import WebSocket  = require('ws');
import MetaGrammarManifest from '../../src/org/subalternproductions/seepResource/dsl/serialize/MetaGrammarManifest';
import GrammarTestSuite from '../../src/org/subalternproductions/seepResource/dsl/testsuite/GrammarTestSuite';
import GrammarTest from '../../src/org/subalternproductions/seepResource/dsl/testsuite/GrammarTest';
import GrammarTestSrc from '../../src/org/subalternproductions/seepResource/dsl/testsuite/GrammarTestSrc';
import GrammarTestSuiteMgr from '../../src/org/subalternproductions/seepResource/dsl/testrunner/GrammarTestsuiteMgr';

import TESTS from  '../../test/minimal-testsuites'

import { ITypeManifest, ArchiveDeserializer, Assert } from '@cafetextual/util';
import SimpleTypeManifest from '@cafetextual/util/dist/src/manifest/SimpleTypeManifest';
import GrammarTestsuiteRunner from '../../test/testrunner/GrammarTestsuiteRunner';


import {saveFile , loadFile, serialize }  from './parse-ws-util'


var WebSocketServer = require('ws').Server



export default class ParserWsServer {

    constructor(port:number = 8007) {
        this.port = port;

        var archivePath:string = "/Users/ismcdonald/dev/seep2/seep/ex/SeasTestRunner/src/test/editable"
        var appPath:string = "/Users/ismcdonald/dev/seep2/seep/ex/SeasTestRunner/src/test"  
        
        // hardcoding archive location for the moment
        this.savePath = archivePath + "/_saved/"



    }
    
    port:number

    private savePath:string 
    private wss:any 


    private index:number = 0



    start() {
        var wss = new WebSocketServer({port:this.port});
        this.wss = wss


        wss.on('connection', function(ws:any) {
            var connectionName = "Cn#" + this.index.toString()
            this.index++
            var protocol:string = "unknown"
            if (typeof ws.protocol === "string") {
                protocol = ws.protocol as string
            }   
            
            this.setConnected(connectionName, ws, protocol)

            console.log(" new connection: " + connectionName +   " protocol: "  + protocol);
            
            ws.send(serialize("handshake", "Connected" ,""));

            
            ws.on('message', (message:string) => {
                
            // var type:string = message.type
                console.log("--- got message ") // message);
            // console.log(message)
                try {
                    var o:any = JSON.parse(message)
                    console.log('    parsed')
                } catch (e) {
                    console.log("    failed to parse json")
                    return
                }

                if (o && o.type) {  
                    console.log("    message of type:  " + o.type)
                    var msgType:string = o.type
                    var target:string = o.target ? o.target : "*"

                    
                    if (msgType == "pub") {
                        var channel:string = o.channel
                        this.log(" got pub " + channel + " on   protocol = " + protocol)
                        // for the moment, be publish to all channels
                        this.broadcast(connectionName, message, "*")


                        return
                    


                    } else if (msgType == "anyonic-actor") {
                        this.handleActorMsg(o)
                        return
                    
                    

                    
                    } else  if (msgType == "doc-request") {
                        this.traceAppData()
                        var data = this.getAppDataByTarget(protocol)

                        if (data) {
                            ws.send(data)
                        } else {
                            ws.send(serialize("error", "no data available for appID" + protocol, null))
                            this.log("  not sending app data to protocol: " + protocol) // if we had data for #protocol , could send it
                        }

                    } else if (msgType == "doc-script") {
                        this.log(" serialize script  from " + protocol)
                        this.broadcast(connectionName, message, "*")  // <--- scripts go everywhere, clients work out what to run
                    } else if (msgType == "script-status") {
                        console.log(" got script status")
                        this.broadcast(connectionName, message, "#debug")
                    } else if (msgType == "doc-serialization") {
                        var uri:string = o.data.topURI 
                        var appID:string = o.data.appID
                        if (appID) {
                            this.persistDataByTarget(o.data, appID, uri)
                            this.traceAppData()
                            this.broadcastToTestSubs(uri)
                            this.broadcast(connectionName, message, appID) // <-- TODO - target serializations
                            if (uri) {
                                console.log(" about to save: " + uri)
                                saveFile(uri, this.savePath, message)
                            }
                        }

