parser.js

// Import dependencies.
const fs = require('fs');
const path = require('path');
const renderer = require('./views/html');

// Function converting a string according to a legend.
const titleOf = (string, legend) => legend[string] || string;

// Function identifying a list of keys of properties to be rendered.
const keysOf = object =>
  object.order && object.order.format !== 'hide'
    ? object.order.data
    : Object.keys(object).filter(key => object[key].format !== 'hide');

// Function rendering a stringable.
const stringOf = stringable => {
  if (typeof stringable === 'string') {
    return stringable;
  }
  else if (Array.isArray(stringable)) {
    return stringable.map(element => stringOf(element)).join('');
  }
  else if (typeof stringable === 'object') {
    const format = stringable.format;
    const data = stringable.data;
    switch(format) {
      case 'address': {
        const {point, city, region, postalCode, countryCode} = data;
        let line1Item = point;
        const line2Items = [city, region, postalCode, countryCode];
        let line2Item = '';
        if (line2Items[0]) {
          const cityRegion = line2Items.slice(0, 2).filter(
            item => item.length
          ).join(', ');
          const cityRegionCode = [cityRegion, line2Items[2]].filter(
            item => item.length
          ).join(' ');
          line2Item = [cityRegionCode, line2Items[3]].filter(
            item => item.length
          ).join(', ');
        }
        else {
          line1Item = line2Items[2] = '';
          line2Item = line2Items.filter(item => item.length).join(', ');
        }
        return renderer.multilineOf(
          [line1Item, line2Item].filter(item => item.length)
        );
      }
      case 'bulletList': {
        return renderer.bulletListOf(
          data.map(item => renderer.bulletItemOf(stringOf(item)))
        );
      }
      case 'code': {
        return renderer.codeOf(stringOf(data));
      }
      case 'edWork': {
        const {location, startDate, endDate} = data;
        let locationItem = '', dateItem = '';
        if (location) {
          locationItem = data.url ? renderer.hLinkOf(
            location, data.url
          ) : location;
        }
        if (startDate || endDate) {
          dateItem = `${startDate || ''}–${endDate || ''}`;
        }
        const subjectItem = data.subject || '';
        const locationDateItem = [locationItem, dateItem].filter(
          item => item.length
        ).join(', ');
        return [locationDateItem, subjectItem].filter(
          item => item.length
        ).join(': ');
      }
      case 'headedString': {
        return renderer.headedStringOf(
          stringOf(data.head),
          stringOf(data.tail),
          data.hasOwnProperty('delimiter') ? data.delimiter : ''
        );
      }
      case 'hLink': {
        return renderer.hLinkOf(data.label, data.href);
      }
      case 'mailLink': {
        return renderer.mailLinkOf(data.label, data.href);
      }
    }
  }
};

// Function rendering a heading.
const headOf = (object, type) => {
  const headObject = object.head;
  return headObject
    ? renderer.headOf(stringOf(headObject.data), headObject.size, type)
    : '';
};

// Function prepending the title as a heading to an array of content.
const headedOf = (contentArray, title, size, type) => {
  const headedContentArray = contentArray;
  headedContentArray.unshift(renderer.headOf(title, size, type));
  return headedContentArray;
};

