const bcrypt = require( 'bcrypt' );
const fs = require( 'fs-extra' );
const path = require( 'path' );
const jsonfile = require( 'jsonfile' );
const glob = require( 'glob' );
const Mustache = require( 'mustache' );
const jwt = require( 'jwt-simple' );
const { DateTime } = require( 'luxon' );
const UUID = require( 'uuid' );
const Outputs = require( '../models/Outputs.js' );
const config = require( '../tribes/townconf.js' );
const checkdata = require( `${config.tribes}/${config.mayorId}/www/cdn/public/js/checkdata` );
/*
Message manager
* Manage apixtribe message at different level
* this means that an object (most often a user or a contact) want to send a question to an other user.


To know more http://gitlab.ndda.fr/philc/apixtribe/-/wikis/HOWTONotification

*/
const Messages = {};
Messages.init = () => {
	console.group( 'init Message' );
	Messages.aggregate();
}

Messages.byEmailwithmailjet = ( tribeid, msg ) => {
	/* @tribeid requester
		 @msg =[{
		              To:[{Email,Name}],
		              Cc:[{Email,Name}],
									Bcc:[{Email,Name}]}],
									Subject:"Subject",
									TextPart:"texte content",
									HTMLPart:"html content"
								}]
		If tribeid has a mailjet account it use it if not then it use the apixtribe @mailjetconf = {apikeypub:, apikeypriv:, From:{Email:,Name:}}
		This send a bunch of messages check the mailjet account used
		FYI: Basic account is 200 email /days 6000 /month
		Log is stored into
    tribeidsender/messages/logs/sent/timestamp.json
		@todo GUI to manage statistics and notification alert limit sender email
	*/
	console.log( 'Envoie mailjet' )
	const confclient = fs.readJsonSync( `${config.tribes}/${tribeid}/clientconf.json` );
	let tribeidsender = tribeid;
	if( confclient.smtp && confclient.smtp.mailjet ) {
		mailjetconf = confclient.smtp.mailjet;
	} else {
		const confapixtribe = fs.readJsonSync( `${config.tribes}/${config.mayorId}/clientconf.json` );
		if( !( confapixtribe.smtp && confapixtribe.smtp.mailjet ) ) {
			return { status: 403, data: { models: "Messages", info: [ "nosmtpmailjet" ], moreinfo: "missing smtpmailjet parameter in apixtribe contact your admin to activate an mailjet account on this server." } }
		}
		tribeidsender = "apixtribe";
		mailjetconf = confapixtribe.smtp.mailjet;
	}
	//add from from setings account
	const MSG = msg.map( m => { m.From = mailjetconf.From; return m; } );
	const mailjet = require( 'node-mailjet' )
		.connect( mailjetconf.apikeypub, mailjetconf.apikeypriv );
	const request = mailjet.post( 'send', { version: 'v3.1' } )
		.request( { "Messages": MSG } );
	request
		.then( result => {
			//store into tribeidsender/messages/logs/sent/timestamp.json
			const t = Date.now();
			MSG.result = result.body;
			fs.outputJson( `${config.tribes}/${tribeidsender}/messages/logs/sent/${t}.json`, MSG )
			console.log( result.body )
		} )
		.catch( err => {
			const t = Date.now();
			MSG.result = err;
			fs.outputJson( `${config.tribes}/${tribeidsender}/messages/logs/error/${t}.json`, MSG )
			console.log( err.statusCode, err )
		} )

