }
        return undefined;
    }

    // 辅助函数：获取函数调用的名称
    function getFunctionCallName(node: ts.CallExpression, sourceFile: ts.SourceFile): string {
        if (ts.isIdentifier(node.expression)) {
            return node.expression.getText(sourceFile);
        } else if (ts.isPropertyAccessExpression(node.expression)) {
            return node.expression.name.getText(sourceFile);
        }
        return node.expression.getText(sourceFile);
    }

    // 辅助函数：检查是否是同一个节点或后代
    function isSameOrDescendant(node: ts.Node, ancestor: ts.Node): boolean {
        let current: ts.Node | undefined = node;
        while (current) {
            if (current === ancestor) {
                return true;
            }
            current = current.parent;
        }
        return false;
    }

    // 辅助函数：获取声明的符号
    function getSymbolOfDeclaration(declaration: ts.SignatureDeclaration): ts.Symbol | undefined {
        // 处理有名称的声明（函数声明、方法声明等）
        if ('name' in declaration && declaration.name) {
            return typeChecker.getSymbolAtLocation(declaration.name);
        }

        // 处理箭头函数：尝试从父节点（变量声明）获取符号
        if (ts.isArrowFunction(declaration) || ts.isFunctionExpression(declaration)) {
            const parent = declaration.parent;
            if (ts.isVariableDeclaration(parent) && parent.name) {
                return typeChecker.getSymbolAtLocation(parent.name);
            }
            // 处理作为属性值的情况
            if (ts.isPropertyAssignment(parent) && parent.name) {
                return typeChecker.getSymbolAtLocation(parent.name);
            }
        }

        return undefined;
    }

    return diagnostics;
}

function compile(configPath: string): void {
    // 读取自定义配置
    const customConfig = readCustomConfig(configPath);

    // 读取 tsconfig.json
    const configFile = ts.readConfigFile(configPath, ts.sys.readFile);

    if (configFile.error) {
        console.error(ts.formatDiagnostic(configFile.error, {
            getCanonicalFileName: (f: string) => f,
            getCurrentDirectory: process.cwd,
            getNewLine: () => '\n'
        }));
        process.exit(1);
    }

    // 解析配置
    const parsedConfig = ts.parseJsonConfigFileContent(
        configFile.config,
        ts.sys,
        path.dirname(configPath)
    );

    if (parsedConfig.errors.length > 0) {
        parsedConfig.errors.forEach((diagnostic: ts.Diagnostic) => {
            console.error(ts.formatDiagnostic(diagnostic, {
                getCanonicalFileName: (f: string) => f,
                getCurrentDirectory: process.cwd,
                getNewLine: () => '\n'
            }));
        });
        process.exit(1);
    }

    // 创建编译程序
    let program: ts.Program;
    if (parsedConfig.options.incremental || parsedConfig.options.composite) {
        const host = ts.createIncrementalCompilerHost(parsedConfig.options);
        const incrementalProgram = ts.createIncrementalProgram({
            rootNames: parsedConfig.fileNames,
            options: parsedConfig.options,
            host: host,
            configFileParsingDiagnostics: ts.getConfigFileParsingDiagnostics(parsedConfig),
        });
        program = incrementalProgram.getProgram();
    } else {
        program = ts.createProgram({
            rootNames: parsedConfig.fileNames,
            options: parsedConfig.options,
        });
    }

    // 获取类型检查器
    const typeChecker = program.getTypeChecker();

    // 执行自定义检查（传入自定义配置）
    const customDiagnostics = performCustomChecks(program, typeChecker, customConfig);

    if (customDiagnostics.length > 0) {
        log(`Found ${customDiagnostics.length} custom diagnostics.`);
        console.log(`${colors.yellow}Oak-Compiler 发现了相关问题，如果确定逻辑正确，可以使用注释标签来忽略:${colors.reset}`);
        OAK_IGNORE_TAGS.forEach(tag => {
            console.log(`  ${colors.cyan}// ${tag}${colors.reset}`);
        });
        console.log('');
        customDiagnostics.forEach(printDiagnostic);
    }

    // 执行编译
    const emitResult = program.emit();

    // 获取诊断信息
    const allDiagnostics: readonly ts.Diagnostic[] = [
        ...ts.getPreEmitDiagnostics(program),
        ...emitResult.diagnostics,
    ];

    // 输出诊断信息
    allDiagnostics.forEach(printDiagnostic);

    // 输出编译统计
    const errorCount = allDiagnostics.filter(d => d.category === ts.DiagnosticCategory.Error).length;
    const warningCount = allDiagnostics.filter(d => d.category === ts.DiagnosticCategory.Warning).length;

    if (errorCount > 0 || warningCount > 0) {
        if (allDiagnostics.length > 0) {
            console.log('');
        }

        const parts: string[] = [];
        if (errorCount > 0) {
            parts.push(`${errorCount} error${errorCount !== 1 ? 's' : ''}`);
        }
        if (warningCount > 0) {
            parts.push(`${warningCount} warning${warningCount !== 1 ? 's' : ''}`);
        }
        console.log(`Found ${parts.join(' and ')}.`);
    }

    if (errorCount > 0) {
        process.exit(1);
    }

    console.log('Compilation completed successfully.');
}

export const build = (pwd: string, args: any[]) => {
    // 执行编译
    const configPathArg: string = parseArgs(args);
    let configPath: string;

    // 判断参数是目录还是文件
    if (fs.existsSync(configPathArg)) {
        const stat = fs.statSync(configPathArg);
        if (stat.isDirectory()) {
            configPath = path.resolve(configPathArg, 'tsconfig.json');
        } else {
            configPath = path.resolve(configPathArg);
        }
    } else {
        configPath = path.resolve(pwd, configPathArg);
        if (!fs.existsSync(configPath)) {
            const dirPath = path.resolve(pwd, configPathArg);
            if (fs.existsSync(dirPath) && fs.statSync(dirPath).isDirectory()) {
                configPath = path.join(dirPath, 'tsconfig.json');
            }
        }
    }

    if (!fs.existsSync(configPath)) {
        console.error(`error TS5058: The specified path does not exist: '${configPath}'.`);
        process.exit(1);
    }

    compile(configPath);
}