declare function toString(value: unknown): string;
declare function toNumber(value: unknown): number | null;
declare function toBoolean(value: unknown): boolean;
declare function toBigInt(value: unknown): bigint | null;
declare function toSymbol(value: unknown): symbol;

declare function toArray(value: unknown): unknown[] | null;
declare function toObject(value: unknown): Record<string, unknown> | null;
declare function toMap(value: unknown): Map<unknown, unknown> | null;
declare function toSet(value: unknown): Set<unknown> | null;
declare function toDate(value: unknown): Date | null;
declare function toRegExp(value: unknown): RegExp | null;
declare function toError(value: unknown): Error | null;
declare function toFunction(value: unknown): ((...args: any[]) => any) | null;
declare function toPromise(value: unknown): Promise<unknown> | null;
declare function toBuffer(value: unknown): Buffer | null;
declare function toTypedArray<T extends ArrayBufferView>(value: unknown, TypedArrayConstructor: new (buffer: ArrayBuffer) => T): T | null;

interface TypeMap {
  'undefined': undefined;
  'null': null;
  'boolean': boolean;
  'number': number;
  'string': string;
  'symbol': symbol;
  'bigint': bigint;
  'object': object;
  'array': any[];
  'function': Function;
  'date': Date;
  'regexp': RegExp;
  'error': Error;
  'promise': Promise<any>;
  'map': Map<any, any>;
  'set': Set<any>;
  'weakmap': WeakMap<any, any>;
  'weakset': WeakSet<any>;
  'int8array': Int8Array;
  'uint8array': Uint8Array;
  'uint8clampedarray': Uint8ClampedArray;
  'int16array': Int16Array;
  'uint16array': Uint16Array;
  'int32array': Int32Array;
  'uint32array': Uint32Array;
  'float32array': Float32Array;
  'float64array': Float64Array;
  'bigint64array': BigInt64Array;
  'biguint64array': BigUint64Array;
  'generatorfunction': GeneratorFunction;
  'asyncfunction': AsyncFunction;
  'asyncgeneratorfunction': AsyncGeneratorFunction;
  'proxy': any;
  'dataview': DataView;
  'arraybuffer': ArrayBuffer;
  'sharedarraybuffer': SharedArrayBuffer;
  'arguments': IArguments;
  'buffer': Buffer;
  'stream': NodeJS.ReadableStream | NodeJS.WritableStream;
  'eventemitter': NodeJS.EventEmitter;
  'element': Element;
  'node': Node;
  'window': Window;
  'document': Document;
  'global': typeof globalThis;
}

type TypeName = keyof TypeMap;

// Function type helpers
interface GeneratorFunction {
  new(...args: any[]): Generator;
  (...args: any[]): Generator;
}

interface AsyncFunction {
  new(...args: any[]): Promise<any>;
  (...args: any[]): Promise<any>;
}

interface AsyncGeneratorFunction {
  new(...args: any[]): AsyncGenerator;
  (...args: any[]): AsyncGenerator;
}

// Node.js type helpers (will be undefined in browser)
declare global {
  namespace NodeJS {
    interface ReadableStream {}
    interface WritableStream {}
    interface EventEmitter {}
  }
  interface Buffer {}
}

declare function coerceType<T extends TypeName>(value: unknown, targetType: T): TypeMap[T] | null;

export { coerceType, toArray, toBigInt, toBoolean, toBuffer, toDate, toError, toFunction, toMap, toNumber, toObject, toPromise, toRegExp, toSet, toString, toSymbol, toTypedArray };