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wiki/server/models/tree.mjs

461 lines
15 KiB

import { Model } from 'objection'
import { differenceWith, dropRight, last, nth } from 'lodash-es'
import {
decodeFolderPath,
decodeTreePath,
encodeFolderPath,
encodeTreePath,
generateHash
} from '../helpers/common.mjs'
import { Locale } from './locales.mjs'
import { Site } from './sites.mjs'
const rePathName = /^[a-z0-9-]+$/
const reTitle = /^[^<>"]+$/
/**
* Tree model
*/
export class Tree extends Model {
static get tableName() { return 'tree' }
static get jsonSchema () {
return {
type: 'object',
required: ['fileName'],
properties: {
id: {type: 'string'},
folderPath: {type: 'string'},
fileName: {type: 'string'},
type: {type: 'string'},
title: {type: 'string'},
createdAt: {type: 'string'},
updatedAt: {type: 'string'}
}
}
}
static get jsonAttributes() {
return ['meta']
}
static get relationMappings() {
return {
locale: {
relation: Model.BelongsToOneRelation,
modelClass: Locale,
join: {
from: 'tree.localeCode',
to: 'locales.code'
}
},
site: {
relation: Model.BelongsToOneRelation,
modelClass: Site,
join: {
from: 'tree.siteId',
to: 'sites.id'
}
}
}
}
$beforeUpdate() {
this.updatedAt = new Date().toISOString()
}
$beforeInsert() {
this.createdAt = new Date().toISOString()
this.updatedAt = new Date().toISOString()
}
/**
* Get a Folder
*
* @param {Object} args - Fetch Properties
* @param {string} [args.id] - UUID of the folder
* @param {string} [args.path] - Path of the folder
* @param {string} [args.locale] - Locale code of the folder (when using path)
* @param {string} [args.siteId] - UUID of the site in which the folder is (when using path)
* @param {boolean} [args.createIfMissing] - Create the folder and its ancestor if it's missing (when using path)
*/
static async getFolder ({ id, path, locale, siteId, createIfMissing = false }) {
// Get by ID
if (id) {
const parent = await WIKI.db.knex('tree').where('id', id).first()
if (!parent) {
throw new Error('ERR_NONEXISTING_FOLDER_ID')
}
return parent
} else {
// Get by path
const parentPath = encodeTreePath(path)
const parentPathParts = parentPath.split('.')
const parentFilter = {
folderPath: encodeFolderPath(dropRight(parentPathParts).join('.')),
fileName: last(parentPathParts)
}
const parent = await WIKI.db.knex('tree').where({
...parentFilter,
type: 'folder',
localeCode: locale,
siteId
}).first()
if (parent) {
return parent
} else if (createIfMissing) {
return WIKI.db.tree.createFolder({
parentPath: parentFilter.folderPath,
pathName: parentFilter.fileName,
title: parentFilter.fileName,
locale,
siteId
})
} else {
throw new Error('ERR_NONEXISTING_FOLDER_PATH')
}
}
}
/**
* Add Page Entry
*
* @param {Object} args - New Page Properties
* @param {string} [args.parentId] - UUID of the parent folder
* @param {string} [args.parentPath] - Path of the parent folder
* @param {string} args.pathName - Path name of the page to add
* @param {string} args.title - Title of the page to add
* @param {string} args.locale - Locale code of the page to add
* @param {string} args.siteId - UUID of the site in which the page will be added
* @param {Object} [args.meta] - Extra metadata
*/
static async addPage ({ id, parentId, parentPath, fileName, title, locale, siteId, meta = {} }) {
const folder = (parentId || parentPath) ? await WIKI.db.tree.getFolder({
id: parentId,
path: parentPath,
locale,
siteId,
createIfMissing: true
}) : {
folderPath: '',
fileName: ''
}
const folderPath = folder.folderPath ? `${folder.folderPath}.${folder.fileName}` : folder.fileName
const fullPath = folderPath ? `${folderPath}/${fileName}` : fileName
WIKI.logger.debug(`Adding page ${fullPath} to tree...`)
const pageEntry = await WIKI.db.knex('tree').insert({
id,
folderPath: encodeFolderPath(folderPath),
fileName,
type: 'page',
title: title,
hash: generateHash(fullPath),
localeCode: locale,
siteId,
meta
}).returning('*')
return pageEntry[0]
}
/**
* Add Asset Entry
*
* @param {Object} args - New Asset Properties
* @param {string} [args.parentId] - UUID of the parent folder
* @param {string} [args.parentPath] - Path of the parent folder
* @param {string} args.pathName - Path name of the asset to add
* @param {string} args.title - Title of the asset to add
* @param {string} args.locale - Locale code of the asset to add
