// Copyright (c) 2018, Compiler Explorer Authors
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import fs from 'node:fs';

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

import {ClientState} from '../lib/clientstate.js';
import {ClientStateGoldenifier, ClientStateNormalizer} from '../lib/clientstate-normalizer.js';

describe('Normalizing clientstate', () => {
    it('Should translate 2 compilers GL layout to clientstate', () => {
        const normalizer = new ClientStateNormalizer();

        const data = JSON.parse(fs.readFileSync('test/state/twocompilers.json', {encoding: 'utf8'}));
        normalizer.fromGoldenLayout(data);

        const resultdata = JSON.parse(fs.readFileSync('test/state/twocompilers.normalized.json', {encoding: 'utf8'}));

        // note: this trick is to get rid of undefined parameters
        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        expect(normalized).toEqual(resultdata);
    });

    it('Should recognize everything and kitchensink as well', () => {
        const normalizer = new ClientStateNormalizer();

        const data = JSON.parse(fs.readFileSync('test/state/andthekitchensink.json', {encoding: 'utf8'}));

        normalizer.fromGoldenLayout(data);

        const resultdata = JSON.parse(
            fs.readFileSync('test/state/andthekitchensink.normalized.json', {encoding: 'utf8'}),
        );

        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        expect(normalized).toEqual(resultdata);
    });

    it('Should support conformanceview', () => {
        const normalizer = new ClientStateNormalizer();

        const data = JSON.parse(fs.readFileSync('test/state/conformanceview.json', {encoding: 'utf8'}));

        normalizer.fromGoldenLayout(data);

        const resultdata = JSON.parse(
            fs.readFileSync('test/state/conformanceview.normalized.json', {encoding: 'utf8'}),
        );

        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        expect(normalized).toEqual(resultdata);
    });

    it('Should support executors', () => {
        const normalizer = new ClientStateNormalizer();

        const data = JSON.parse(fs.readFileSync('test/state/executor.json', {encoding: 'utf8'}));

        normalizer.fromGoldenLayout(data);

        const resultdata = JSON.parse(fs.readFileSync('test/state/executor.normalized.json', {encoding: 'utf8'}));

        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        expect(normalized).toEqual(resultdata);
    });

    it('Should support newer features', () => {
        const normalizer = new ClientStateNormalizer();

        const data = JSON.parse(fs.readFileSync('test/state/executorwrap.json', {encoding: 'utf8'}));

        normalizer.fromGoldenLayout(data);

        const resultdata = JSON.parse(fs.readFileSync('test/state/executorwrap.normalized.json', {encoding: 'utf8'}));

        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        expect(normalized).toEqual(resultdata);
    });

    it('Allow output without editor id', () => {
        const normalizer = new ClientStateNormalizer();
        const data = JSON.parse(fs.readFileSync('test/state/output-editor-id.json', {encoding: 'utf8'}));
        normalizer.fromGoldenLayout(data);

        const resultdata = JSON.parse(
            fs.readFileSync('test/state/output-editor-id.normalized.json', {encoding: 'utf8'}),
        );

        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        expect(normalized).toEqual(resultdata);
    });
});

describe('ClientState parsing', () => {
    it('Should work without executors', () => {
        const state = new ClientState({
            sessions: [
                {id: 1, language: 'c++', source: 'int main() {}', compilers: [{id: 'g91', options: '-O3 -std=c++2a'}]},
            ],
        });

        expect(state.sessions[0].compilers.length).toEqual(1);
        expect(state.sessions[0].executors.length).toEqual(0);
    });

    it('Should work with executor', () => {
        const state = new ClientState({
            sessions: [
                {
                    id: 1,
                    language: 'c++',
                    source: 'int main() {}',
                    compilers: [],
                    executors: [
                        {
                            compiler: {id: 'g91', options: '-O3 -std=c++2a'},
                        },
                    ],
                },
            ],
        });

