All files / src/Linter Linter.ts

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33.62% Branches 39/116
3.45% Functions 1/29
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import detectFormat           from '../modules/detectFormat';
import detectVersion          from '../modules/detectVersion';
import documentConstructor    from '../modules/documentConstructor';
import documentFactory        from '../modules/documentFactory';
import IDocumentLike          from '../NodeLike/ParentNodeLike/DocumentLike/IDocumentLike';
import IElementLike           from '../NodeLike/ParentNodeLike/ElementLike/IElementLike';
import ILinter                from './ILinter';
import ILinterOptions         from './ILinterOptions';
import ILinterOptionsArgument from './ILinterOptionsArgument'
import IParser                from '../Parser/IParser';
import isIElementLike         from '../TypeGuards/isIElementLike';
import ITask                  from '../Task/ITask';
import constants              from '../constants';      
import TIndexableObject       from '../TypeAliases/TIndexableObject';
import TPassage               from '../TypeAliases/TPassage';
const semver = require('semver');
class Linter implements ILinter {
  readonly parser:  IParser;
  readonly options: ILinterOptions;
 
  constructor(
    parser:  IParser,
    options: ILinterOptionsArgument = {})
  { 
    if (!parser || typeof parser.parse !== 'function') {
      throw new Error('The parser argument did not have a parse method.');
    }
 
    this.parser = parser;
 
    if (!options || typeof options !== 'object') {
      throw new Error('The options argument was not an object.');
    }
 
    const opts = <TIndexableObject>{};
 
    if ('passageIgnores' in options) {
      if (typeof options.passageIgnores !== 'object') {
        throw new Error('The passageIgnores property of the options ' +
                        'argument was not an object.');
      }
 
      opts.passageIgnores = options.passageIgnores;
    } else {
      opts.passageIgnores = constants.passageIgnores;
    }
 
    if ('detectionMode' in options) {
      if (!options.detectionMode ||
        typeof options.detectionMode !== 'string')
      {
        throw new Error('The detectionMode property of the options argument ' +
                        'was not a string with content.');
      }
 
      const detectionMode = options.detectionMode.toLowerCase();
      const keys = Object.keys(constants.detectionModes);
      if (keys.indexOf(detectionMode) === -1) {
        throw new Error('The detectionMode property of the options argument ' +
                        'was not a recognized detection mode. Recognized modes ' +
                        `are ${keys.join(', ')}.`);
      }
 
      opts.detectionMode = detectionMode;
    } else {
      opts.detectionMode = 'manual';
    }
 
    if ('format' in options) {
      if (typeof options.format !== 'string') {
        throw new Error('The format property of the options argument was ' +
                        'not a string.');
      }
 
      const format = options.format.toLowerCase();
      const keys = Object.keys(constants.formats);
      Iif (keys.indexOf(format) === -1) {
        throw new Error('The format property of the options argument ' +
                        'was not a recognized format. Recognized formats ' +
                        `are ${keys.join(', ')}.`);
      }
 
      opts.format = format;
    } else {
      if (!isIElementLike(options.storyData)) {
        throw new Error('The options.storyData argument is not an element.');
      }
 
      opts.format = detectFormat(options.storyData, opts.detectionMode);
    }
 
    if ('version' in options) {
      if (typeof options.version !== 'string') {
        throw new Error('The version property of the options argument was ' +
                        'not a string.');
      } else if (!semver.valid(options.version)) {
        throw new Error('The version property of the options argument was ' +
                        'not a valid semantic version.');
      }
 
      opts.version = options.version;
    } else {
      Iif (!isIElementLike(options.storyData)) {
        throw new Error('The storyDataElem argument is not an element.');
      }
 
      opts.version = detectVersion(options.storyData, opts.detectionMode);
    }
 
    if ('documentConstructor' in options) {
      if (typeof options.documentConstructor !== 'function') {
        throw new Error('The documentConstructor property of the options ' +
                        'argument is not a function.');
      }
 
      opts.documentConstructor = options.documentConstructor;
    } else {
      opts.documentConstructor = documentConstructor;
    }
 
