1 files changed, 315 insertions, 0 deletions
diff --git a/webui/src/pages/list/ListQuery.tsx b/webui/src/pages/list/ListQuery.tsx
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+++ b/webui/src/pages/list/ListQuery.tsx
@@ -0,0 +1,315 @@
+import { ApolloError } from 'apollo-boost';
+import React, { useState, useEffect, useRef } from 'react';
+import { useLocation, useHistory, Link } from 'react-router-dom';
+
+import IconButton from '@material-ui/core/IconButton';
+import InputBase from '@material-ui/core/InputBase';
+import Paper from '@material-ui/core/Paper';
+import { fade, makeStyles, Theme } from '@material-ui/core/styles';
+import ErrorOutline from '@material-ui/icons/ErrorOutline';
+import KeyboardArrowLeft from '@material-ui/icons/KeyboardArrowLeft';
+import KeyboardArrowRight from '@material-ui/icons/KeyboardArrowRight';
+import Skeleton from '@material-ui/lab/Skeleton';
+
+import FilterToolbar from './FilterToolbar';
+import List from './List';
+import { useListBugsQuery } from './ListQuery.generated';
+
+type StylesProps = { searching?: boolean };
+const useStyles = makeStyles<Theme, StylesProps>(theme => ({
+  main: {
+    maxWidth: 800,
+    margin: 'auto',
+    marginTop: theme.spacing(4),
+    marginBottom: theme.spacing(4),
+    overflow: 'hidden',
+  },
+  pagination: {
+    ...theme.typography.overline,
+    display: 'flex',
+    alignItems: 'center',
+    justifyContent: 'center',
+  },
+  header: {
+    display: 'flex',
+    padding: theme.spacing(2),
+    '& > h1': {
+      ...theme.typography.h6,
+      margin: theme.spacing(0, 2),
+    },
+    alignItems: 'center',
+    justifyContent: 'space-between',
+  },
+  search: {
+    borderRadius: theme.shape.borderRadius,
+    borderColor: fade(theme.palette.primary.main, 0.2),
+    borderStyle: 'solid',
+    borderWidth: '1px',
+    backgroundColor: fade(theme.palette.primary.main, 0.05),
+    padding: theme.spacing(0, 1),
+    width: ({ searching }) => (searching ? '20rem' : '15rem'),
+    transition: theme.transitions.create([
+      'width',
+      'borderColor',
+      'backgroundColor',
+    ]),
+  },
+  searchFocused: {
+    borderColor: fade(theme.palette.primary.main, 0.4),
+    backgroundColor: theme.palette.background.paper,
+    width: '20rem!important',
+  },
+  placeholderRow: {
+    padding: theme.spacing(1),
+    borderBottomColor: theme.palette.grey['300'],
+    borderBottomWidth: '1px',
+    borderBottomStyle: 'solid',
+    display: 'flex',
+    alignItems: 'center',
+  },
+  placeholderRowStatus: {
+    margin: theme.spacing(1, 2),
+  },
+  placeholderRowText: {
+    flex: 1,
+  },
+  message: {
+    ...theme.typography.h5,
+    padding: theme.spacing(8),
+    textAlign: 'center',
+    borderBottomColor: theme.palette.grey['300'],
+    borderBottomWidth: '1px',
+    borderBottomStyle: 'solid',
+    '& > p': {
+      margin: '0',
+    },
+  },
+  errorBox: {
+    color: theme.palette.error.main,
+    '& > pre': {
+      fontSize: '1rem',
+      textAlign: 'left',
+      backgroundColor: theme.palette.grey['900'],
+      color: theme.palette.common.white,
+      marginTop: theme.spacing(4),
+      padding: theme.spacing(2, 3),
+    },
+  },
+}));
+
+function editParams(
+  params: URLSearchParams,
+  callback: (params: URLSearchParams) => void
+) {
+  const cloned = new URLSearchParams(params.toString());
+  callback(cloned);
+  return cloned;
+}
+
+// TODO: factor this out
+type PlaceholderProps = { count: number };
+const Placeholder: React.FC<PlaceholderProps> = ({
+  count,
+}: PlaceholderProps) => {
+  const classes = useStyles({});
+  return (
+    <>
+      {new Array(count).fill(null).map((_, i) => (
+        <div key={i} className={classes.placeholderRow}>
+          <Skeleton
+            className={classes.placeholderRowStatus}
+            variant="circle"
+            width={20}
+            height={20}
+          />
+          <div className={classes.placeholderRowText}>
+            <Skeleton height={22} />
+            <Skeleton height={24} width="60%" />
+          </div>
+        </div>
+      ))}
+    </>
+  );
+};
+
+// TODO: factor this out
+const NoBug = () => {
+  const classes = useStyles({});
+  return (
+    <div className={classes.message}>
+      <ErrorOutline fontSize="large" />
+      <p>No results matched your search.</p>
+    </div>
+  );
+};
+
+type ErrorProps = { error: ApolloError };
+const Error: React.FC<ErrorProps> = ({ error }: ErrorProps) => {
+  const classes = useStyles({});
+  return (
+    <div className={[classes.errorBox, classes.message].join(' ')}>
+      <ErrorOutline fontSize="large" />
+      <p>There was an error while fetching bug.</p>
+      <p>
+        <em>{error.message}</em>
+      </p>
+      <pre>
+        <code>{JSON.stringify(error, null, 2)}</code>
+      </pre>
+    </div>
+  );
+};
+
+function ListQuery() {
+  const location = useLocation();
+  const history = useHistory();
+  const params = new URLSearchParams(location.search);
+  const query = params.has('q') ? params.get('q') || '' : 'status:open';
+
+  const [input, setInput] = useState(query);
+
+  const classes = useStyles({ searching: !!input });
+
+  // TODO is this the right way to do it?
