// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:observatory/service_io.dart';
import 'package:observatory/debugger.dart';
import 'package:unittest/unittest.dart';
import 'service_test_common.dart';
import 'test_helper.dart';
import 'dart:async';
import 'dart:developer';

const int LINE_A = 21;
const int LINE_B = 110;
const int LINE_C = 11;

void testFunction() {
  int i = 0;
  while (i == 0) {
    debugger();
    print('loop'); // Line A.
    print('loop');
  }
}

class TestDebugger extends Debugger {
  TestDebugger(this.isolate, this.stack);

  VM get vm => isolate.vm;
  Isolate isolate;
  ServiceMap stack;
  int currentFrame = 0;
}

void debugger_location_dummy_function() {}

class DebuggerLocationTestFoo {
  DebuggerLocationTestFoo(this.field);
  DebuggerLocationTestFoo.named();

  void method() {}
  void madness() {}

  int field;
}

class DebuggerLocationTestBar {}

Future<Debugger> initDebugger(Isolate isolate) {
  return isolate.getStack().then((stack) {
    return new TestDebugger(isolate, stack);
  });
}

var tests = <IsolateTest>[
  hasStoppedAtBreakpoint,

// Load the isolate's libraries
  (Isolate isolate) async {
    for (var lib in isolate.libraries) {
      await lib.load();
    }
  },

// Parse method
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var loc = await DebuggerLocation.parse(
        debugger, 'DebuggerLocationTestFoo.method');
    expect(loc.valid, isTrue);
    expect(loc.toString(), equals('DebuggerLocationTestFoo.method'));
  },

// Parse method
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var loc = await DebuggerLocation.parse(
        debugger, 'DebuggerLocationTestFoo.field=');
    expect(loc.valid, isTrue);
    expect(loc.toString(), equals('DebuggerLocationTestFoo.field='));
  },

// Parse bad method
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var loc = await DebuggerLocation.parse(
        debugger, 'DebuggerLocationTestFoo.missing');
    expect(loc.valid, isFalse);
    expect(
        loc.toString(),
        equals('invalid source location '
            '(Function \'DebuggerLocationTestFoo.missing\' not found)'));
  },

// Complete function + script
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions = await DebuggerLocation.complete(debugger, 'debugger_loc');
    expect(
        completions.toString(),
        equals('[debugger_location_dummy_function,'
            ' debugger_location.dart:,'
            ' debugger_location_second_test.dart:]'));
  },

// Complete class
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions =
        await DebuggerLocation.complete(debugger, 'DebuggerLocationTe');
    expect(
        completions.toString(),
        equals('[DebuggerLocationTestBar,'
            ' DebuggerLocationTestFoo]'));
  },

// No completions: unqualified name
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions =
        await DebuggerLocation.complete(debugger, 'debugger_locXYZZY');
    expect(completions.toString(), equals('[]'));
  },

// Complete method
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions =
        await DebuggerLocation.complete(debugger, 'DebuggerLocationTestFoo.m');
    expect(
        completions.toString(),
        equals('[DebuggerLocationTestFoo.madness,'
            ' DebuggerLocationTestFoo.method]'));
  },

// No completions: qualified name
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions =
        await DebuggerLocation.complete(debugger, 'DebuggerLocationTestFoo.q');
    expect(completions.toString(), equals('[]'));
  },

// Complete script
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions = await DebuggerLocation.complete(
        debugger, 'debugger_location_second_te');
    expect(completions.toString(),
        equals('[debugger_location_second_test.dart:]'));
  },

// Complete script:line
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions = await DebuggerLocation.complete(
        debugger, 'debugger_location_second_test.dart:11');
    expect(
        completions.toString(),
        equals('[debugger_location_second_test.dart:${LINE_B + 0} ,'
            ' debugger_location_second_test.dart:${LINE_B + 0}:,'
            ' debugger_location_second_test.dart:${LINE_B + 1} ,'
            ' debugger_location_second_test.dart:${LINE_B + 1}:,'
            ' debugger_location_second_test.dart:${LINE_B + 2} ,'
            ' debugger_location_second_test.dart:${LINE_B + 2}:,'
            ' debugger_location_second_test.dart:${LINE_B + 3} ,'
            ' debugger_location_second_test.dart:${LINE_B + 3}:,'
            ' debugger_location_second_test.dart:${LINE_B + 4} ,'
            ' debugger_location_second_test.dart:${LINE_B + 4}:,'
            ' debugger_location_second_test.dart:${LINE_B + 5} ,'
            ' debugger_location_second_test.dart:${LINE_B + 5}:,'
            ' debugger_location_second_test.dart:${LINE_B + 8} ,'
            ' debugger_location_second_test.dart:${LINE_B + 8}:,'
            ' debugger_location_second_test.dart:${LINE_B + 9} ,'
            ' debugger_location_second_test.dart:${LINE_B + 9}:]'));
  },

// Complete script:line:col
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions = await DebuggerLocation.complete(
        debugger, 'debugger_location_second_test.dart:$LINE_C:2');
    expect(
        completions.toString(),
        equals('[debugger_location_second_test.dart:$LINE_C:2 ,'
            ' debugger_location_second_test.dart:$LINE_C:20 ,'
            ' debugger_location_second_test.dart:$LINE_C:21 ,'
            ' debugger_location_second_test.dart:$LINE_C:22 ,'
            ' debugger_location_second_test.dart:$LINE_C:23 ,'
            ' debugger_location_second_test.dart:$LINE_C:24 ]'));
  },

// Complete without the script name.
  (Isolate isolate) async {
    var debugger = await initDebugger(isolate);
    var completions = await DebuggerLocation.complete(debugger, '$LINE_C:2');
    expect(
        completions.toString(),
        equals('[debugger_location_second_test.dart:$LINE_C:2 ,'
            ' debugger_location_second_test.dart:$LINE_C:20 ,'
            ' debugger_location_second_test.dart:$LINE_C:21 ,'
            ' debugger_location_second_test.dart:$LINE_C:22 ,'
            ' debugger_location_second_test.dart:$LINE_C:23 ,'
            ' debugger_location_second_test.dart:$LINE_C:24 ]'));
  },
];

main(args) => runIsolateTests(args, tests, testeeConcurrent: testFunction);