};
Messages.buildemail = ( tribeid, tplmessage, data ) => {
	/* @tribeid => client concerned by sending email get info from clientconf.json (customization, useradmin:{ EMAIL,LOGIN} , ...)
     @tplmessage => folder where template is available (ex: apixtribe/referentials/dataManagement/template/order)
		 @data { destemail =  email to
             if destuuid => then it get user EMAIL if exiat
						 subject = mail subject
						 // any relevant information for template message
						 msgcontenthtml = html msg content
						 msgcontenttxt = text msg content
						 ....}
		 @return msg
		  mail part ready to send by mailjet or other smtp
	*/
	if( !fs.existsSync( `${config.tribes}/${tribeid}/clientconf.json` ) ) {
		return { status: 404, data: { model: "Messages", info: [ "tribeiddoesnotexist" ], moreinfo: `${tribeid} does not exist` } }
	}
	if( !fs.existsSync( `${config.tribes}/${tplmessage}` ) ) {
		return { status: 404, data: { model: "Messages", info: [ "tplmessagedoesnotexist" ], moreinfo: `tpl does not exist ${tplmessage}` } }
	}
	const clientconf = fs.readJsonSync( `${config.tribes}/${tribeid}/clientconf.json` )
	//add clientconf.customization into data for template
	data.customization = clientconf.customization;
	//manage receiver
	const msg = { To: [ { Email: clientconf.useradmin.EMAIL, Name: clientconf.useradmin.LOGIN } ] };
	if( data.destemail ) {
		msg.To.push( { Email: data.destemail } )
	}
	if( data.destuuid && fs.exist( `${config.tribes}/${tribeid}/users/${data.destuuid}.json` ) ) {
		const uuidconf = fs.readJsonSync( `${config.tribes}/${tribeid}/users/${data.destuuid}.json` );
		if( uuidconf.EMAIL && uuidconf.EMAIL.length > 4 ) {
			msg.To.push( { Email: uuidconf.EMAIL, Name: uuidconf.LOGIN } )
		}
	}
	//console.log( data )
	// email content
	msg.Subject = `Message from ${tribeid}`;
	if( data.subject ) msg.Subject = data.subject;
	msg.TextPart = Mustache.render( fs.readFileSync( `${config.tribes}/${data.tplmessage}/contenttxt.mustache`, 'utf-8' ), data );
	msg.HTMLPart = Mustache.render( fs.readFileSync( `${config.tribes}/${data.tplmessage}/contenthtml.mustache`, 'utf-8' ), data );
	return {
		status: 200,
		data: { model: "Messages", info: [ "msgcustomsuccessfull" ], msg: msg }
	}
};
Messages.postinfo = ( data ) => {
	/*
	  Data must have:
	 	at least one of desttribeid:,destuuid:,destemail:
		if an email have to be sent tplmessage:"tribeid/referentials/dataManagement/template/tplname",
	  at least one of contactemail:,contactphone,contactlogin,contactuuid
		any other usefull keys

		Data is stored into contacts object .json
	*/
	let contact = "";
	 [ 'contactemail', 'contactphone', 'contactuuid', 'contactlogin' ].forEach( c => {
		if( data[ c ] ) contact += c + "##" + data[ c ] + "###";
	} )
	console.log( contact )
	if( contact == "" ) {
		return { status: 404, data: { model: "Messages", info: [ "contactundefine" ], moreinfo: "no contact field found in this form" } }
	}
	if( !data.desttribeid ) {
		return { status: 404, data: { model: "Messages", info: [ "tribeidundefine" ], moreinfo: "no desttribeid field found in this form" } }
	}
	// save new message in contacts
	let messages = {};
	if( fs.existsSync( `${config.tribes}/${data.desttribeid}/contacts/${contact}.json` ) ) {
		messages = fs.readJsonSync( `${config.tribes}/${data.desttribeid}/contacts/${contact}.json`, 'utf-8' );
	}
	messages[ Date.now() ] = data;
	fs.outputJsonSync( `${config.tribes}/${data.desttribeid}/contacts/${contact}.json`, messages );

