mongoose = require('mongoose')
Settings = require 'settings-sharelatex'
_ = require('underscore')
FolderSchema = require('./Folder.js').FolderSchema
logger = require('logger-sharelatex')
sanitize = require('sanitizer')
concreteObjectId = require('mongoose').Types.ObjectId
Errors  = require "../errors"


Schema = mongoose.Schema
ObjectId = Schema.ObjectId

ProjectSchema = new Schema
	name              :   {type:String, default:'new project'}
	lastUpdated       :   {type:Date, default: () -> new Date()}
	owner_ref         :   {type:ObjectId, ref:'User'}
	collaberator_refs :   [ type:ObjectId, ref:'User' ]
	readOnly_refs     :   [ type:ObjectId, ref:'User' ]
	rootDoc_id        :   {type: ObjectId}
	rootFolder        :   [FolderSchema]
	publicAccesLevel  :   {type: String, default: 'private'}
	compiler		  :   {type:String, default:'pdflatex'}
	spellCheckLanguage :   {type:String, default:'en'}
	existsInVersioningApi :   {type: Boolean, default: false}
	deletedByExternalDataSource : {type: Boolean, default: false}
	useClsi2          :   {type:Boolean, default: true}
	description : {type:String, default:''}

ProjectSchema.statics.getProject = (project_or_id, fields, callback)->
	if project_or_id._id?
		callback null, project_or_id
	else
		try
			concreteObjectId(project_or_id.toString())
		catch e
			return callback(new Errors.NotFoundError(e.message))
		this.findById project_or_id, fields, callback

ProjectSchema.statics.findPopulatedById = (project_id, callback)->
	this.find(_id: project_id )
			.populate('collaberator_refs')
			.populate('readOnly_refs')
			.populate('owner_ref')
			.exec (err, projects)->
				if err? 
					logger.err err:err, project_id:project_id, "something went wrong looking for project findPopulatedById"
					callback(err)
				else if !projects? || projects.length == 0
					logger.err project_id:project_id, "something went wrong looking for project findPopulatedById, no project could be found"
					callback "not found"
				else
					callback(null, projects[0])

ProjectSchema.statics.findAllUsersProjects = (user_id, requiredFields, callback)->
	this.find {owner_ref:user_id}, requiredFields, (err, projects)=>
		this.find {collaberator_refs:user_id}, requiredFields, (err, collabertions)=>
			this.find {readOnly_refs:user_id}, requiredFields, (err, readOnlyProjects)=>
				callback(projects, collabertions, readOnlyProjects)

sanitizeTypeOfElement = (elementType)->
	lastChar = elementType.slice -1
	if lastChar != "s"
		elementType +="s"
	if elementType == "files"
		elementType = "fileRefs"
	return elementType

ProjectSchema.statics.putElement = (project_id, folder_id, element, type, callback)->
	type = sanitizeTypeOfElement type
	this.findById project_id, (err, project)=>
		if err?
			callback(err)
		if !folder_id?
			folder_id = project.rootFolder[0]._id
		require('../Features/Project/ProjectLocator').findElement {project:project, element_id:folder_id, type:"folders"}, (err, folder, path)=>
			newPath =
				fileSystem: "#{path.fileSystem}/#{element.name}"
				mongo: path.mongo # TODO: This is not correct
			if err?
				callback(err)
			logger.log project_id: project_id, element_id: element._id, type: type, folder_id: folder_id,
				"adding element to project"
			id = element._id+''
			element._id = concreteObjectId(id)
			conditions = _id:project_id
			mongopath = "#{path.mongo}.#{type}"
			update = "$push":{}
			update["$push"][mongopath] = element
			this.update conditions, update, {}, (err)->
				if(err)
					logger.err err: err, project: project, 'error saving in putElement project'
				if callback?
					callback(err, {path:newPath})

getIndexOf = (searchEntity, id)->
	length = searchEntity.length
	count = 0
	while(count < length)
		if searchEntity[count]._id+"" == id+""
			return count
		count++



applyToAllFilesRecursivly = ProjectSchema.statics.applyToAllFilesRecursivly = (folder, fun)->
	_.each folder.fileRefs, (file)->
		fun(file)
	_.each folder.folders, (folder)->
		applyToAllFilesRecursivly(folder, fun)


ProjectSchema.methods.getSafeProjectName = ->
	safeProjectName = this.name.replace(new RegExp("\\W", "g"), '_')
	return sanitize.escape(safeProjectName)

conn = mongoose.createConnection(Settings.mongo.url, server: poolSize: Settings.mongo.poolSize || 10)

Project = conn.model('Project', ProjectSchema)

mongoose.model 'Project', ProjectSchema
exports.Project = Project
exports.ProjectSchema = ProjectSchema