Code coverage report for src/helpers/markdown.helper.ts

# All files / src/helpers markdown.helper.ts

79.67% Statements 145/182
91.78% Branches 67/73
78.57% Functions 11/14
79.67% Lines 145/182

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     import {
        UsageGuideConfig,
        JsImport,
        IWriteMarkDown,
        ArgumentConfig,
        CommandLineOption,
        ParseOptions,
        Content,
        HeaderLevel,
        OptionContent,
        SectionHeader,
    } from '../contracts';
    import { join } from 'path';
    import { normaliseConfig, createCommandLineConfig } from './command-line.helper';
    import { generateTableFooter, getOptionSections, mapDefinitionDetails } from './options.helper';
    import { convertChalkStringToMarkdown } from './string.helper';

    export function createUsageGuide<T = any>(config: UsageGuideConfig<T>): string {
        const options = config.parseOptions || {};
        const headerSections = options.headerContentSections || [];
        const footerSections = options.footerContentSections || [];

        return [
            ...headerSections.filter(filterMarkdownSections).map((section) => createSection(section, config)),
            ...createOptionsSections(config.arguments, options),
            ...footerSections.filter(filterMarkdownSections).map((section) => createSection(section, config)),
        ].join('\n');
    }

    function filterMarkdownSections(section: Content): boolean {
        return section.includeIn == null || section.includeIn === 'both' || section.includeIn === 'markdown';
    }

    export function createSection<T>(section: Content, config: UsageGuideConfig<T>): string {
        return `
    ${createHeading(section, config.parseOptions?.defaultSectionHeaderLevel || 1)}
    ${createSectionContent(section)}
    `;
    }

    export function createSectionContent(section: Content): string {
        if (typeof section.content === 'string') {
            return convertChalkStringToMarkdown(section.content);
        }

        if (Array.isArray(section.content)) {
            if (section.content.every((content) => typeof content === 'string')) {
                return (section.content as string[]).map(convertChalkStringToMarkdown).join('\n');
            } else if (section.content.every((content) => typeof content === 'object')) {
                return createSectionTable(section.content);
            }
        }

        return '';
    }

    export function createSectionTable(rows: any[]): string {
        if (rows.length === 0) {
            return ``;
        }
        const cellKeys = Object.keys(rows[0]);

        return `
    |${cellKeys.map((key) => ` ${key} `).join('|')}|
    |${cellKeys.map(() => '-').join('|')}|
    ${rows.map((row) => `| ${cellKeys.map((key) => convertChalkStringToMarkdown(row[key])).join(' | ')} |`).join('\n')}`;
    }

    export function createOptionsSections<T>(cliArguments: ArgumentConfig<T>, options: ParseOptions<any>): string[] {
        const normalisedConfig = normaliseConfig(cliArguments);
        const optionList = createCommandLineConfig(normalisedConfig);

        if (optionList.length === 0) {
            return [];
        }

        return getOptionSections(options).map((section) => createOptionsSection(optionList, section, options));
    }

    export function createOptionsSection(
        optionList: CommandLineOption<any>[],
        content: OptionContent,
        options: ParseOptions<any>,
    ): string {
        optionList = optionList.filter((option) => filterOptions(option, content.group));
        const anyAlias = optionList.some((option) => option.alias != null);
        const anyDescription = optionList.some((option) => option.description != null);

        const footer = generateTableFooter(optionList, options);

        return `
    ${createHeading(content, 2)}
    | Argument |${anyAlias ? ' Alias |' : ''} Type |${anyDescription ? ' Description |' : ''}
    |-|${anyAlias ? '-|' : ''}-|${anyDescription ? '-|' : ''}
    ${optionList
        .map((option) => mapDefinitionDetails(option, options))
        .map((option) => createOptionRow(option, anyAlias, anyDescription))
        .join('\n')}
    ${footer != null ? footer + '\n' : ''}`;
    }

    function filterOptions(option: CommandLineOption, groups?: string | string[]): boolean {
        return (
            groups == null ||
            (typeof groups === 'string' && (groups === option.group || (groups === '_none' && option.group == null))) ||
            (Array.isArray(groups) &&
                (groups.some((group) => group === option.group) ||
                    (groups.some((group) => group === '_none') && option.group == null)))
        );
    }

    export function createHeading(section: SectionHeader, defaultLevel: HeaderLevel): string {
        if (section.header == null) {
            return '';
        }

        const headingLevel = Array.from({ length: section.headerLevel || defaultLevel })
            .map(() => `#`)
            .join('');

        return `${headingLevel} ${section.header}
    `;
    }

    export function createOptionRow(option: CommandLineOption, includeAlias = true, includeDescription = true): string {
        const alias = includeAlias ? ` ${option.alias == null ? '' : '**' + option.alias + '** '}|` : ``;
        const description = includeDescription
            ? ` ${option.description == null ? '' : convertChalkStringToMarkdown(option.description) + ' '}|`
            : ``;
        return `| **${option.name}** |${alias} ${getType(option)}|${description}`;
    }

    export function getType(option: CommandLineOption): string {
        if (option.typeLabel) {
            return `${convertChalkStringToMarkdown(option.typeLabel)} `;
        }

        //TODO: add modifiers

        const type = option.type ? option.type.name.toLowerCase() : 'string';
        const multiple = option.multiple || option.lazyMultiple ? '[]' : '';

        return `${type}${multiple} `;
    }

    export function generateUsageGuides(args: IWriteMarkDown): string[] | undefined {
        if (args.jsFile == null) {
            console.log(
                `No jsFile defined for usage guide generation. See 'write-markdown -h' for details on generating usage guides.`,
            );
            return undefined;
        }

        function mapJsImports(imports: JsImport[], jsFile: string) {
            return [...imports, ...args.configImportName.map((importName) => ({ jsFile, importName }))];
        }

        return args.jsFile
            .reduce(mapJsImports, new Array<JsImport>())
            .map(({ jsFile, importName }) => loadArgConfig(jsFile, importName))
            .filter(isDefined)
            .map(createUsageGuide);
    }

    export function loadArgConfig(jsFile: string, importName: string): UsageGuideConfig | undefined {
        const jsPath = join(process.cwd(), jsFile);
        // eslint-disable-next-line @typescript-eslint/no-var-requires
        const jsExports = require(jsPath);

        const argConfig: UsageGuideConfig = jsExports[importName];

        if (argConfig == null) {
            console.warn(`Could not import ArgumentConfig named '${importName}' from jsFile '${jsFile}'`);
            return undefined;
        }

        return argConfig;
    }

    function isDefined<T>(value: T | undefined | null): value is T {
        return value != null;
    }