// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import {assert} from 'chai';

import {
  findModuleConfiguration,
  resolveSourcePathToURL,
} from '../src/ModuleConfiguration.js';

describe('findModuleConfiguration', () => {
  const CONFIGA = {name: 'projectA.wasm', pathSubstitutions: []};
  const CONFIGB = {name: 'projectB.wasm', pathSubstitutions: []};
  const DEFAULT = {pathSubstitutions: [{from: '/foo', to: '/bar'}]};
  const URLA = new URL('http://localhost/projectA.wasm');
  const URLB = new URL('file:/C:/Users/Admin/Projects/projectB.wasm');
  const URLC = new URL('https://web.dev/projectC.wasm');

  it('correctly yields named configuration', () => {
    assert.strictEqual(findModuleConfiguration([CONFIGA], URLA), CONFIGA);
    assert.strictEqual(
        findModuleConfiguration([CONFIGA, CONFIGB], URLA),
        CONFIGA,
    );
    assert.strictEqual(
        findModuleConfiguration([CONFIGB, CONFIGA], URLA),
        CONFIGA,
    );
    assert.strictEqual(
        findModuleConfiguration([DEFAULT, CONFIGB, CONFIGA], URLB),
        CONFIGB,
    );
    assert.strictEqual(
        findModuleConfiguration([CONFIGB, CONFIGA, DEFAULT], URLB),
        CONFIGB,
    );
  });

  it('correctly yields default configuration', () => {
    assert.deepEqual(findModuleConfiguration([CONFIGA], URLB), {
      pathSubstitutions: [],
    });
    assert.deepEqual(findModuleConfiguration([CONFIGA, CONFIGB], URLC), {
      pathSubstitutions: [],
    });
    assert.deepEqual(findModuleConfiguration([CONFIGB, CONFIGA], URLC), {
      pathSubstitutions: [],
    });
    assert.strictEqual(
        findModuleConfiguration([DEFAULT, CONFIGB, CONFIGA], URLC),
        DEFAULT,
    );
    assert.strictEqual(
        findModuleConfiguration([CONFIGB, CONFIGA, DEFAULT], URLC),
        DEFAULT,
    );
  });

  it('correctly matches basename *-patterns', () => {
    const STAR_WASM = {name: '*.wasm', pathSubstitutions: []};
    const PROJECTA_STAR = {name: 'projectA.*', pathSubstitutions: []};
    const PROJECT_STAR_WASM = {name: 'project*.wasm', pathSubstitutions: []};
    assert.strictEqual(
        findModuleConfiguration([PROJECTA_STAR], URLA),
        PROJECTA_STAR,
    );
    assert.strictEqual(
        findModuleConfiguration([STAR_WASM, PROJECTA_STAR], URLA),
        STAR_WASM,
    );
    assert.strictEqual(
        findModuleConfiguration(
            [STAR_WASM, PROJECTA_STAR],
            new URL('http://example.com/projectA.foo'),
            ),
        PROJECTA_STAR,
    );
    assert.strictEqual(
        findModuleConfiguration([PROJECT_STAR_WASM], URLA),
        PROJECT_STAR_WASM,
    );
    assert.strictEqual(
        findModuleConfiguration([PROJECT_STAR_WASM], URLB),
        PROJECT_STAR_WASM,
    );
  });

  it('corectly matches **-patterns', () => {
    const PROJECT = {
      name: 'http://localhost/**/*.wasm',
      pathSubstitutions: [],
    };
    assert.strictEqual(
        findModuleConfiguration([PROJECT], new URL('http://localhost/file.wasm')),
        PROJECT,
    );
  });
});

describe('resolveSourcePathToURL', () => {
  it('correctly resolves absolute paths', () => {
    const BASE_URL = new URL('http://localhost/file.wasm');
    assert.strictEqual(
        resolveSourcePathToURL([], '/', BASE_URL).href,
        'file:///',
    );
    assert.strictEqual(
        resolveSourcePathToURL([], '/usr/local', BASE_URL).href,
        'file:///usr/local',
    );
    assert.strictEqual(
        resolveSourcePathToURL([], '/Users/Administrator', BASE_URL).href,
        'file:///Users/Administrator',
    );
    assert.strictEqual(
        resolveSourcePathToURL([], 'A:/', BASE_URL).href,
        'file:///A:/',
    );
    assert.strictEqual(
        resolveSourcePathToURL([], 'c:\\', BASE_URL).href,
        'file:///c:/',
    );
    assert.strictEqual(
        resolveSourcePathToURL([], 'c:\\Users\\Clippy\\Source', BASE_URL).href,
        'file:///c:/Users/Clippy/Source',
    );
    assert.strictEqual(
        resolveSourcePathToURL([], '\\\\network\\Server\\Source', BASE_URL).href,
        'file://network/Server/Source',
    );
  });

