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
|
import {
Alert,
FlatList,
Platform,
StyleSheet,
View,
RefreshControl,
} from 'react-native';
import ParallaxScrollView from '@/components/ParallaxScrollView';
import { ThemedText } from '@/components/ThemedText';
import { ThemedView } from '@/components/ThemedView';
import React, { useState, useCallback } from 'react';
import AsyncStorage from '@react-native-async-storage/async-storage';
import { useFocusEffect } from '@react-navigation/native';
import { Link, router } from 'expo-router';
import { Ionicons } from '@expo/vector-icons';
interface AlertData {
id: string;
userId: string;
createdAt: string;
area: string;
level: string;
}
export default function AlertsScreen() {
const [token, setToken] = useState('');
const [userId, setUserId] = useState('');
const [alerts, setAlerts] = useState<AlertData[]>([]);
const [refreshing, setRefreshing] = useState(false);
const fetchAlerts = async (currentToken: string, currentUserId: string) => {
if (!currentToken || !currentUserId) return;
try {
const response = await fetch(
`${process.env.EXPO_PUBLIC_API_URL}/graphql`,
{
method: 'POST',
headers: {
Authorization: `Bearer ${currentToken}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({
query: `{ alerts { id, userId, createdAt, area, level } }`,
}),
}
);
const data = await response.json();
if (data.errors) {
Alert.alert('Error', 'Error fetching data');
} else if (data.data.alerts) {
setAlerts(data.data.alerts);
}
} catch (err) {
console.error('Fetch Map Data Error:', err);
}
};
const checkAuth = async () => {
const storedToken =
Platform.OS === 'web'
? localStorage.getItem('token')
: await AsyncStorage.getItem('token');
const storedUserId =
Platform.OS === 'web'
? localStorage.getItem('userId')
: await AsyncStorage.getItem('userId');
setToken(storedToken || '');
setUserId(storedUserId || '');
if (!storedToken || !storedUserId) {
setAlerts([]);
Alert.alert(
'Login required',
'You must log in to the system if you want to see alerts list',
[
{
text: 'Ok',
onPress: () => router.push('/'),
},
]
);
}
// Fetch alerts only after token and userId are set
return { storedToken, storedUserId };
};
useFocusEffect(
useCallback(() => {
const init = async () => {
const { storedToken, storedUserId } = await checkAuth();
if (storedToken && storedUserId) {
fetchAlerts(storedToken, storedUserId);
}
};
init();
}, [])
);
const onRefresh = useCallback(() => {
setRefreshing(true);
fetchAlerts(token, userId).finally(() => setRefreshing(false));
}, [token, userId]);
const formatDate = (timestamp: string) => {
const date = new Date(parseInt(timestamp) * 1000);
return `${date.toDateString()} ${date.getHours()}:${(date.getMinutes() < 10 ? '0' : '') + date.getMinutes()}`;
};
const renderAlert = ({ item }: { item: AlertData }) => (
<ThemedView style={styles.alertContainer}>
<View
style={[
styles.alertBox,
{
backgroundColor: item.level === 'ONE'
? '#27ae60'
: item.level === 'TWO'
? '#e67e22'
: '#c0392b',
},
]}
>
<Link
href={`/alerts/${item.id}`}
style={{ width: '100%' }}
>
<View style={styles.dateRow}>
<Ionicons
name="calendar-outline"
size={18}
color="white"
style={styles.icon}
/>
<ThemedText style={styles.dateText}>
{formatDate(item.createdAt)}
</ThemedText>
</View>
</Link>
</View>
</ThemedView>
);
return (
<FlatList
ListHeaderComponent={
<ParallaxScrollView token={token} userId={userId}>
<ThemedView style={styles.header}>
<ThemedText type="subtitle">Alerts</ThemedText>
<ThemedText type="default">
Click on an alert to show more info about the area.
</ThemedText>
</ThemedView>
</ParallaxScrollView>
}
data={alerts}
renderItem={renderAlert}
keyExtractor={(item) => item.id}
contentContainerStyle={styles.listContent}
refreshControl={
<RefreshControl refreshing={refreshing} onRefresh={onRefresh} />
}
/>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
},
header: {
padding: 16,
backgroundColor: '#fff',
},
alertContainer: {
paddingHorizontal: 16,
paddingBottom: 16,
},
alertBox: {
padding: 16,
paddingBottom: 14,
borderRadius: 8,
shadowColor: '#000',
shadowOffset: { width: 0, height: 2 },
shadowOpacity: 0.1,
shadowRadius: 4,
},
dateRow: {
flexDirection: 'row',
alignItems: 'center',
},
icon: {
marginRight: 8,
},
dateText: {
color: '#fff',
},
listContent: {
paddingBottom: 32,
},
});
|
