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42 lines
2.2 KiB
CoffeeScript
42 lines
2.2 KiB
CoffeeScript
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Project = require('../../models/Project').Project
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ProjectDetailsHandler = require "./ProjectDetailsHandler"
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logger = require('logger-sharelatex')
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settings = require("settings-sharelatex")
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HistoryManager = require "../History/HistoryManager"
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ProjectEntityUpdateHandler = require "./ProjectEntityUpdateHandler"
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module.exports = ProjectHistoryHandler =
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setHistoryId: (project_id, history_id, callback = (err) ->) ->
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# reject invalid history ids
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return callback(new Error("invalid history id")) if !history_id or typeof(history_id) isnt 'number'
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# use $exists:false to prevent overwriting any existing history id, atomically
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Project.update {_id: project_id, "overleaf.history.id": {$exists:false}}, {"overleaf.history.id":history_id}, (err, result)->
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return callback(err) if err?
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return callback(new Error("history exists")) if result?.n == 0
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callback()
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getHistoryId: (project_id, callback = (err, result) ->) ->
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ProjectDetailsHandler.getDetails project_id, (err, project) ->
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return callback(err) if err? # n.b. getDetails returns an error if the project doesn't exist
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callback(null, project?.overleaf?.history?.id)
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ensureHistoryExistsForProject: (project_id, callback = (err) ->) ->
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# We can only set a history id for a project that doesn't have one. The
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# history id is cached in the project history service, and changing an
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# existing value corrupts the history, leaving it in an irrecoverable
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# state. Setting a history id when one wasn't present before is ok,
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# because undefined history ids aren't cached.
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ProjectHistoryHandler.getHistoryId project_id, (err, history_id) ->
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return callback(err) if err?
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return callback() if history_id? # history already exists, success
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HistoryManager.initializeProject (err, history) ->
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return callback(err) if err?
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return callback(new Error("failed to initialize history id")) if !history?.overleaf_id
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ProjectHistoryHandler.setHistoryId project_id, history.overleaf_id, (err) ->
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return callback(err) if err?
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ProjectEntityUpdateHandler.resyncProjectHistory project_id, (err) ->
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return callback(err) if err?
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logger.log {project_id: project_id, history_id: history.overleaf_id}, "started syncing project with new history id"
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HistoryManager.flushProject project_id, callback
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