Got basic queries in result table working.

client/src/components/Window.tsx

@@ -1,9 +1,10 @@
-import React, { useState } from 'react';
+import React, { useState, useEffect } from 'react';
-import { ThemeProvider, CssBaseline, createMuiTheme } from '@material-ui/core';
+import { ThemeProvider, CssBaseline, createMuiTheme, AppBar, Box } from '@material-ui/core';
-import { QueryElem } from '../lib/query/Query';
+import { QueryElem, toApiQuery } from '../lib/query/Query';
 import QueryBuilder from './querybuilder/QueryBuilder';
 import * as serverApi from '../api';
-import { queryAllByRole } from '@testing-library/react';
+import { SongTable } from './tables/ResultsTable';
+var _ = require('lodash');
 
 const darkTheme = createMuiTheme({
     palette: {
@@ -82,10 +83,76 @@ export async function getSongTitles(filter: string) {
 }
 
 export default function Window(props: any) {
+    interface ResultsFor {
+        for: QueryElem,
+        results: any[],
+    };
+
     const [query, setQuery] = useState<QueryElem | null>(null);
+    const [resultsFor, setResultsFor] = useState<ResultsFor | null>(null);
+
+    const loading = query && (!resultsFor || !_.isEqual(resultsFor.for, query));
+    const showResults = (query && resultsFor && query == resultsFor.for) ? resultsFor.results : [];
+
+    const songGetters = {
+        getTitle: (song: any) => song.title,
+        getArtist: (song: any) => "Artist",
+        getAlbum: (song: any) => "Album",
+    }
+
+    const doQuery = async (_query: QueryElem) => {    
+        var q: serverApi.QueryRequest = {
+            query: toApiQuery(_query),
+            offsetsLimits: {
+                songOffset: 0,
+                songLimit: 100,
+            },
+            ordering: {
+                orderBy: {
+                    type: serverApi.OrderByType.Name,
+                },
+                ascending: true,
+            },
+        };
+    
+        const requestOpts = {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify(q),
+        };
+    
+        return (async () => {
+            const response = await fetch((process.env.REACT_APP_BACKEND || "") + serverApi.QueryEndpoint, requestOpts)
+            let json: any = await response.json();
+            if(_.isEqual(query, _query)) {
+                setResultsFor({
+                    for: _query,
+                    results: json.songs,
+                })
+            }
+        })();
+    }
+
+    useEffect(() => {
+        if (query) {
+            doQuery(query);
+        } else {
+            setResultsFor(null);
+        }
+    }, [query]);
 
     return <ThemeProvider theme={darkTheme}>
         <CssBaseline />
+        <AppBar position="static" style={{ background: 'grey' }}>
+            <Box m={0.5} display="flex" alignItems="center">
+                <img height="30px" src={process.env.PUBLIC_URL + "/logo.svg"} alt="error"></img>
+            </Box>
+        </AppBar>
+        <Box width="100%" justifyContent="center" display="flex" flexWrap="wrap">
+            <Box
+                m={1}
+                width="80%"
+            >
                 <QueryBuilder
                     query={query}
                     onChangeQuery={setQuery}
@@ -94,5 +161,17 @@ export default function Window(props: any) {
                         getSongTitles: getSongTitles,
                     }}
                 />
+            </Box>
+            <Box
+                m={1}
+                width="80%"
+            >
+                <SongTable
+                    songs={showResults}
+                    songGetters={songGetters}
+                />
+            </Box>
+        </Box>
+
     </ThemeProvider>
 }

client/src/components/querybuilder/QBLeafElem.tsx

@@ -2,7 +2,7 @@ import React from 'react';
 import { QueryLeafElem, QueryLeafBy, QueryLeafOp, QueryElem } from '../../lib/query/Query';
 import { Chip, Typography, IconButton, Box } from '@material-ui/core';
 import { QBPlaceholder } from './QBPlaceholder';
-import CloseIcon from '@material-ui/icons/Close';
+import DeleteIcon from '@material-ui/icons/Delete';
 import { Requests } from './QueryBuilder';
 
 export interface ElemChipProps {
@@ -56,8 +56,12 @@ export interface DeleteButtonProps {
 }
 
 export function QBQueryElemDeleteButton(props: DeleteButtonProps) {
-    return <IconButton onClick={props.onClick} size="small">
+    return <IconButton
-        <CloseIcon />
+        onClick={props.onClick}
+        disableRipple={true}
+        size="small"
+    >
+        <DeleteIcon />
     </IconButton>
 }
 
