import { assert } from 'chai';
import * as mkdirp from 'mkdirp';
import * as rimraf from 'rimraf';
import * as fs from "fs";

import { ObfuscatedCodeWriter } from '../../../../src/cli/utils/ObfuscatedCodeWriter';

describe('ObfuscatedCodeWriter', () => {
    const tmpDirectoryPath: string = 'test/tmp';

    describe('getOutputCodePath', () => {
        before(() => {
            mkdirp.sync(`${tmpDirectoryPath}/input/`);
            fs.writeFileSync(
                `${tmpDirectoryPath}/input/test-input.js`,
                'var foo = 1;'
            );
        });

        describe('Variant #1: raw input path is a file path, raw output path is a file path', () => {
            const inputPath: string = `${tmpDirectoryPath}/input/test-input.js`;
            const rawInputPath: string = `${tmpDirectoryPath}/input/test-input.js`;
            const rawOutputPath: string = `${tmpDirectoryPath}/output/test-output.js`;
            const expectedOutputCodePath: string = `${tmpDirectoryPath}/output/test-output.js`;

            let outputCodePath: string;

            before(() => {
                const obfuscatedCodeWriter: ObfuscatedCodeWriter = new ObfuscatedCodeWriter(
                    rawInputPath,
                    {
                        output: rawOutputPath
                    }
                );
                outputCodePath = obfuscatedCodeWriter.getOutputCodePath(inputPath);
            });

            it('should return output path that equals to passed output file path', () => {
                assert.equal(outputCodePath, expectedOutputCodePath);
            });
        });

        describe('Variant #2: raw input path is a file path, raw output path is a directory path', () => {
            const inputPath: string = `${tmpDirectoryPath}/input/test-input.js`;
            const rawInputPath: string = `${tmpDirectoryPath}/input/test-input.js`;
            const rawOutputPath: string = `${tmpDirectoryPath}/output`;
            const expectedOutputCodePath: string = `${tmpDirectoryPath}/output/test-input.js`;

            let outputCodePath: string;

            before(() => {
                const obfuscatedCodeWriter: ObfuscatedCodeWriter = new ObfuscatedCodeWriter(
                    rawInputPath,
                    {
                        output: rawOutputPath
                    }
                );
                outputCodePath = obfuscatedCodeWriter.getOutputCodePath(inputPath);
            });

            it('should return output path that equals to passed output directory with file name from actual file path', () => {
                assert.equal(outputCodePath, expectedOutputCodePath);
            });
        });

        describe('Variant #3: raw input path is a directory path, raw output path is a file path', () => {
            const inputPath: string = `${tmpDirectoryPath}/input/test-input.js`;
            const rawInputPath: string = `${tmpDirectoryPath}/input`;
            const rawOutputPath: string = `${tmpDirectoryPath}/output/test-output.js`;

            let testFunc: () => string;

            before(() => {
                const obfuscatedCodeWriter: ObfuscatedCodeWriter = new ObfuscatedCodeWriter(
                    rawInputPath,
                    {
                        output: rawOutputPath
                    }
                );
                testFunc = () => obfuscatedCodeWriter.getOutputCodePath(inputPath);
            });

            it('should throw an error if output path is a file path', () => {
                assert.throws(testFunc, Error);
            });
        });

        describe('Variant #4: raw input path is a directory path, raw output path is a directory path', () => {
            const inputPath: string = `${tmpDirectoryPath}/input/test-input.js`;
            const rawInputPath: string = `${tmpDirectoryPath}/input`;
            const rawOutputPath: string = `${tmpDirectoryPath}/output`;
            const expectedOutputCodePath: string = `${tmpDirectoryPath}/output/${tmpDirectoryPath}/input/test-input.js`;

            let outputCodePath: string;

            before(() => {
                const obfuscatedCodeWriter: ObfuscatedCodeWriter = new ObfuscatedCodeWriter(
                    rawInputPath,
                    {
                        output: rawOutputPath
                    }
                );
                outputCodePath = obfuscatedCodeWriter.getOutputCodePath(inputPath);
            });

            it('should return output path that contains raw output path and actual file input path', () => {
                assert.equal(outputCodePath, expectedOutputCodePath);
            });
        });

        after(() => {
            rimraf.sync(tmpDirectoryPath);
        });
    });

    describe('getOutputSourceMapPath', () => {
        const rawInputPath: string = `${tmpDirectoryPath}/input/test-input.js`;
        const rawOutputPath: string = `${tmpDirectoryPath}/output/test-output.js`;
        const outputCodePath: string = `${tmpDirectoryPath}/output/test-output.js`;
        const expectedOutputSourceMapPath: string = `${tmpDirectoryPath}/output/test-output.js.map`;

        let outputSourceMapPath: string;

        before(() => {
            const obfuscatedCodeWriter: ObfuscatedCodeWriter = new ObfuscatedCodeWriter(
                rawInputPath,
                {
                    output: rawOutputPath
                }
            );
            outputSourceMapPath = obfuscatedCodeWriter.getOutputSourceMapPath(outputCodePath);
        });

        it('should return output path for source map', () => {
            assert.equal(outputSourceMapPath, expectedOutputSourceMapPath);
        });
    });
});