* @param {string} args.siteId - UUID of the site in which the asset will be added
* @param {Object} [args.meta] - Extra metadata
*/
static async addAsset ({ id, parentId, parentPath, fileName, title, locale, siteId, meta = {} }) {
const folder = (parentId || parentPath) ? await WIKI.db.tree.getFolder({
id: parentId,
path: parentPath,
locale,
siteId,
createIfMissing: true
}) : {
folderPath: '',
fileName: ''
}
const folderPath = folder.folderPath ? `${folder.folderPath}.${folder.fileName}` : folder.fileName
const fullPath = folderPath ? `${folderPath}/${fileName}` : fileName
WIKI.logger.debug(`Adding asset ${fullPath} to tree...`)
const assetEntry = await WIKI.db.knex('tree').insert({
id,
folderPath: encodeFolderPath(folderPath),
fileName,
type: 'asset',
title: title,
hash: generateHash(fullPath),
localeCode: locale,
siteId,
meta
}).returning('*')
return assetEntry[0]
}
/**
* Create New Folder
*
* @param {Object} args - New Folder Properties
* @param {string} [args.parentId] - UUID of the parent folder
* @param {string} [args.parentPath] - Path of the parent folder
* @param {string} args.pathName - Path name of the folder to create
* @param {string} args.title - Title of the folder to create
* @param {string} args.locale - Locale code of the folder to create
* @param {string} args.siteId - UUID of the site in which the folder will be created
*/
static async createFolder ({ parentId, parentPath, pathName, title, locale, siteId }) {
// Validate path name
if (!rePathName.test(pathName)) {
throw new Error('ERR_INVALID_PATH_NAME')
}
// Validate title
if (!reTitle.test(title)) {
throw new Error('ERR_INVALID_TITLE')
}
parentPath = encodeTreePath(parentPath)
WIKI.logger.debug(`Creating new folder ${pathName}...`)
const parentPathParts = parentPath.split('.')
const parentFilter = {
folderPath: encodeFolderPath(dropRight(parentPathParts).join('.')),
fileName: last(parentPathParts)
}
// Get parent path
let parent = null
if (parentId) {
parent = await WIKI.db.knex('tree').where('id', parentId).first()
if (!parent) {
throw new Error('ERR_NONEXISTING_PARENT_ID')
}
parentPath = parent.folderPath ? `${decodeFolderPath(parent.folderPath)}.${parent.fileName}` : parent.fileName
} else if (parentPath) {
parent = await WIKI.db.knex('tree').where(parentFilter).first()
} else {
parentPath = ''
}
// Check for collision
const existingFolder = await WIKI.db.knex('tree').select('id').where({
siteId: siteId,
localeCode: locale,
folderPath: encodeFolderPath(parentPath),
fileName: pathName
}).first()
if (existingFolder) {
throw new Error('ERR_FOLDER_ALREADY_EXISTS')
}
// Ensure all ancestors exist
if (parentPath) {
const expectedAncestors = []
const existingAncestors = await WIKI.db.knex('tree').select('folderPath', 'fileName').where(builder => {
const parentPathParts = parentPath.split('.')
for (let i = 1; i <= parentPathParts.length; i++) {
const ancestor = {
folderPath: encodeFolderPath(dropRight(parentPathParts, i).join('.')),
fileName: nth(parentPathParts, i * -1)
}
expectedAncestors.push(ancestor)
builder.orWhere({
...ancestor,
type: 'folder'
})
}
})
for (const ancestor of differenceWith(expectedAncestors, existingAncestors, (expAnc, exsAnc) => expAnc.folderPath === exsAnc.folderPath && expAnc.fileName === exsAnc.fileName)) {
WIKI.logger.debug(`Creating missing parent folder ${ancestor.fileName} at path /${ancestor.folderPath}...`)
const newAncestorFullPath = ancestor.folderPath ? `${decodeTreePath(ancestor.folderPath)}/${ancestor.fileName}` : ancestor.fileName
const newAncestor = await WIKI.db.knex('tree').insert({
...ancestor,
type: 'folder',
title: ancestor.fileName,
hash: generateHash(newAncestorFullPath),
localeCode: locale,
siteId: siteId,
meta: {
children: 1
}
}).returning('*')
// Parent didn't exist until now, assign it
if (!parent && ancestor.folderPath === parentFilter.folderPath && ancestor.fileName === parentFilter.fileName) {
parent = newAncestor[0]
}
}
}
// Create folder
const fullPath = parentPath ? `${decodeTreePath(parentPath)}/${pathName}` : pathName
const folder = await WIKI.db.knex('tree').insert({
folderPath: encodeFolderPath(parentPath),
fileName: pathName,
type: 'folder',
title: title,
hash: generateHash(fullPath),
localeCode: locale,
siteId: siteId,
meta: {
children: 0
}
}).returning('*')