+  const lastQuery = useRef<string | null>(null);
+  useEffect(() => {
+    if (query !== lastQuery.current) {
+      setInput(query);
+    }
+    lastQuery.current = query;
+  }, [query, input, lastQuery]);
+
+  const num = (param: string | null) => (param ? parseInt(param) : null);
+  const page = {
+    first: num(params.get('first')),
+    last: num(params.get('last')),
+    after: params.get('after'),
+    before: params.get('before'),
+  };
+
+  // If nothing set, show the first 10 items
+  if (!page.first && !page.last) {
+    page.first = 10;
+  }
+
+  const perPage = (page.first || page.last || 10).toString();
+
+  const { loading, error, data } = useListBugsQuery({
+    variables: {
+      ...page,
+      query,
+    },
+  });
+
+  let nextPage = null;
+  let previousPage = null;
+  let count = 0;
+  if (!loading && !error && data?.repository?.bugs) {
+    const bugs = data.repository.bugs;
+    count = bugs.totalCount;
+    // This computes the URL for the next page
+    if (bugs.pageInfo.hasNextPage) {
+      nextPage = {
+        ...location,
+        search: editParams(params, p => {
+          p.delete('last');
+          p.delete('before');
+          p.set('first', perPage);
+          p.set('after', bugs.pageInfo.endCursor);
+        }).toString(),
+      };
+    }
+    // and this for the previous page
+    if (bugs.pageInfo.hasPreviousPage) {
+      previousPage = {
+        ...location,
+        search: editParams(params, p => {
+          p.delete('first');
+          p.delete('after');
+          p.set('last', perPage);
+          p.set('before', bugs.pageInfo.startCursor);
+        }).toString(),
+      };
+    }
+  }
+
+  // Prepare params without paging for editing filters
+  const paramsWithoutPaging = editParams(params, p => {
+    p.delete('first');
+    p.delete('last');
+    p.delete('before');
+    p.delete('after');
+  });
+  // Returns a new location with the `q` param edited
+  const queryLocation = (query: string) => ({
+    ...location,
+    search: editParams(paramsWithoutPaging, p => p.set('q', query)).toString(),
+  });
+
+  let content;
+  if (loading) {
+    content = <Placeholder count={10} />;
+  } else if (error) {
+    content = <Error error={error} />;
+  } else if (data?.repository) {
+    const bugs = data.repository.bugs;
+
+    if (bugs.totalCount === 0) {
+      content = <NoBug />;
+    } else {
+      content = <List bugs={bugs} />;
+    }
+  }
+
+  const formSubmit = (e: React.FormEvent) => {
+    e.preventDefault();
+    history.push(queryLocation(input));
+  };
+
+  return (
+    <Paper className={classes.main}>
+      <header className={classes.header}>
+        <h1>Issues</h1>
+        <form onSubmit={formSubmit}>
+          <InputBase
+            placeholder="Filter"
+            value={input}
+            onInput={(e: any) => setInput(e.target.value)}
+            classes={{
+              root: classes.search,
+              focused: classes.searchFocused,
+            }}
+          />
+          <button type="submit" hidden>
+            Search
+          </button>
+        </form>
+      </header>
+      <FilterToolbar query={query} queryLocation={queryLocation} />
+      {content}
+      <div className={classes.pagination}>
+        {previousPage ? (
+          <IconButton component={Link} to={previousPage}>
+            <KeyboardArrowLeft />
+          </IconButton>
+        ) : (
+          <IconButton disabled>
+            <KeyboardArrowLeft />
+          </IconButton>
+        )}
+        <div>{loading ? 'Loading' : `Total: ${count}`}</div>
+        {nextPage ? (
+          <IconButton component={Link} to={nextPage}>
+            <KeyboardArrowRight />
+          </IconButton>
+        ) : (
+          <IconButton disabled>
+            <KeyboardArrowRight />
+          </IconButton>
+        )}
+      </div>
+    </Paper>
+  );
+}
+
+export default ListQuery;