    this.options = <ILinterOptions>opts;
  }
 
  lint(
    storyData: IElementLike,
    tasks: Array<ITask>,
    options?: ILinterOptions): Array<ITask>
  {
    if (!tasks ||
      typeof tasks !== 'object' ||
      Number.isNaN(Number(tasks.length)) ||
      typeof tasks.forEach !== 'function')
    {
      throw new Error('The tasks argument was not an array.');
    } else if (tasks.length <= 0) {
      throw new Error('No tasks were provided to the lint method.');
    }
 
    tasks.forEach((task) => {
      if (!task || typeof task !== 'object') {
        throw new Error('One of the tasks was not an object.');
      } if (typeof task.execute !== 'function' &&
        typeof task.executeMicrotask !== 'function')
      {
        throw new Error('One of the tasks had neither an execute nor an ' +
                        'executeMicrotask method.');
      }
    });
 
    let _opts: ILinterOptionsArgument;
    if (typeof options === 'undefined') {
      if (!this.options || typeof options !== 'object') {
        throw new Error('The options property of this Linter is not an object.');
      }
 
      _opts = JSON.parse(JSON.stringify(this.options));
    } else {
      _opts = JSON.parse(JSON.stringify(options));
    }
 
    const opts = <ILinterOptions>_opts;
    if (!opts.format || typeof opts.format !== 'string') {
      throw new Error('The options.format property of this Linter was not a ' +
                      'string with content.');
    }
 
    opts.format = opts.format.toLowerCase();
    const keys = Object.keys(constants.formats);
    if (keys.indexOf(opts.format.toLowerCase()) === -1) {
      throw new Error('The options.format property on this Linter is not ' +
                      'contained in constants.formats.');
    } else if (!opts.version || typeof opts.version !== 'string') {
      throw new Error('The options.version property of this Linter was not ' +
                      'a string.');
    } else if (!semver.valid(opts.version)) {
      throw new Error('The options.version property of this Linter was not ' +
                      'a valid semantic version.');
    } else if (typeof opts.documentConstructor !== 'function') {
      throw new Error('The options.documentConstructor property on this ' +
                      'Linter was not a function.');
    }
    
 
    const passages = this.generateILStageOne(storyData, opts);
 
    const isolationChambers: Array<IDocumentLike> = [];
    let len = 1;
    if (opts.runInIsolation) {
      len = tasks.length;
    }
 
    for (let ii = 0; ii < len; ii += 1) {
      const doc = documentFactory(
        passages,
        opts.documentConstructor);
 
      isolationChambers.push(doc);
    }
 
    return this.runTasks(tasks, isolationChambers, opts);
  }
 
  generateILStageOne(
    storyData: IElementLike,
    options?:  ILinterOptions): Array<TPassage>
  {
    let opts = options;
    if (!isIElementLike(storyData)) {
      throw new Error('The storyDataElem argument was not an element.');
    } else if (typeof opts === 'undefined') {
      opts = this.options;
      if (!opts || typeof opts !== 'object') {
        throw new Error('The options argument was not provided, and the ' +
                        'options property on this Linter was not an object.');
      }
    }
 
    const passages: Array<TPassage> = [];
    let counter = 0;
    const children = storyData.children;
    for (let ii = 0; ii < children.length; ii += 1) {
      const child = children[ii];
      const tagName = child.tagName.toLowerCase();
      let passageName;
      const version = opts.version;
      let requirement = '^1';
      if (semver.satisfies(version, requirement)) {
        passageName = child.getAttribute('tiddler');
      }
 
      requirement = '^2';
      if (semver.satisfies(require, '2')) {
        passageName = child.getAttribute('name');
      } else {
        passageName = `UNKNOWN_${counter}`;
      }
 
      if (!passageName) {
        throw new Error('A passage name could not be found in one of the ' +
                        'passage elements.');
      }
 
      /* Don't lint any passages that match on element tag or passage name. */
      if (this.options.passageIgnores.elementTags.indexOf(tagName) !== -1 ||
          this.options.passageIgnores.passageNames.indexOf(passageName) !== -1)
      {
        continue;
      }
 
      /* Don't lint any passages that match on a passage tag. */
      const tags = (child.getAttribute('tags') || '')
        .split(' ')
        .filter(aa => aa);
 
      let found = false;
      for (let ii = 0; ii < tags.length; ii += 1) {
        const tag = tags[ii];
        if (this.options.passageIgnores.passageTags.indexOf(tag) !== -1) {
          found = true;
          break;
        }
      }
 