// Update parent ancestor count
if (parent) {
await WIKI.db.knex('tree').where('id', parent.id).update({
meta: {
...(parent.meta ?? {}),
children: (parent.meta?.children || 0) + 1
}
})
}
WIKI.logger.debug(`Created folder ${folder[0].id} successfully.`)
return folder[0]
}
/**
* Rename a folder
*
* @param {Object} args - Rename Folder Properties
* @param {string} args.folderId - UUID of the folder to rename
* @param {string} args.pathName - New path name of the folder
* @param {string} args.title - New title of the folder
*/
static async renameFolder ({ folderId, pathName, title }) {
// Get folder
const folder = await WIKI.db.knex('tree').where('id', folderId).first()
if (!folder) {
throw new Error('ERR_NONEXISTING_FOLDER_ID')
}
// Validate path name
if (!rePathName.test(pathName)) {
throw new Error('ERR_INVALID_PATH_NAME')
}
// Validate title
if (!reTitle.test(title)) {
throw new Error('ERR_INVALID_TITLE')
}
WIKI.logger.debug(`Renaming folder ${folder.id} path to ${pathName}...`)
if (pathName !== folder.fileName) {
// Check for collision
const existingFolder = await WIKI.db.knex('tree')
.whereNot('id', folder.id)
.andWhere({
siteId: folder.siteId,
folderPath: folder.folderPath,
fileName: pathName
}).first()
if (existingFolder) {
throw new Error('ERR_FOLDER_ALREADY_EXISTS')
}
// Build new paths
const oldFolderPath = encodeFolderPath(folder.folderPath ? `${folder.folderPath}.${folder.fileName}` : folder.fileName)
const newFolderPath = encodeFolderPath(folder.folderPath ? `${folder.folderPath}.${pathName}` : pathName)
// Update children nodes
WIKI.logger.debug(`Updating parent path of children nodes from ${oldFolderPath} to ${newFolderPath} ...`)
await WIKI.db.knex('tree').where('siteId', folder.siteId).andWhere('folderPath', oldFolderPath).update({
folderPath: newFolderPath
})
await WIKI.db.knex('tree').where('siteId', folder.siteId).andWhere('folderPath', '<@', oldFolderPath).update({
folderPath: WIKI.db.knex.raw(`'${newFolderPath}' || subpath(tree."folderPath", nlevel('${newFolderPath}'))`)
})
// Rename the folder itself
const fullPath = folder.folderPath ? `${decodeFolderPath(folder.folderPath)}/${pathName}` : pathName
await WIKI.db.knex('tree').where('id', folder.id).update({
fileName: pathName,
title: title,
hash: generateHash(fullPath)
})
} else {
// Update the folder title only
await WIKI.db.knex('tree').where('id', folder.id).update({
title: title
})
}
WIKI.logger.debug(`Renamed folder ${folder.id} successfully.`)
}
/**
* Delete a folder
*
* @param {String} folderId Folder ID
*/
static async deleteFolder (folderId) {
// Get folder
const folder = await WIKI.db.knex('tree').where('id', folderId).first()
if (!folder) {
throw new Error('ERR_NONEXISTING_FOLDER_ID')
}
const folderPath = folder.folderPath ? `${folder.folderPath}.${folder.fileName}` : folder.fileName
WIKI.logger.debug(`Deleting folder ${folder.id} at path ${folderPath}...`)
// Delete all children
const deletedNodes = await WIKI.db.knex('tree').where('folderPath', '<@', encodeFolderPath(folderPath)).del().returning(['id', 'type'])
// Delete folders
const deletedFolders = deletedNodes.filter(n => n.type === 'folder').map(n => n.id)
if (deletedFolders.length > 0) {
WIKI.logger.debug(`Deleted ${deletedFolders.length} children folders.`)
}
// Delete pages
const deletedPages = deletedNodes.filter(n => n.type === 'page').map(n => n.id)
if (deletedPages.length > 0) {
WIKI.logger.debug(`Deleting ${deletedPages.length} children pages...`)
// TODO: Delete page
}
// Delete assets
const deletedAssets = deletedNodes.filter(n => n.type === 'asset').map(n => n.id)
if (deletedAssets.length > 0) {
WIKI.logger.debug(`Deleting ${deletedPages.length} children assets...`)
// TODO: Delete asset
}
// Delete the folder itself
await WIKI.db.knex('tree').where('id', folder.id).del()
// Update parent children count
if (folder.folderPath) {
const parentPathParts = folder.folderPath.split('.')
const parent = await WIKI.db.knex('tree').where({
folderPath: encodeFolderPath(dropRight(parentPathParts).join('.')),
fileName: last(parentPathParts)
}).first()
await WIKI.db.knex('tree').where('id', parent.id).update({
meta: {
...(parent.meta ?? {}),
children: (parent.meta?.children || 1) - 1
}
})
}
WIKI.logger.debug(`Deleted folder ${folder.id} successfully.`)
}
}