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import path from 'node:path';

import {describe, expect, it} from 'vitest';

import {HookCompiler} from '../../lib/compilers/index.js';
import {makeCompilationEnvironment} from '../utils.js';

describe('Hook compiler', () => {
    it('should return correct key', () => {
        expect(HookCompiler.key).toEqual('hook');
    });

    const info = {
        exe: '/opt/hook/bin/hook',
        remote: true,
        lang: 'hook',
    };

    if (process.platform === 'win32') {
        info.exe = 'C:/opt/hook/bin/hook';
    }

    const languages = {hook: {id: 'hook'}};
    const hook = new HookCompiler(info as any, makeCompilationEnvironment({languages}));

    it('should return correct options for filter', () => {
        expect(hook.optionsForFilter(undefined as unknown as any)).toEqual(['--dump']);
    });

    it('should return correct output filename', () => {
        const dirPath = '/tmp';
        expect(hook.getOutputFilename(dirPath)).toEqual(path.normalize('/tmp/example.out'));
    });

    it('should correctly add hook_home to the env', () => {
        if (process.platform === 'win32') {
            expect(hook.addHookHome(undefined)).toEqual({HOOK_HOME: 'C:\\opt\\hook'});
            expect(hook.addHookHome({moo: 'moo'})).toEqual({moo: 'moo', HOOK_HOME: 'C:\\opt\\hook'});
        } else {
            expect(hook.addHookHome(undefined)).toEqual({HOOK_HOME: '/opt/hook'});
            expect(hook.addHookHome({moo: 'moo'})).toEqual({moo: 'moo', HOOK_HOME: '/opt/hook'});
        }
    });

    it('should process and return correct bytecode result', async () => {
        const asm =
            '; main in /app/example.hk at 0x56554a556550\n' +
            '; 0 parameter(s), 0 non-local(s), 0 constant(s), 0 function(s)\n' +
            '  1         0 Int                       2\n' +
            '            3 Int                       2\n' +
            '            6 Multiply\n' +
            '  2         7 Load                      2\n' +
            '            9 Return\n' +
            '           10 ReturnNil\n' +
            '; 6 instruction(s)\n';
        const expected = {
            asm: [
                {
                    labels: [],
                    source: {
                        file: null,
                        line: null,
                    },
                    text: '; main in /app/example.hk at 0x56554a556550',
                },
                {
                    labels: [],
                    source: {
                        file: null,
                        line: null,
                    },
                    text: '; 0 parameter(s), 0 non-local(s), 0 constant(s), 0 function(s)',
                },
                {
                    labels: [],
                    source: {
                        file: null,
                        line: 1,
                    },
                    text: '  1         0 Int                       2',
                },
                {
                    labels: [],
                    source: {
                        file: null,
                        line: 1,
                    },
                    text: '            3 Int                       2',
                },
                {
                    labels: [],
                    source: {
                        file: null,
                        line: 1,
                    },
                    text: '            6 Multiply',
                },
                {
                    labels: [],
                    source: {
                        file: null,
                        line: 2,
                    },
                    text: '  2         7 Load                      2',
                },
                {
                    labels: [],
                    source: {
                        file: null,
                        line: 2,
                    },
                    text: '            9 Return',
                },
                {
                    labels: [],
                    source: {
                        file: null,
                        line: 2,
                    },
                    text: '           10 ReturnNil',
                },
                {
                    labels: [],
                    source: {
                        file: null,
                        line: null,
                    },
                    text: '; 6 instruction(s)',
                },
            ],
            filteredCount: 0,
            labelDefinitions: {},
        };
        const filters = {trim: false};
        const result = await hook.processAsm({asm: asm}, filters, []);
        delete result.parsingTime;
        expect(result).toEqual(expected);
    });
});
