// Copyright 2022 Yoshiya Hinosawa. All rights reserved. MIT license.
// Copyright 2018-2021 Sindre Sorhus. All rights reserved. MIT license.
// deno-lint-ignore-file no-explicit-any

type AnyFunction = (...args: any[]) => any;

export interface CallSite {
  /** Returns the value of `this`. */
  getThis(): unknown | undefined;
  /** Returns the type of `this` as a string. This is the name of the function stored in the constructor field of `this`, if available, otherwise the object's `[[Class]]` internal property. */
  getTypeName(): string | null;
  /** Returns the current function. */
  getFunction(): AnyFunction | undefined;
  /** Returns the name of the current function, typically its `name` property. If a name property is not available an attempt will be made to try to infer a name from the function's context. */
  getFunctionName(): string | null;
  /** Returns the name of the property of `this` or one of its prototypes that holds the current function. */
  getMethodName(): string | undefined;
  /** Returns the name of the script if this function was defined in a script. */
  getFileName(): string | null;
  /** Returns the current line number if this function was defined in a script. */
  getLineNumber(): number | null;
  /** Returns the current column number if this function was defined in a script. */
  getColumnNumber(): number | null;
  /** Returns a string representing the location where `eval` was called if this function was created using a call to `eval`. */
  getEvalOrigin(): string | undefined;
  /** Returns `true` if this is a top-level invocation, that is, if it's a global object. */
  isToplevel(): boolean;
  /** Returns `true` if this call takes place in code defined by a call to `eval`. */
  isEval(): boolean;
  /** Returns `true` if this call is in native V8 code. */
  isNative(): boolean;
  /** Returns `true` if this is a constructor call. */
  isConstructor(): boolean;
}

/** Returns the list of CallSite objects from the V8 stack trace API.
 *
 * ```ts
 * import callsites from "";
 * function foo() {
 *   console.log(callsites()[0].getFileName());
 *   // => file:///path/to/file.js
 * }
 * foo();
 * ```
 */
export default function callsites(): CallSite[] {
  const _prepareStackTrace = (Error as any).prepareStackTrace;
  (Error as any).prepareStackTrace = (_: unknown, stack: CallSite) => stack;
  const stack = (new Error() as any).stack.slice(1);
  (Error as any).prepareStackTrace = _prepareStackTrace;
  return stack;
}