{
  "version": 3,
  "sources": ["../../src/html/mergeDocumentHead.ts", "../../src/lib/getMetaAsDict.ts", "../../src/meta/builder.ts"],
  "sourcesContent": ["import { isString } from '@xylabs/typeof'\nimport { load } from 'cheerio'\n\nconst opts = {}\n// const opts = { decodeEntities: false }\n\n/**\n * Merges meta tags from the source HTML head into the destination HTML head.\n * Existing meta tags with matching property attributes are replaced; others are appended.\n * @param destination - The base HTML string to merge into.\n * @param source - The HTML string whose head meta tags will be merged.\n * @returns The merged HTML string.\n */\nexport const mergeDocumentHead = (destination: string, source: string) => {\n  const $destination = load(destination, opts)\n  const $source = load(source, opts)\n\n  // For each child node of the source head\n  $source('head')\n    .children()\n    .each((_, element) => {\n      const el = $destination(element)\n\n      // Special case for meta tags: We want to match them by the name attribute\n      if (el[0].tagName === 'meta') {\n        const property = el.attr('property')\n        if (isString(property)) {\n          const match = $destination(`head meta[property=\"${property}\"]`)\n\n          // If it exists, replace it, otherwise append it\n          if (match.length > 0) {\n            match.replaceWith(el)\n            return\n          } else {\n            $destination('head').append(el)\n          }\n        }\n        // else {\n        //   // For all other elements, just check if the same element exists in the first HTML string\n        //   const match = $destination(el[0].tagName)\n\n        //   // If it exists, replace it, otherwise append it\n        //   if (match.length > 0) {\n        //     match.replaceWith(el)\n        //   } else {\n        //     $destination('head').append(el)\n        //   }\n        // }\n      }\n    })\n\n  // Return the merged HTML\n  return $destination.html(opts)\n}\n", "import { isString } from '@xylabs/typeof'\n\n/** An object with string keys and arbitrary values, used for recursive meta flattening. */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nexport type StringIndexable = Record<string, any>\n\nconst propertyDelimiter = ':'\n\n/**\n * Recursively flattens a nested meta object into a flat dictionary with colon-delimited keys.\n * @param obj - The nested object to flatten.\n * @param parentKey - The accumulated key prefix from parent levels.\n * @returns A flat record mapping colon-delimited property names to string values.\n */\nexport const getMetaAsDict = (obj: StringIndexable, parentKey?: string): Record<string, string> => {\n  let flatRecord: StringIndexable = {}\n  for (const key in obj) {\n    if (typeof obj[key] === 'object' && obj[key] !== null) {\n      // If the value is another object, we want to iterate through its keys as well.\n      const childRecord = getMetaAsDict(obj[key] as StringIndexable, `${isString(parentKey) ? parentKey : ''}${key}${propertyDelimiter}`)\n      flatRecord = { ...flatRecord, ...childRecord }\n    } else {\n      // Concatenate the key with its parent key.\n      const newKey = isString(parentKey) ? `${parentKey}${key}` : key\n      const trimmed = newKey.endsWith(propertyDelimiter) ? newKey.slice(0, -1) : newKey\n      flatRecord[trimmed] = `${obj[key]}`\n    }\n  }\n  return flatRecord\n}\n", "import { isString } from '@xylabs/typeof'\nimport type { CheerioAPI } from 'cheerio'\nimport { load } from 'cheerio'\n\nimport { getMetaAsDict } from '../lib/index.ts'\nimport type { Meta } from '../models/index.ts'\n\n/* test change */\n\n/**\n * Adds or replaces a meta tag in the document head.\n * @param $ - The Cheerio API instance for the document.\n * @param name - The meta property name.\n * @param value - The meta content value (string, array, or nested object).\n */\nexport const addMetaToHead = ($: CheerioAPI, name: string, value: string | object) => {\n  if (typeof value === 'string') {\n    const newMeta = `<meta property=\"${name}\" content=\"${value}\" />`\n    const existingMeta = $(`head meta[property=\"${name}\"]`)\n    if ((existingMeta?.length ?? 0) > 0) {\n      existingMeta.replaceWith(newMeta)\n    } else {\n      $('head').append(newMeta)\n    }\n  } else if (Array.isArray(value)) {\n    for (const item of value) addMetaToHead($, `${name}`, item)\n  } else if (typeof value === 'object') {\n    for (const [key, v] of Object.entries(value)) {\n      if (key === 'url') {\n        addMetaToHead($, name, v)\n      } else {\n        addMetaToHead($, `${name}:${key}`, v)\n      }\n    }\n  } else {\n    throw new TypeError(`Invalid item type [${name}, ${typeof value}]`)\n  }\n}\n\n/**\n * Injects meta properties, title, and description into an HTML string.\n * @param html - The base HTML string to modify.\n * @param meta - The metadata to inject.\n * @param handler - Optional meta-handler property value to include.\n * @returns The modified HTML string with injected metadata.\n */\nexport const metaBuilder = (html: string, meta: Meta, handler?: string) => {\n  const $ = load(html)\n  // NOTE: This assumes unique meta properties (no duplicates)\n  // which is generally the case, but not always (you can have\n  // multiple og:video:tag tags, for example)\n  const metaProperties = getMetaAsDict(meta)\n  for (const [key, value] of Object.entries(metaProperties)) {\n    addMetaToHead($, key, value)\n  }\n  if (isString(meta.description)) {\n    addMetaToHead($, 'description', meta.description)\n  }\n  if (isString(meta.title)) {\n    $('title').text(meta.title)\n  }\n  if (isString(handler)) {\n    addMetaToHead($, 'meta-handler', handler)\n  }\n  return $.html()\n}\n"],
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  "names": ["isString", "isString", "load", "load", "isString"]
}