export const methods = {

    /* Request payload : null
       Reply:
        {
            "action": "GETACTIVEUSERS",
            "payload": [
                {
                    "uid": "steinic",
                    "email": "Nicolas.STEIN@ext.ec.europa.eu",
                    "given_name": "Nicolas",
                    "family_name": "STEIN",
                    "userRoles": [
                        "BP_PO",
                        "SP_Admin",
                        "Org_Member",
                        "Org_Pending",
                        "EIC_Dev"
                    ],
                    "sessionExpire": 3594,
                    "busConnected": true
                }
            ],
            "success": true,
            "reqid": "df58a401-4ed2-4908-a2b1-8bae155e413a"
        }
    */
    async action_GETACTIVEUSERS(action, payload, reqid){
        if(!this.accessRights.canDo(this.roles, 'getActiveUsers')) {
            this.sendErr(action, 'Unauthorized action !', reqid);
            return
        }

//TODO: take from new config  key instead of hardcded     
        const iterOptions = {
            TYPE: 'string', 
            MATCH: 'authorizer:sessid_*'
        }
    
        let activeUsers = []
        for await (const key of this.rediscnx.redisClient.scanIterator(iterOptions)) {
            let sess = null
            try{ sess = JSON.parse(await this.rediscnx.redisGet(key, '')) }
            catch(err) { console.log('bad sess info')}
            if((!sess) || (!sess.isAuthenticated) || (!sess.sessionID)
                || (!sess.userInfo) || (!sess.userInfo.userRoles) || (!sess.userInfo.euLoginId)){
                    continue
            } 
 
            let ttl = await this.rediscnx.redisGetTtl(key, '')
            activeUsers.push({
                uid: sess.userInfo.euLoginId,
                email: sess.userInfo.email,
                given_name: sess.userInfo.given_name,
                family_name: sess.userInfo.family_name,
                userRoles: sess.userInfo.userRoles,
                sessionExpire: ttl,
                busConnected: this.wssSrv.sessionConnected(sess.sessionID),
            })
        }
        var reply = {
            'action': action,
            'payload': activeUsers,
            'success': true,
        };
        if(reqid) reply.reqid = reqid;
        this.send(JSON.stringify(reply));
    },    
    /*
    *   payload: {
            uids: [ 'fallimi' ],
            notRoles : ['EIC_ADMIN', 'EIC_Dev' ],
            ttl: 0
        } 
        => Both conditions must be met (here nothing gets done as fallimi is EIC_Dev)

        Any uid, but not some roles :
        {
            uids: null,
            notRoles : ['EIC_ADMIN', 'EIC_Dev' ],
            ttl: 0
        } 

        Some uids, don't care their roles in 30 seconds :
        {
            uids: [ 'infosca', 'nz01234' ],
            notRoles : [],
            ttl: 30
        } 

    */


    /* Request payload : { "uid":"steinni" }
       Reply:
        {
            "action": "GETUSERSTATUS",
            "payload": 
                {
                    "uid": "steinic",
                    "email": "Nicolas.STEIN@ext.ec.europa.eu",
                    "given_name": "Nicolas",
                    "family_name": "STEIN",
                    "sessionExpire": 3594,
                    "busConnected": true
                },
            "success": true,
            "reqid": "df58a401-4ed2-4908-a2b1-8bae155e413a"
        }
    */
    async action_GETUSERSTATUS(action, payload, reqid){
        if(!this.accessRights.canDo(this.roles, 'getUserStatus')) {
            this.sendErr(action, 'Unauthorized action !', reqid);
            return
        }

        const iterOptions = {
            TYPE: 'string', 
            MATCH: 'authorizer:sessid_*'
        }
    
        let user = {
            uid: payload.uid,
            email: null,
            given_name: null,
            family_name: null,
            sessionExpire: null,
            busConnected: null,
        }

        for await (const key of this.rediscnx.redisClient.scanIterator(iterOptions)) {   
            let sess = null
            try{ sess = JSON.parse(await this.rediscnx.redisGet(key, '')) }
            catch(err) { console.log('bad sess info')}
            
            if((!sess) || (!sess.isAuthenticated) || (!sess.sessionID)
                || (!sess.userInfo) || (!sess.userInfo.userRoles) || (!sess.userInfo.euLoginId)
                || (sess.userInfo.euLoginId != payload.uid)
            ) { 
                continue 
            } else  {
                let ttl = await this.rediscnx.redisGetTtl(key, '')
                user={
                    uid: sess.userInfo.euLoginId,
                    email: sess.userInfo.email,
                    given_name: sess.userInfo.given_name,
                    family_name: sess.userInfo.family_name,
                    sessionExpire: ttl,
                    busConnected: this.wssSrv.sessionConnected(sess.sessionID),
                }
                break
            }            
        }
        
        var reply = {
            'action': action,
            'payload': user,
            'success': true,
        };
        if(reqid) reply.reqid = reqid;
        this.send(JSON.stringify(reply)); 
    },

    async action_KILLSESSION(action, payload, reqid){
        if(!this.accessRights.canDo(this.roles, 'killSessions')) {
            this.sendErr(action, 'Unauthorized action !', reqid);
            return
        }
        if( (!payload.notRoles) || (!Array.isArray(payload.notRoles)) || (payload.uids && (!Array.isArray(payload.uids))) ){
            this.sendErr(action, 'Bad payload !', reqid);
            return
        }