  it('correctly resolves relative paths', () => {
    assert.strictEqual(
        resolveSourcePathToURL(
            [],
            'stdint.h',
            new URL('http://localhost/file.wasm'),
            )
            .href,
        'http://localhost/stdint.h',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [],
            'emscripten/include/iostream',
            new URL('http://localhost/dist/module.wasm'),
            )
            .href,
        'http://localhost/dist/emscripten/include/iostream',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [],
            './src/main.cc',
            new URL('https://www.example.com/fast.wasm'),
            )
            .href,
        'https://www.example.com/src/main.cc',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [],
            '.\\Mein Projekt\\Datei.cpp',
            new URL('https://www.example.com/fast.wasm'),
            )
            .href,
        'https://www.example.com/Mein%20Projekt/Datei.cpp',
    );
  });

  it('correctly applies source path substitutions', () => {
    const BASE_URL = new URL('http://localhost/file.wasm');
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '/usr/src', to: '/mnt/src'}],
            '/usr/include/stdio.h',
            BASE_URL,
            )
            .href,
        'file:///usr/include/stdio.h',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '/usr/src', to: '/mnt/src'}],
            '/usr/src/include/stdio.h',
            BASE_URL,
            )
            .href,
        'file:///mnt/src/include/stdio.h',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [
              {from: '/usr/src', to: '/mnt/src'},
              {from: '/mnt/src', to: '/foo'},
            ],
            '/usr/src/include/stdio.h',
            BASE_URL,
            )
            .href,
        'file:///mnt/src/include/stdio.h',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [
              {from: '/usr/src/include', to: '/mnt/include'},
              {from: '/usr/src', to: '/mnt/src'},
            ],
            '/usr/src/include/stdio.h',
            BASE_URL,
            )
            .href,
        'file:///mnt/include/stdio.h',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: '/srv/central/src'}],
            './include/string',
            BASE_URL,
            )
            .href,
        'file:///srv/central/src/include/string',
    );
  });

  it('correctly resolves the sidecar Wasm module path', () => {
    // We use resolveSourcePathToURL() with an empty source
    // map to locate the debugging sidecar Wasm module.
    assert.strictEqual(
        resolveSourcePathToURL(
            [],
            'file.wasm.debug.wasm',
            new URL('http://localhost:8000/wasm/file.wasm'),
            )
            .href,
        'http://localhost:8000/wasm/file.wasm.debug.wasm',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [],
            '/usr/local/file.wasm.debug.wasm',
            new URL('http://localhost:8000/wasm/file.wasm'),
            )
            .href,
        'file:///usr/local/file.wasm.debug.wasm',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [],
            'f:\\netdrive\\file.wasm.debug.wasm',
            new URL('http://localhost:8000/wasm/file.wasm'),
            )
            .href,
        'file:///f:/netdrive/file.wasm.debug.wasm',
    );
  });

  it('correctly deals with dot patterns', () => {
    // Test that we match LLDB's behavior as implemented for `settings set target.source-map`:
    // http://cs/github/llvm/llvm-project/lldb/source/Target/PathMappingList.cpp?l=157-185
    const BASE_URL = new URL('http://web.dev/file.wasm');
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: '/foo/bar'}],
            'include/header.h',
            BASE_URL,
            )
            .href,
        'file:///foo/bar/include/header.h',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: 'c:\\foo\\bar'}],
            'include/header.h',
            BASE_URL,
            )
            .href,
        'file:///c:/foo/bar/include/header.h',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: '/foo'}],
            '/mnt/main.c',
            BASE_URL,
            )
            .href,
        'file:///mnt/main.c',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: 'c:\\foo'}],
            '/mnt/main.c',
            BASE_URL,
            )
            .href,
        'file:///mnt/main.c',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: '/foo'}],
            'c:\\mnt\\main.c',
            BASE_URL,
            )
            .href,
        'file:///c:/mnt/main.c',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: 'c:\\foo'}],
            'c:\\mnt\\main.c',
            BASE_URL,
            )
            .href,
        'file:///c:/mnt/main.c',
    );
  });

  it('correctly deals with dot patterns when the source path is a URL', () => {
    const BASE_URL = new URL('http://web.dev/file.wasm');
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: '/bar'}],
            'file:///main.cpp',
            BASE_URL,
            )
            .href,
        'file:///main.cpp',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: '/bar'}],
            'http://localhost/main.cpp',
            BASE_URL,
            )
            .href,
        'http://localhost/main.cpp',
    );
    assert.strictEqual(
        resolveSourcePathToURL(
            [{from: '.', to: '/bar'}],
            'https://localhost/main.cpp',
            BASE_URL,
            )
            .href,
        'https://localhost/main.cpp',
    );
  });
});