                    } else if (msgType == "doc-increment") {
                        var appID:string = o.data.appID
                        if (appID) {
                            console.log(" got incremental update for appID: " + appID)
                            this.persistDataByTarget(null, protocol, uri)       // <--- delete any persisted data for this target as it's no longer value
                            this.broadcast(connectionName, message, appID)
                        } else {
                            this.log(" no appID from + " + protocol)
                        }
                    } else if (msgType == "dom") {
                        console.log(" got dom serialization")
                        this.broadcast(connectionName, message, "#debug")  // <-- only send  dom into to the debug client
                    } else if (msgType == "dom-request") {
                        console.log(" got dom request")
                        this.broadcast(connectionName, message, "*")  // <--- request dom from everything
                    } else if (msgType == "figure-channel") {
                        console.log(" got figure")
                    } else if (msgType == "error") {
                        console.log(" got error ")
                        this.broadcast(connectionName, message, "#debug")  // <--- request dom from everything

                    } else if (msgType == "test-sub") { 
                        var testURI:string = o.data.testURI;
                        
                        this.addSubscription(connectionName, testURI)
                        console.log(" recieved test subscription " + testURI )

                        this.broadcastToTestSubs( testURI)


                    } else {
                        ws.send(serialize("error", " unknown msgType : " + msgType, null))
                    }   


                }

                
            // ws.send(serialize("echo", "connected", ""))
                
                this.traceConnections(connectionName);
            
                
            })
            
            
            ws.on('close', function close() {
                console.log('disconnected');
                this.removeConnection(connectionName)
            }); 
            
            
            
            

            ws.on('open', function open() {
                console.log('opening');
                ws.send(Date.now().toString(), {mask: true});
            });
        })

    } // start



    private allConnections:{[name:string]:{ ws:any, protocol:string, subs?:Array<any> }} = {}   
    private appDataByTarget:{[targetID:string]:any} = {}
    private appDataByURI:{[uri:string]:any} = {}

    setConnected(name:string, ws:any, protocol:string) {
       this.allConnections[name] =  {ws:ws, protocol:protocol}
    }

    removeConnection(name:string) {
        console.log("removeing connection " + name)
    
        delete this.allConnections[name]

        this.traceConnections(name)
    }

    traceConnections(current:string) {
        this.log(" ------- all current connections -----")
        for (var key in this.allConnections) {
            var isCurrent = (key == current) ? " <--- current " : ""
            var {ws, protocol} = this.allConnections[key]
            this.log("c: " + key + " (connected) " + isCurrent  + "protocol: " + protocol) 
      }
    }


    log = (v:string) => { console.log(v) }
    
    
    traceAppData() {
        this.log(" ---- all currently registered app data ----")
        for (var key in this.appDataByTarget) {
            var data = this.appDataByTarget[key] 
            this.log("    " + key  +    "    size: " + data.length) 

        }
        this.log(" -------------------------------------------")
    }

    getAppDataByTarget(appID:string) {
        return this.appDataByTarget[appID]
    }


    persistDataByTarget(data:any, appID:string, uri:string):void {
        this.appDataByTarget[appID] = data
        if (uri) {
            this.appDataByURI[uri] = data;
        }
    }


    /**
     * @param source name (uid) of source,to ensure message isn't broadcast back to self
     * @param msg  data to broadcase
     * @param target name of target protocol
     */
    broadcast(source:string, msg:string, target:string) {
        var noTarget:Boolean =  !target || target == '*'
        for (var name in this.allConnections) {
            if (name != source) {
                var {ws, protocol} = this.allConnections[name]
                if (noTarget || target == protocol) {
                    ws.send(msg)
                }
            }
        }
    }


    broadcastToTestSubs(  testURI:string) {
        var data =  this.appDataByURI[testURI]

        if (!data) {
            // could attempt to load from disk here
            data =  loadFile(testURI, this.savePath)
            if (!data) {
                console.log('ATTN: no data for testURI ' + testURI)
            // {data:[ ].    }  // when loaded, doesn't have 
                return;
            }
            data = data.data
        } else {
            //data = data.data;
            console.log('x')
        }

        var connectionName:string 
        for (connectionName in this.allConnections) {
            let { ws, subs } = this.allConnections[connectionName];
          
            if (subs) {
                if (testURI in subs) {
                    ws.send(serialize("test-sub",  "test data for uri=" + testURI, data))
                }
            }

        }
        
    }
 
}