//TODO: take from new config  key instead of hardcded        
        const iterOptions = {
            TYPE: 'string', 
            MATCH: 'authorizer:sessid_*'
        }

        for await (const key of this.rediscnx.redisClient.scanIterator(iterOptions)) {
            if(key.endsWith('_cookie')) continue
            let sess = null
            try{ sess = JSON.parse(await this.rediscnx.redisGet(key, '')) }
            catch(err) { console.log('bad sess info')}
            if((!sess) || (!sess.isAuthenticated)) continue
    
            if(payload.uids && (payload.uids.indexOf(sess.userInfo['euLoginId'])<0)) continue
            let intersect = payload.notRoles.filter(value => sess.userInfo.userRoles.includes(value));
            if(intersect.length>0) continue

            if((!payload.ttl) || (typeof(payload.ttl)!= number) || (payload.ttl<0) || (payload.ttl>3600)) payload.ttl=0
            let ttl = await this.rediscnx.redisSetTtl(key, payload.ttl, '')

        }
        var reply = {
            'action': action,
            'success': true,
        };
        if(reqid) reply.reqid = reqid;
        this.send(JSON.stringify(reply));
    },

    /*  Request: (curtain down, except for devs & admins)
        {
            "action": "SETSPARCSTATE",
            "payload" : {
                blockedUids: [],
                allowedRoles : ['EIC_Admin', 'EIC_Dev'],
            },            
        }

        Request: (curtain up, for everyone)
        {
            "action": "SETSPARCSTATE",
            "payload" : {
                blockedUids: [],
                allowedRoles : '*',
            },            
        }

        Request: (curtain up, block some bad-guys)
        {
            "action": "SETSPARCSTATE",
            "payload" : {
                blockedUids: ['hacker1', 'hacker2'],
                allowedRoles : '*',
            },            
        }

        Reply:
        {
            "success": true,
            "reqid": "6az5e4r6a",
            "payload": { the accessrights }
        }
    */
    async action_SETPLATFORMMODE(action, payload, reqid){
        if(!this.accessRights.canDo(this.roles, 'setPlatformState')) {
            this.sendErr(action, 'Unauthorized action !', reqid);
            return
        }
        if((typeof(payload)!='object') || (!Array.isArray(payload.blockedUUIDs)) ||
           ( (typeof(payload.platformRestrictions)=='object') && (!Array.isArray(payload.platformRestrictions.allowedRoles)) ) 
           ){
            this.sendErr(action, 'Invalid payload', reqid)
            return
        }

        if(typeof(payload.platformRestrictions)=='object'){ // curtain down
            if(!payload.platformRestrictions.allowedRoles.includes('EIC_Dev')){ // anti-shoot-your-foot
                payload.platformRestrictions.allowedRoles.push('EIC_Dev')
            } 
        } else { // curtain up
            //force-in an example 
            payload.XX_platformRestrictions = { "allowedRoles":["EIC_Admin","EIC_Dev"],"allowedUUIDs":["valentin"] }
        } 



        await this.rediscnx.redisSet(this.config.redis.platformStateKey, 
                                    payload, 
                                    0, 
                                    ''
                                )

        var reply = {
            'action': action,
            'success': true
        };
        if(reqid) reply.reqid = reqid;
        this.send(JSON.stringify(reply));
    },


    /*  Request:
        {
            "action": "GETSPARCMODE"
            "payload": {
                "key": "keyname"
            }
            "reqid": "6az5e4r6a"
        }
        Reply:
        {
            "action":"STORE",
            "success":true,
            "payload": {
                ...the sparc mode
            }
            "reqid": reqid
        }
    */
    async action_GETPLATFORMMODE(action, payload, reqid){
        if(!this.accessRights.canDo(this.roles, 'getPlatformState')) {
            this.sendErr(action, 'Unauthorized action !', reqid);
            return
        }
        
        let rawVal = await this.rediscnx.redisGet(this.config.redis.platformStateKey, '')     
        let val = null
        try { val = JSON.parse(rawVal)}
        catch(err) { console.error('Action GETSPARCMODE: Not a json !? ', rawVal) }    

        var reply = {
            'action': action,
            'payload':  val,
            'success': true,
        };
        if(reqid) reply.reqid = reqid;
        this.send(JSON.stringify(reply));
    }


}