/*---------------------------------------------------------
 * Copyright 2021 The Go Authors. All rights reserved.
 * Licensed under the MIT License. See LICENSE in the project root for license information.
 *--------------------------------------------------------*/

import assert from 'assert';
import { AttachItem, compareByProcessId, mergeExecutableAttachItem, parseGoVersionOutput } from '../../src/pickProcess';
import { parseLsofProcesses } from '../../src/utils/lsofProcessParser';
import { parsePsProcesses } from '../../src/utils/psProcessParser';
import { parseWindowsProcessInfo } from '../../src/utils/windowsProcessParser';

suite('Pick Process Tests', () => {
	test('Parse go version output', () => {
		const tt = [
			{
				input: '/path/to/process/a: go1.16.2\n/path/to/process/b: go1.15.4\n/path/to/process/a b c: go1.8.0\n/path/to/process/d: go1.14',
				want: ['/path/to/process/a', '/path/to/process/b', '/path/to/process/a b c', '/path/to/process/d']
			},
			{
				input: 'C:\\path\\to\\process\\a: go1.16.2\nC:\\path\\to\\process\\b: go1.15.4\nC:\\path\\to\\process\\a b c: go1.8.0\nC:\\path\\to\\process\\d: go1.14',
				want: [
					'C:\\path\\to\\process\\a',
					'C:\\path\\to\\process\\b',
					'C:\\path\\to\\process\\a b c',
					'C:\\path\\to\\process\\d'
				]
			},
			{
				input: 'go version go1.15.7 darwin/amd64',
				want: []
			},
			{
				input: '/path/to/process/a: go11a62b12\n/path/to/process/b: go1/15/4\n/path/to/process/a b c: gob.v.b\n/path/to/process/d: gp1.14',
				want: []
			},
			{
				// Match go versions with custom suffixes like "X:nodwarf5" or "rc1".
				input: '/path/to/process/a: go1.26.5-X:nodwarf5\n/path/to/process/b: go1.22rc1',
				want: ['/path/to/process/a', '/path/to/process/b']
			}
		];
		for (const tc of tt) {
			const got = parseGoVersionOutput(tc.input);
			assert.strictEqual(got.length, tc.want.length);
			for (let i = 0; i < got.length; i++) {
				assert.strictEqual(got[i], tc.want[i]);
			}
		}
	});
	test('Parse lsof output', () => {
		const tt = [
			{
				input: `p1010
ftxt
n/Applications/Visual Studio Code.app/Contents/Frameworks/Code Helper (Renderer).app/Contents/MacOS/Code Helper (Renderer)
ftxt
n/Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Electron Framework
ftxt
n/Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Libraries/libffmpeg.dylib
p2020
ftxt
n/User/name/go/bin/go`,
				want: [
					{
						id: '1010',
						executable:
							'/Applications/Visual Studio Code.app/Contents/Frameworks/Code Helper (Renderer).app/Contents/MacOS/Code Helper (Renderer)'
					},
					{
						id: '2020',
						executable: '/User/name/go/bin/go'
					}
				]
			}
		];
		for (const tc of tt) {
			const got = parseLsofProcesses(tc.input);
			got.sort(compareByProcessId);
			assert.strictEqual(got.length, tc.want.length);
			for (let i = 0; i < got.length; i++) {
				assert.strictEqual(got[i].id, tc.want[i].id);
				assert.strictEqual(got[i].executable, tc.want[i].executable);
			}
		}
	});

	test('Merge processes', () => {
		const tt: {
			processes: AttachItem[];
			execInfo: AttachItem[];
			want: AttachItem[];
		}[] = [
			{
				processes: [
					{
						id: '100',
						processName: 'a',
						label: 'a'
					},
					{
						id: '50',
						processName: 'b',
						label: 'b'
					},
					{
						id: '130',
						processName: 'b',
						label: 'b'
					},
					{
						id: '300',
						processName: 'c',
						label: 'c'
					}
				],
				execInfo: [
					{
						id: '50',
						label: '',
						executable: '/path/to/b'
					},
					{
						id: '300',
						label: '',
						executable: '/path/to/c'
					}
				],