// Function rendering the body of an extracted section.
const extractionOf = (fromArray, intoType, headStyle, title, legend) => {
  const bandClass = `band ${headStyle || 'center'}`;
  switch(intoType) {
    case 'basicMainHeads': {
      const {head, subhead} = fromArray[0];
      const content = [
        renderer.paragraphOf(stringOf(head), 1, 'center'),
        renderer.paragraphOf(stringOf(subhead), 2, 'center under')
      ].join('\n');
      return content;
    }
    case 'centeredStrongLines': {
      const content = fromArray.map(
        line => renderer.paragraphOf(stringOf(line), 3, 'center tight strong')
      ).join('\n');
      return content;
    }
    case 'headedWorkVolLists': {
      const subsections = fromArray.map(fromObject => {
        const {organization, role, location, startDate, endDate, highlights}
          = fromObject;
        const head = renderer.headOf(renderer.multilineOf(
          [
            stringOf(organization),
            stringOf(role),
            stringOf(location),
            stringOf(`${startDate} – ${endDate}`)
          ]
        ), 5, 'section-subhead strong');
        const list = renderer.bulletListOf(highlights.map(
          highlight => renderer.bulletItemOf(highlight)
        ));
        const content = [head, list].join('\n');
        return renderer.sectionOf(content, organization, '');
      });
      return headedOf(subsections, title, 3, bandClass).join('\n');
    }
    case 'headedWorkVolParagraphs': {
      const subsections = fromArray.map(fromObject => {
        const {organization, role, website, startDate, endDate, synopsis}
          = fromObject;
        const head = renderer.headOf(stringOf({
          format: 'hLink',
          data: {
            label: organization,
            href: website
          }
        }), 5, '');
        const subhead = renderer.headOf(
          stringOf(`${startDate} – ${endDate}: ${role}`), 6, ''
        );
        const content = [
          head, subhead, renderer.paragraphOf(synopsis, 7, '')
        ].join('\n');
        return renderer.sectionOf(content, organization, '');
      });
      return headedOf(subsections, title, 3, bandClass).join('\n');
    }
    case 'headedConferenceParagraphs': {
      const subsections = fromArray.map(fromObject => {
        const {name, date, title} = fromObject;
        const head = renderer.headOf(`${name}, ${date}`, 5, '');
        const titleLine = renderer.paragraphOf(`“${title}”`, 7, '');
        const content = [head, titleLine].join('\n');
        return renderer.sectionOf(content, name, '');
      });
      return headedOf(subsections, title, 3, bandClass).join('\n');
    }
    case 'headedEducationParagraphs': {
      const subsections = fromArray.map(fromObject => {
        const {
          organization,
          level,
          diploma,
          specialties,
          website,
          startDate,
          endDate,
          synopsis,
          gpa,
          transcript
        } = fromObject;
        const dates = `${startDate} – ${endDate}`;
        const orgLink = stringOf({
          format: 'hLink',
          data: {
            label: organization,
            href: website
          }
        });
        const head = renderer.headOf(`${orgLink}, ${dates}`, 5, '');
        const recordData = [
          level,
          diploma,
          specialties.join(', '),
          gpa ? `${titleOf('gpa', legend)} ${gpa}` : '',
          transcript ? stringOf({
            format: 'hLink',
            data: {
              label: titleOf('transcript', legend),
              href: transcript
            }
          }) : ''
        ];
        const record = recordData.filter(item => item).join('; ');
        const subhead = record ? renderer.headOf(record, 6, '') : '';
        const heads = subhead ? [head, subhead] : [head];
        const content = heads.concat(
          renderer.paragraphOf(synopsis, 7, '')
        ).join('\n');
        return renderer.sectionOf(content, organization, '');
      });
      return headedOf(subsections, title, 3, bandClass).join('\n');
    }
    case 'headedGrantParagraphs': {
      const subsections = fromArray.map(fromObject => {
        const {grantor, date, title} = fromObject;
        const head = renderer.headOf(`${grantor}, ${date}`, 5, '');
        const content = [head, `“${title}”`].join('\n');
        return renderer.sectionOf(content, grantor, '');
      });
      return headedOf(subsections, title, 3, bandClass).join('\n');
    }
    case 'headedPublicationParagraphs': {
      const subsections = fromArray.map(fromObject => {
        const {authors, title, date, publisher, url} = fromObject;
        const authorLine = authors.join(', ');
        const titleLine = url ? stringOf({
          format: 'hLink',
          data: {
            label: title,
            href: url
          }
        }) : title;
        const pubLine = `${publisher}: ${date}`;
        const content = renderer.paragraphOf(
          renderer.multilineOf([authorLine, titleLine, pubLine]), 7, ''
        );
        return renderer.sectionOf(content, title, '');
      });
      return headedOf(subsections, title, 3, bandClass).join('\n');
    }
    case 'introLists': {
      const subsections = fromArray.map(fromObject => {
        const {introTopic, list} = fromObject;
        const head = renderer.headOf(
          stringOf(introTopic), 5, 'strong'
        );
        const items = renderer.bulletListOf(list.map(
          item => renderer.bulletItemOf(item)
        ));
        const content = [head, items].join('\n');
        return renderer.sectionOf(content, introTopic, '');
      });
      return headedOf(subsections, title, 3, bandClass).join('\n');
    }
    case 'headedGroupList': {
      const subsections = fromArray.map(fromObject => {
        const {organization, roles} = fromObject;
        const head = renderer.headOf(
          stringOf(organization), 5, 'strong'
        );
        const roleList = renderer.bulletListOf(roles.map(
          role => renderer.bulletItemOf(role)
        ));
        const content = [head, roleList].join('\n');
        return renderer.sectionOf(content, organization, '');
      });
      return headedOf(subsections, title, 3, bandClass).join('\n');
    }
  }
  return '';
};