	// if templatemessage exist then we send alert email
	// data content have to be consistent with tplmessage to generate a clean email
	if( data.tplmessage && data.tplmessage != "" &&
		fs.existsSync( `${config.tribes}/${data.tplmessage}` ) ) {
		if( !( data.msgtplhtml && data.msgtpltxt ) ) {
			data.msgcontenthtml = `<p>${data.contactname} - ${contact.replace(/###/g,' ').replace(/##/g,":")}</p><p>Message: ${data.contactmessage}</p>`
			data.msgcontenttxt = `${data.contactname} - ${contact}/nMessage:${data.contactmessage}\n`;
		} else {
			data.msgcontenthtml = Mustache.render( data.msgtplhtml, data )
			data.msgcontenttxt = Mustache.render( data.msgtpltxt, data )
		}
		const msg = Messages.buildemail( data.desttribeid, data.tplmessage, data )
		if( msg.status == 200 ) {
			Messages.byEmailwithmailjet( data.desttribeid, [ msg.data.msg ] );
		}
		// we get error message eventualy but email feedback sent is not in real time
		return msg;
	} else {
		return { status: 404, data: { info: "missingtpl", model: "Messages", moreinfo: `missing template ${data.tplmessage}` } }
	}
}
Messages.aggregate = () => {
	// collect each json file and add them to a global.json notifat require level
	const dest = {};
	try {
		glob.sync( `${ config.tribes }/**/notif_*.json` )
			.forEach( f => {
				//console.log( 'find ', f )
				const repglob = `${path.dirname(f)}/global.json`;
				if( !dest[ repglob ] ) { dest[ repglob ] = [] }
				dest[ repglob ].push( fs.readJsonSync( f, 'utf-8' ) );
				fs.removeSync( f );
			} )
		//console.log( dest )
		Object.keys( dest )
			.forEach( g => {
				let notif = [];
				if( fs.existsSync( g ) ) { notif = fs.readJsonSync( g ) };
				fs.writeJsonSync( g, notif.concat( dest[ g ] ), 'utf-8' );
			} )
	} catch ( err ) {
		Console.log( "ATTENTION, des Messages risquent de disparaitre et ne sont pas traitées." );
	}
}
Messages.object = ( data, header ) => {
	/*
	Create or replace an object no check at all here this is only
	a way to add / replace object
	if deeper thing have to be checheck or done then a callback:{tribeidplugin,pluginname,functionname}
	data.descttribeid tribeid to send at least to admin
	data.tplmessage = folder of emailtemplate
	*/
	console.log( 'data', data )
	console.log( `${config.tribes}/${header.xworkon}/${data.object}` )
	if( !fs.existsSync( `${config.tribes}/${header.xworkon}/${data.object}` ) ) {
		return {
			status: 404,
			data: {
				model: "Messages",
				info: [ 'UnknownObjectfortribeid' ],
				moreinfo: `This object ${data.object} does not exist for this tribeid ${header.xworkon}`
			}
		};
	}
	if( data.uuid == 0 ) {
		data.uuid = UUID.v4();
	}
	if( data.callback ) {
		// check from plugin data and add relevant data
		const Plug = require( `${config.tribes}/${data.callback.tribeid}/plugins/${data.callback.plugins}/Model.js` );
		const check = Plug[ data.callback.function ]( header.xworkon, data );
		if( check.status == 200 ) {
			data = check.data.data;
		} else {
			return check;
		}
	};
	fs.outputJsonSync( `${config.tribes}/${header.xworkon}/${data.object}/${data.uuid}.json`, data );
	// if templatemessage exist then we try to send alert email
	if( data.tplmessage && data.tplmessage != "" &&
		fs.existsSync( `${config.tribes}/${data.tplmessage}` ) ) {
		const msg = Messages.buildemail( data.desttribeid, data.tplmessage, data )
		if( msg.status == 200 ) {
			console.log( 'WARN EMAIL DESACTIVATED CHANGE TO ACTIVATE in Messages.js' )
			//Messages.byEmailwithmailjet( data.desttribeid, [ msg.data.msg ] );
		}
		// we get error message eventualy but email feedback sent is not in real time see notification alert in case of email not sent.
	};
	//Sendback data with new information
	return {
		status: 200,
		data: {
			model: "Messages",
			info: [ 'Successregisterobject' ],
			msg: data
		}
	};
}
Messages.notification = ( data, header ) => {
	//check if valid notification
	if( !req.body.elapseddays ) { req.body.elapseddays = 3 }
	let missingkey = "";
	[ 'uuid', 'title', 'desc', 'icon', 'elapseddays', 'classicon' ].forEach( k => {
		if( !data[ k ] ) missingkey += ` ${k},`
		if( k == "classicon" && !( [ 'text-danger', 'text-primary', 'text-success', 'text-warning', 'text-info' ].includes( data[ k ] ) ) ) {
			missingkey += ` classicon is not well set ${data[k]}`;
		}
	} )
	if( missingkey != '' ) {
		return {
			status: 422,
			data: {
				model: "Messages",
				info: [ 'InvalidNote' ],
				moreinfo: `invalid notification sent cause missing key ${missingkey}`
			}
		};
	}
	if( !fs.existsSync( `${config.tribes}/${header.xworkon}/${data.object}` ) ) {
		return {
			status: 404,
			data: {
				model: "Messages",
				info: [ 'UnknownObjectfortribeid' ],
				moreinfo: `This object ${data.object} does not exist for this tribeid ${data.tribeid}`
			}
		};
	}
	//by default store in tmp/notification this is only for sysadmin
	// user adminapixtribe
	let notdest = `${config.tmp}`;