      /* Skip the passage if a tag matched an ignore rule. */
      if (found) {
        continue;
      }
 
      const abstractSyntaxTree = this.parser.parse(child.textContent);
      if (!abstractSyntaxTree || !abstractSyntaxTree.length) {
        throw new Error('There is no output.');
      }
 
      passages.push({
        abstractSyntaxTree,
        passageName,
        tags,
      });
 
      counter += 1;
    }
    
    return passages;
  }
 
  generateILStageTwo(passages: Array<TPassage>): IDocumentLike {
    return documentFactory(passages);
  }
 
  protected runTasks(
    tasks:             Array<ITask>,
    isolationChambers: Array<IDocumentLike>,
    linterOptions:     ILinterOptions,
    taskOptions:       Array<any> = []): Array<ITask>
  {
    if (linterOptions.runInIsolation) {
      return this.runTasksInIsolation(
        tasks,
        isolationChambers,
        linterOptions,
        taskOptions);
    } else {
      return this.runTasksInParallel(
        tasks,
        isolationChambers[0],
        linterOptions,
        taskOptions);
    }
  }
 
  protected runTasksInParallel(
    tasks:         Array<ITask>,
    document:      IDocumentLike,
    linterOptions: ILinterOptions,
    options:       Array<any> = []): Array<ITask>
  {
    tasks.forEach((task) => {
      task.preSetup(document, options);
    });
 
    tasks.forEach((task) => {
      task.setup(document, options);
    });
 
    tasks.forEach((task) => {
      task.postSetup(document, options);
    });
 
    tasks.forEach((task) => {
      task.preExecute(document, options);
    });
    
    const children = document.querySelector('tw-storydata').children;
    for (let ii = 0; ii < children.length; ii += 1) {
      const passageData = children[ii];
      const passageName = passageData.getAttribute('name');
      const descendants = passageData.querySelectorAll('*');
      for (let jj = 0; jj < descendants.length; jj += 1) {
        const descendant = descendants[jj];
        tasks.forEach((task) => {
          (<Function>task.executeMicrotask)(
            descendant,
            passageName,
            linterOptions.format,
            linterOptions.version
          );
        });
      }
    }
 
    tasks.forEach((task) => {
      task.postExecute(document, options);
    });
 
    tasks.forEach((task) => {
      task.preComplete(document, options);
    });
 
    tasks.forEach((task) => {
      task.complete(document, options);
    });
 
    tasks.forEach((task) => {
      task.postComplete(document, options);
    });
 
    return tasks;
  }
 
  protected runTasksInIsolation(
    tasks: Array<ITask>,
    isolationChambers: Array<IDocumentLike>,
    linterOptions: ILinterOptions,
    options: Array<any> = []): Array<ITask>
  {
    tasks.forEach((task, ii) => {
      task.preSetup(isolationChambers[ii], options);
    });
 
    tasks.forEach((task, ii) => {
      task.setup(isolationChambers[ii], options);
    });
 
    tasks.forEach((task, ii) => {
      task.postSetup(isolationChambers[ii], options);
    });
 
    tasks.forEach((task, ii) => {
      task.preExecute(isolationChambers[ii], options);
    });
 
    tasks.forEach((task, ii) => {
      if (typeof task.execute === 'function') {
        task.execute(isolationChambers[ii], options);
      } else if (typeof task.executeMicrotask === 'function') {
        const doc = isolationChambers[ii];
        doc.querySelector('tw-storydata').children
          .forEach((passageData) => {
            const passageName = passageData.getAttribute('name');
            passageData.getDescendants().forEach((descendant) => {
              (<Function>task.executeMicrotask)(
                descendant,
                passageName,
                linterOptions.format,
                linterOptions.version
              )
            });
          });
      } else {
        throw new Error('ITask has neither execute or executeMicrotask ' +
                        'methods.');
      }
    });
 
    tasks.forEach((task, ii) => {
      task.postExecute(isolationChambers[ii], options);
    });
 
    tasks.forEach((task, ii) => {
      task.preComplete(isolationChambers[ii], options);
    });
 
    tasks.forEach((task, ii) => {
      task.complete(isolationChambers[ii], options);
    });
 
    tasks.forEach((task, ii) => {
      task.postComplete(isolationChambers[ii], options);
    });
 
    return tasks;
  }
};
 
export default Linter;