				want: [
					{
						id: '50',
						processName: 'b',
						label: 'b',
						executable: '/path/to/b'
					},
					{
						id: '100',
						processName: 'a',
						label: 'a'
					},
					{
						id: '130',
						processName: 'b',
						label: 'b'
					},
					{
						id: '300',
						processName: 'c',
						label: 'c',
						executable: '/path/to/c'
					}
				]
			}
		];
		for (const tc of tt) {
			mergeExecutableAttachItem(tc.processes, tc.execInfo);
			tc.processes.sort(compareByProcessId);
			assert.strictEqual(tc.processes.length, tc.want.length);
			for (let i = 0; i < tc.processes.length; i++) {
				assert.strictEqual(tc.processes[i].id, tc.want[i].id);
				assert.strictEqual(tc.processes[i].label, tc.want[i].label);
				assert.strictEqual(tc.processes[i].processName, tc.want[i].processName);
				assert.strictEqual(tc.processes[i].executable, tc.want[i].executable);
			}
		}
	});

	test('Parse ps output (Linux/macOS)', () => {
		const secondColumnCharacters = 50;
		const commColumnTitle = ''.padStart(secondColumnCharacters, 'a');
		const commVal = 'my-go-app'.padEnd(secondColumnCharacters - 1, ' ');
		const input = `PID ${commColumnTitle} ARGS\n 1234 ${commVal} /usr/local/bin/my-go-app --flag`;
		const got = parsePsProcesses(input);
		assert.strictEqual(got.length, 1);
		assert.strictEqual(got[0].id, '1234');
		assert.strictEqual(got[0].processName, 'my-go-app');
		assert.strictEqual(got[0].commandLine, '/usr/local/bin/my-go-app --flag');
	});

	test('Parse windows process info', () => {
		const tt = [
			{
				input: {
					processId: 1234,
					parentProcessId: 100,
					creationDate: 1700000000,
					commandLine: '"C:\\Program Files\\Go\\bin\\go.exe" run main.go'
				},
				want: {
					id: '1234',
					label: 'go.exe',
					processName: 'go.exe',
					description: '1234',
					detail: '"C:\\Program Files\\Go\\bin\\go.exe" run main.go',
					executable: 'C:\\Program Files\\Go\\bin\\go.exe'
				}
			},
			{
				input: {
					processId: 5678,
					parentProcessId: 100,
					creationDate: 1700000000,
					commandLine: 'C:\\tools\\myapp.exe --port 8080'
				},
				want: {
					id: '5678',
					label: 'myapp.exe',
					processName: 'myapp.exe',
					description: '5678',
					detail: 'C:\\tools\\myapp.exe --port 8080',
					executable: 'C:\\tools\\myapp.exe'
				}
			},
			{
				input: {
					processId: 9012,
					parentProcessId: 100,
					creationDate: 1700000000,
					commandLine: '\\??\\C:\\Windows\\system32\\cmd.exe'
				},
				want: {
					id: '9012',
					label: 'cmd.exe',
					processName: 'cmd.exe',
					description: '9012',
					detail: '\\??\\C:\\Windows\\system32\\cmd.exe',
					executable: '\\??\\C:\\Windows\\system32\\cmd.exe'
				}
			},
			{
				input: {
					processId: 44,
					parentProcessId: 0,
					creationDate: 1700000000,
					commandLine: ''
				},
				want: {
					id: '44',
					label: 'Process 44',
					processName: 'Process 44',
					description: '44',
					detail: '',
					executable: ''
				}
			}
		];

		for (const tc of tt) {
			const got = parseWindowsProcessInfo(tc.input);
			assert.strictEqual(got.id, tc.want.id);
			assert.strictEqual(got.label, tc.want.label);
			assert.strictEqual(got.processName, tc.want.processName);
			assert.strictEqual(got.description, tc.want.description);
			assert.strictEqual(got.detail, tc.want.detail);
			assert.strictEqual(got.executable, tc.want.executable);
		}
	});
});