	if( data.app ) {
		const destapp = `${config.tribes}/${data.app.split(':')[0]}/spacedev/${data.app.split(':')[1]}`;
		if( fs.existsSync( destapp ) ) {
			notdest = destapp;
		}
	}
	if( data.plugins ) {
		const destplugin = `${config.tribes}/${data.plugins.split(':')[0]}/plugins/${data.plugins.split(':')[1]}`;
		if( fs.existsSync( destplugin ) ) {
			notdest = destplugin;
		}
	}
	if( data.object ) {
		const destobject = `${config.tribes}/${data.tribeid}/${data.object}/`;
		if( fs.existsSync( destobject ) ) {
			notdest = destobject;
		}
	}
	if( !data.time ) {
		data.time = Date.now();
	}
	fs.outputJsonSync( `${notdest}/Messages/notif_${data.time}.json`, data );

	return {
		status: 200,
		data: {
			model: "Messages",
			info: [ 'Successregisternotification' ],
			notif: data
		}
	};
}

Messages.request = ( tribeid, uuid, ACCESSRIGHTS, apprequest ) => {
	// list notif for each app
	// list notif for each tribeid / objects if Owned
	// list notif for
	// check uuid notification
	// Collect all notification and agregate them at relevant level;
	Messages.aggregate();

	//for test purpose
	//const notif = jsonfile.readFileSync( `${config.tribes}/ndda/spacedev/mesa/src/static/components/notification/data_notiflist_fr.json` );
	let notif;
	if( !fs.existsSync( `${config.tribes}/${apprequest.tribeid}/spacedev/${apprequest.website}/src/static/components/notification/data_notiflist_${apprequest.lang}.json` ) ) {
		// by default we send back this but this highlght an issue
		notif = {
			"iconnotif": "bell",
			"number": 1,
			"notifheader": "Your last Messages",
			"notiffooter": "Check all Messages",
			"actionnotifmanager": "",
			"href": "?action=notification.view",
			"notifs": [ {
				"urldetail": "#",
				"classicon": "text-danger",
				"icon": "alert",
				"title": `File does not exist`,
				"desc": ` ${config.tribes}/${apprequest.tribeid}/spacedev/${apprequest.website}/src/static/components/notification/data_notiflist_${apprequest.lang}.json`,
				"elapse": "il y a 13mn"
		    } ]
		};
	} else {
		notif = jsonfile.readFileSync( `${config.tribes}/${apprequest.tribeid}/spacedev/${apprequest.website}/src/static/components/notification/data_notiflist_${apprequest.lang}.json` );
		//clean up example notif
		notif.notifs = [];
	}
	//check notification for plugins of tribeid of the login
	glob.sync( `${config.tribes}/${tribeid}/plugins/*/Messages/global.json` )
	Object.keys( ACCESSRIGHTS.app )
		.forEach( a => {
			// check for each app if notification about app
			const appnot = `${config.tribes}/${a.split(':')[0]}/spacedev/${a.split(':')[1]}/Messages/global.json`;
			if( fs.existsSync( appnot ) ) {
				notif.notifs = notif.notifs.concat( fs.readJsonSync( appnot ) );
			}
		} );
	Object.keys( ACCESSRIGHTS.plugin )
		.forEach( p => {
			// each plugin
			if( ACCESSRIGHTS.plugin[ p ].profil == "owner" ) {
				const pluginnot = `${config.tribes}/${p.split(':')[0]}/plugins/${p.split(':')[1]}/Messages/global.json`;
				if( fs.existsSync( pluginnot ) ) {
					notif.notifs = notif.notifs.concat( fs.readJsonSync( pluginnot ) );
				}
			}
		} );
	Object.keys( ACCESSRIGHTS.data )
		.forEach( c => {
			// each tribeid
			Object.keys( ACCESSRIGHTS.data[ c ] )
				.forEach( o => {
					const cliobjnot = `${config.tribes}/${c}/${o}/Messages/global.json`
					//check for each tribeid / Object per accessright user
					if( fs.existsSync( cliobjnot ) ) {
						console.log( `droit sur client ${c} objet ${o} : ${ACCESSRIGHTS.data[ c ][ o ]}` );
						//check if intersection between user accessrigth for this object and the notification accessright is not empty @Todo replace true by intersec
						console.log( 'WARN no actif filter all notif are shared with any authenticated user' )
						const newnotif = fs.readJsonSync( cliobjnot )
							.filter( n => { return true } );
						notif.notifs = notif.notifs.concat( newnotif );
					}
				} )
		} )
	return {
		status: 200,
		data: {
			model: "Messages",
			info: [ 'successgetnotification' ],
			notif: notif
		}
	};
}


module.exports = Messages;