        expect(state.sessions[0].compilers.length).toEqual(0);
        expect(state.sessions[0].executors.length).toEqual(1);
    });

    it('Should not contain id-less compilers', () => {
        const jsonStr = fs.readFileSync('test/state/bug-2231.json', {encoding: 'utf8'});
        const state = new ClientState(JSON.parse(jsonStr));
        expect(state.sessions[0].compilers.length).toEqual(1);
    });
});

describe('Trees', () => {
    it('ClientState to GL', () => {
        const jsonStr = fs.readFileSync('test/state/tree.json', {encoding: 'utf8'});
        const state = new ClientState(JSON.parse(jsonStr));
        expect(state.trees.length).toEqual(1);

        const gl = new ClientStateGoldenifier();
        gl.fromClientState(state);

        const golden = JSON.parse(JSON.stringify(gl.golden));

        const resultdata = JSON.parse(fs.readFileSync('test/state/tree.goldenified.json', {encoding: 'utf8'}));
        expect(golden).toEqual(resultdata);
    });

    it('GL to ClientState', () => {
        const jsonStr = fs.readFileSync('test/state/tree-gl.json', {encoding: 'utf8'});
        const gl = JSON.parse(jsonStr);

        const normalizer = new ClientStateNormalizer();
        normalizer.fromGoldenLayout(gl);

        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        const resultdata = JSON.parse(fs.readFileSync('test/state/tree.normalized.json', {encoding: 'utf8'}));

        expect(normalized).toEqual(resultdata);
    });

    it('GL to ClientState with correct output pane', () => {
        const jsonStr = fs.readFileSync('test/state/tree-gl-outputpane.json', {encoding: 'utf8'});
        const gl = JSON.parse(jsonStr);

        const normalizer = new ClientStateNormalizer();
        normalizer.fromGoldenLayout(gl);

        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        const resultdata = JSON.parse(
            fs.readFileSync('test/state/tree-gl-outputpane.normalized.json', {encoding: 'utf8'}),
        );

        expect(normalized).toEqual(resultdata);
    });

    it('ClientState to Mobile GL', () => {
        const jsonStr = fs.readFileSync('test/state/tree-mobile.json', {encoding: 'utf8'});
        const state = new ClientState(JSON.parse(jsonStr));
        expect(state.trees.length).toEqual(1);

        const gl = new ClientStateGoldenifier();
        const slides = gl.generatePresentationModeMobileViewerSlides(state);

        const golden = JSON.parse(JSON.stringify(slides));
        //fs.writeFileSync('test/state/tree-mobile.goldenified.json', JSON.stringify(golden));

        const resultdata = JSON.parse(fs.readFileSync('test/state/tree-mobile.goldenified.json', {encoding: 'utf8'}));
        expect(golden).toEqual(resultdata);
    });
});

describe('bug-6380', () => {
    it('Should goldenify properly', () => {
        const jsonStr = fs.readFileSync('test/state/bug-6380.json', {encoding: 'utf8'});
        const state = new ClientState(JSON.parse(jsonStr));

        const gl = new ClientStateGoldenifier();
        gl.fromClientState(state);

        const golden = JSON.parse(JSON.stringify(gl.golden));

        const normalizer = new ClientStateNormalizer();
        normalizer.fromGoldenLayout(golden);
    });
});

describe('overrides-and-runtimeTools', () => {
    it('Should normalize overrides and runtimetools', () => {
        const jsonGlStr = fs.readFileSync('test/state/libsegfault.json', {encoding: 'utf8'});
        const golden = JSON.parse(jsonGlStr);

        const normalizer = new ClientStateNormalizer();
        normalizer.fromGoldenLayout(golden);

        const normalized = JSON.parse(JSON.stringify(normalizer.normalized));

        const resultdata = JSON.parse(fs.readFileSync('test/state/libsegfault.normalized.json', {encoding: 'utf8'}));
        expect(normalized).toEqual(resultdata);
    });
});