@@ -72,9 +76,11 @@ export function QBLeafElem(props: IProps) {
     let e = props.elem;
 
     const extraElements = props.editingQuery ?
+        <Box m={0.5}>
             <QBQueryElemDeleteButton
                 onClick={() => props.onReplace(null)}
             />
+        </Box>
         : undefined;
 
     if (e.a == QueryLeafBy.ArtistName &&

client/src/components/tables/ResultsTable.tsx

@@ -0,0 +1,49 @@
+import React from 'react';
+import { TableContainer, Table, TableHead, TableRow, TableCell, Paper, makeStyles, TableBody } from '@material-ui/core';
+
+export interface SongGetters {
+    getTitle: (song: any) => string,
+    getArtist: (song: any) => string,
+    getAlbum: (song: any) => string,
+}
+
+export interface IProps {
+    songs: any[],
+    songGetters: SongGetters,
+}
+
+export function SongTable(props: IProps) {
+    const useTableStyles = makeStyles({
+        table: {
+            minWidth: 650,
+        },
+    });
+    const classes = useTableStyles();
+
+    return (
+        <TableContainer component={Paper}>
+            <Table className={classes.table} aria-label="a dense table">
+                <TableHead>
+                    <TableRow>
+                        <TableCell align="left">Title</TableCell>
+                        <TableCell align="left">Artist</TableCell>
+                        <TableCell align="left">Album</TableCell>
+                    </TableRow>
+                </TableHead>
+                <TableBody>
+                    {props.songs.map((song:any) => {
+                        const title = props.songGetters.getTitle(song);
+                        const artist = props.songGetters.getArtist(song);
+                        const album = props.songGetters.getAlbum(song);
+
+                        return <TableRow key={title}>
+                            <TableCell align="left">{title}</TableCell>
+                            <TableCell align="left">{artist}</TableCell>
+                            <TableCell align="left">{album}</TableCell>
+                        </TableRow>
+                    })}
+                </TableBody>
+            </Table>
+        </TableContainer>
+    );
+}

client/src/lib/query/Query.tsx

@@ -1,3 +1,5 @@
+import * as serverApi from '../../api';
+
 export enum QueryLeafBy {
     ArtistName = 0,
     AlbumName,
@@ -150,3 +152,35 @@ export function simplify(q: QueryElem | null): QueryElem | null {
 
     return q;
 }
+
+export function toApiQuery(q: QueryElem) : serverApi.Query {
+    const propsMapping: any = {
+        [QueryLeafBy.SongTitle]: serverApi.QueryElemProperty.songTitle,
+        [QueryLeafBy.ArtistName]: serverApi.QueryElemProperty.artistName,
+    }
+    const leafOpsMapping: any = {
+        [QueryLeafOp.Equals]: serverApi.QueryFilterOp.Eq,
+        [QueryLeafOp.Like]: serverApi.QueryFilterOp.Like,
+    }
+    const nodeOpsMapping: any = {
+        [QueryNodeOp.And]: serverApi.QueryElemOp.And,
+        [QueryNodeOp.Or]: serverApi.QueryElemOp.Or,
+    }
+    
+    if(isLeafElem(q)) {
+        const r: serverApi.QueryElem = {
+            prop: propsMapping[q.a],
+            propOperator: leafOpsMapping[q.leafOp],
+            propOperand: q.b,
+        }
+        return r;
+    } else if(isNodeElem(q)) {
+        const r = {
+            children: q.operands.map((op: any) => toApiQuery(op)),
+            childrenOperator: nodeOpsMapping[q.nodeOp]
+        }
+        return r;
+    }
+
+    return {};
+}