/*
  Function returning an HTML document rendering a jsonresume-theme-a11y
  source object.
*/
exports.parse = a11yObject => {
  const lang = a11yObject.lang ? a11yObject.lang.data : 'en';
  const pageTitle = a11yObject.title ? a11yObject.title.data : 'Résumé';
  const style = fs.readFileSync(path.join(__dirname, 'style.css'), 'utf-8');
  const legend = a11yObject.legend ? a11yObject.legend.data : {};
  const footPrefix = titleOf('creditTo', legend);
  const footLink = {
    format: 'hLink',
    data: {
      label: 'jsonresume-theme-a11y',
      href: 'https://www.npmjs.com/package/jsonresume-theme-a11y'
    }
  };
  const footContent = [footPrefix, stringOf(footLink)].join('');
  const footSection = renderer.sectionOf(
    footContent, 'credit', 'theme-credit'
  );
  const sectionNames = keysOf(a11yObject);
  const sections = sectionNames.map(sectionName => {
    const sectionObject = a11yObject[sectionName];
    const format = sectionObject.format;
    const title = titleOf(sectionObject.title, legend);
    const data = sectionObject.data;
    switch(format) {
      case 'boxedBulletList': {
        const head = headOf(data, 'section-head band center');
        const items = data.list.map(
          item => renderer.bulletItemOf(stringOf(item))
        );
        const list = renderer.bulletListOf(items);
        const content = head ? [head, list].join('\n') : list;
        return renderer.sectionOf(content, title, format);
      }
      case 'center': {
        const lines = data.filter(lineSpec => lineSpec.text.length).map(
          lineSpec => renderer.paragraphOf(
            stringOf(lineSpec.text), lineSpec.size, ''
          )
        );
        return renderer.sectionOf(lines.join('\n'), title, format);
      }
      case 'cornerPic': {
        const image = renderer.imageOf(data.src, data.alt);
        return renderer.sectionOf(image, title, format);
      }
      case 'extraction': {
        const content = extractionOf(
          a11yObject[data.from].data, data.into, data.headStyle, title, legend
        );
        return renderer.sectionOf(content, title, `section-head${
          data.into === 'basicMainHeads' ? ' center' : ''
        }`);
      }
      case 'left': {
        const lines = data.map(line => renderer.paragraphOf(line, 7, ''));
        return renderer.sectionOf(lines.join('\n'), title, format);
      }
      case 'rowTables': {
        const rows = data.map(rowArray => renderer.plainRowOf(rowArray));
        const tables = rows.map(
          row => renderer.tableOf([renderer.tableBodyOf([row])], 'rowTable')
        );
        return renderer.sectionOf(tables.join('\n'), title, 'center');
      }
      case 'rowTablesCircled': {
        const compactSectionOf = (content, title, format) => {
          const quasiTable = renderer.squeezeBoxOf(content);
          return renderer.sectionOf(quasiTable, title, format);
        };
        const head = headOf(data, '');
        const rows = data.tables.map(rowArray => renderer.plainRowOf(rowArray));
        const tables = rows.map(
          row => renderer.tableOf([renderer.tableBodyOf([row])], 'rowTable')
        );
        const items = head ? [head, ...tables] : tables;
        return compactSectionOf(
          items.join('\n'), title, 'rowTablesCircled'
        );
      }
      case 'tableLeftHeads': {
        const sectionHead = headOf(data, '');
        const sectionTable = data.table;
        const tableCaption = sectionTable.caption;
        const caption = renderer.captionOf(
          tableCaption.size, tableCaption.data
        );
        const rows = sectionTable.data.map(
          rowSpec => {
            rowSpec.data.unshift(titleOf(rowSpec.label, legend));
            return renderer.leftHeadRowOf(
              rowSpec.data.map(cellSpec => stringOf(cellSpec))
            );
          }
        );
        const body = renderer.tableBodyOf(rows);
        const table = renderer.tableOf([caption, body], 'tableLH');
        const content = sectionHead ? [sectionHead, table].join('\n') : table;
        return renderer.sectionOf(content, title, 'section-head center');
      }
      case 'tableTopHead': {
        const sectionHead = headOf(data, '');
        const sectionTable = data.table;
        const tableCaption = sectionTable.caption;
        const caption = renderer.captionOf(
          tableCaption.size, tableCaption.data
        );
        const head = renderer.headRowOf(
          sectionTable.label.map(string => titleOf(string, legend))
        );
        const etc = renderer.tableBodyOf(sectionTable.data.map(
          rowSpec => renderer.plainRowOf(
            rowSpec.map(cellSpec => stringOf(cellSpec))
          )
        ));
        const table = renderer.tableOf([caption, head, etc], 'tableTH');
        const content = sectionHead ? [sectionHead, table].join('\n') : table;
        return renderer.sectionOf(content, title, 'section-head center');
      }
    }
  });
  const sectionContent = sections.join('\n');
  return renderer.pageOf(sectionContent, footSection, lang, pageTitle, style);
};