seatplan saving and loading for admin & user

src/server/admin/adminAPIRoutes.js

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+/*
+*				libreevent - adminAPIRoutes.js
+*
+*	Created by Janis Hutz 07/20/2023, Licensed under the GPL V3 License
+*			https://janishutz.com, development@janishutz.com
+*
+*
+*/
+
+const posth = require( './api/postHandler.js' );
+const geth = require( './api/getHandler.js' );
+const postHandler = new posth();
+const getHandler = new geth();
+const path = require( 'path' );
+
+// settings is missing in arguments which shouldn't pose any problem
+module.exports = ( app ) => {
+    // Add specific routes here to have them be checked first to not get general handling
+
+    app.get( '/admin/getAPI/:call', ( req, res ) => {
+        if ( req.session.loggedInAdmin ) {
+            getHandler.handleCall( req.params.call, req.query ).then( data => {
+                res.send( data );
+            } ).catch( error => {
+                res.status( 500 ).send( error );
+            } );
+        } else {
+            res.status( 403 ).sendFile( path.join( __dirname + '/../ui/' + ( req.query.lang ?? 'en' ) + '/errors/403.html' ) );
+        }
+    } );
+
+    app.post( '/admin/API/:call', ( req, res ) => {
+        if ( req.session.loggedInAdmin ) {
+            postHandler.handleCall( req.params.call, req.body, req.query.lang ).then( data => {
+                res.send( data );
+            } ).catch( error => {
+                res.status( 500 ).send( error );
+            } );
+        } else {
+            res.status( 403 ).sendFile( path.join( __dirname + '/../ui/' + ( req.query.lang ?? 'en' ) + '/errors/403.html' ) );
+        }
+    } );
+};

src/server/admin/api/getHandler.js

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+/*
+*				libreevent - getHandler.js
+*
+*	Created by Janis Hutz 07/20/2023, Licensed under the GPL V3 License
+*			https://janishutz.com, development@janishutz.com
+*
+*
+*/
+
+const db = require( '../../backend/db/db.js' );
+
+class GETHandler {
+    constructor () {
+
+    }
+
+    handleCall ( call, query ) {
+        return new Promise( ( resolve, reject ) => {
+            if ( call === 'getSeatplan' ) {
+                db.getJSONDataSimple( 'seatplan', query.location ).then( data => {
+                    if ( Object.keys( data ).length > 0 ) {
+                        resolve( data[ 'save' ] );
+                    } else {
+                        reject( 'No data found for this location' );
+                    }
+                } ).catch( error => {
+                    reject( error );
+                } );
+            } else if ( call === 'getSeatplanDraft' ) {
+                db.getJSONDataSimple( 'seatplan', query.location ).then( data => {
+                    if ( Object.keys( data ).length > 0 ) {
+                        if ( Object.keys( data[ 'draft' ] ).length > 0 ) {
+                            resolve( data[ 'draft' ] );
+                        } else {
+                            resolve( data[ 'save' ] );
+                        }
+                    } else {
+                        reject( 'No data found for this location' );
+                    }
+                } ).catch( error => {
+                    reject( error );
+                } );
+            }
+        } );
+    }
+}
+
+module.exports = GETHandler;

src/server/admin/api/postHandler.js

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+/*
+*				libreevent - postHandler.js
+*
+*	Created by Janis Hutz 07/20/2023, Licensed under the GPL V3 License
+*			https://janishutz.com, development@janishutz.com
+*
+*
+*/
+
+const db = require( '../../backend/db/db.js' );
+
+class POSTHandler {
+    constructor () {
+
+    }
+
+    handleCall ( call, data, lang ) {
+        return new Promise( ( resolve, reject ) => {
+            console.log( lang );
+            if ( call === 'saveSeatplanDraft' ) {
+                db.getJSONDataSimple( 'seatplan', data.location ).then( res => {
+                    let dat = res;
+                    dat[ 'draft' ] = data.data;
+                    db.writeJSONDataSimple( 'seatplan', data.location, dat ).then( resp => { 
+                        resolve( resp );
+                    } ).catch( error => {
+                        reject( error );
+                    } );
+                } );
+            } else if ( call === 'saveSeatplan' ) {
+                db.writeJSONDataSimple( 'seatplan', data.location, { 'draft': {}, 'save': data.data } ).then( resp => { 
+                    resolve( resp );
+                } ).catch( error => {
+                    reject( error );
+                } );
+            }
+        } );
+    }
+}
+
+module.exports = POSTHandler;