1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
import { useEffect, useState } from 'react';
import { useParams, useSearchParams } from 'react-router-dom';
import type { Item } from '../types';
import FeedItem from './FeedItem';
import './FeedItems.css';
export default function FeedItems() {
const { feedId, tagName } = useParams<{ feedId: string; tagName: string }>();
const [searchParams] = useSearchParams();
const filterFn = searchParams.get('filter') || 'unread';
const [items, setItems] = useState<Item[]>([]);
const [loading, setLoading] = useState(true);
const [loadingMore, setLoadingMore] = useState(false);
const [hasMore, setHasMore] = useState(true);
const [error, setError] = useState('');
const fetchItems = (maxId?: string) => {
if (maxId) {
setLoadingMore(true);
} else {
setLoading(true);
setItems([]);
}
setError('');
let url = '/api/stream';
const params = new URLSearchParams();
if (feedId) {
params.append('feed_id', feedId);
} else if (tagName) {
params.append('tag', tagName);
}
if (maxId) {
params.append('max_id', maxId);
}
// Apply filters
const searchQuery = searchParams.get('q');
if (searchQuery) {
params.append('q', searchQuery);
}
if (filterFn === 'all') {
params.append('read_filter', 'all');
} else if (filterFn === 'starred') {
params.append('starred', 'true');
params.append('read_filter', 'all');
} else {
// default to unread
if (!searchQuery) {
params.append('read_filter', 'unread');
}
}
const queryString = params.toString();
if (queryString) {
url += `?${queryString}`;
}
fetch(url)
.then((res) => {
if (!res.ok) {
throw new Error('Failed to fetch items');
}
return res.json();
})
.then((data) => {
if (maxId) {
setItems((prev) => [...prev, ...data]);
} else {
setItems(data);
}
setHasMore(data.length > 0);
setLoading(false);
setLoadingMore(false);
})
.catch((err) => {
setError(err.message);
setLoading(false);
setLoadingMore(false);
});
};
useEffect(() => {
fetchItems();
setSelectedIndex(-1);
}, [feedId, tagName, filterFn, searchParams]);
const [selectedIndex, setSelectedIndex] = useState(-1);
useEffect(() => {
const handleKeyDown = (e: KeyboardEvent) => {
if (items.length === 0) return;
if (e.key === 'j') {
setSelectedIndex((prev) => {
const nextIndex = Math.min(prev + 1, items.length - 1);
if (nextIndex !== prev) {
const item = items[nextIndex];
if (!item.read) {
markAsRead(item);
}
scrollToItem(nextIndex);
}
return nextIndex;
});
} else if (e.key === 'k') {
setSelectedIndex((prev) => {
const nextIndex = Math.max(prev - 1, 0);
if (nextIndex !== prev) {
scrollToItem(nextIndex);
}
return nextIndex;
});
} else if (e.key === 's') {
setSelectedIndex((currentIndex) => {
if (currentIndex >= 0 && currentIndex < items.length) {
toggleStar(items[currentIndex]);
}
return currentIndex;
});
}
};
window.addEventListener('keydown', handleKeyDown);
return () => window.removeEventListener('keydown', handleKeyDown);
}, [items]);
const scrollToItem = (index: number) => {
const element = document.getElementById(`item-${index}`);
if (element) {
element.scrollIntoView({ behavior: 'auto', block: 'start' });
}
};
const markAsRead = (item: Item) => {
const updatedItem = { ...item, read: true };
// Optimistic update
setItems((prevItems) => prevItems.map((i) => (i._id === item._id ? updatedItem : i)));
fetch(`/api/item/${item._id}`, {
method: 'PUT',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ read: true, starred: item.starred }),
}).catch((err) => console.error('Failed to mark read', err));
};
const toggleStar = (item: Item) => {
const updatedItem = { ...item, starred: !item.starred };
// Optimistic update
setItems((prevItems) => prevItems.map((i) => (i._id === item._id ? updatedItem : i)));
fetch(`/api/item/${item._id}`, {
method: 'PUT',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ read: item.read, starred: !item.starred }),
}).catch((err) => console.error('Failed to toggle star', err));
};
useEffect(() => {
const observer = new IntersectionObserver(
(entries) => {
entries.forEach((entry) => {
// Infinity scroll sentinel
if (entry.target.id === 'load-more-sentinel') {
if (entry.isIntersecting && !loadingMore && hasMore && items.length > 0) {
fetchItems(String(items[items.length - 1]._id));
}
return;
}
// If item is not intersecting and is above the viewport, it's been scrolled past
if (!entry.isIntersecting && entry.boundingClientRect.top < 0) {
const index = Number(entry.target.getAttribute('data-index'));
if (!isNaN(index) && index >= 0 && index < items.length) {
const item = items[index];
if (!item.read) {
markAsRead(item);
}
}
}
});
},
{ root: null, threshold: 0 }
);
items.forEach((_, index) => {
const el = document.getElementById(`item-${index}`);
if (el) observer.observe(el);
});
const sentinel = document.getElementById('load-more-sentinel');
if (sentinel) observer.observe(sentinel);
return () => observer.disconnect();
}, [items, loadingMore, hasMore]);
if (loading) return <div className="feed-items-loading">Loading items...</div>;
if (error) return <div className="feed-items-error">Error: {error}</div>;
return (
<div className="feed-items">
{items.length === 0 ? (
<p>No items found.</p>
) : (
<ul className="item-list">
{items.map((item, index) => (
<div
id={`item-${index}`}
key={item._id}
data-index={index}
data-selected={index === selectedIndex}
onClick={() => setSelectedIndex(index)}
>
<FeedItem item={item} />
</div>
))}
{hasMore && (
<div id="load-more-sentinel" className="loading-more">
{loadingMore ? 'Loading more...' : ''}
</div>
)}
</ul>
)}
</div>
);
}
|
