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* ForumHeader - 论坛页面头部组件
*
* 统一风格：左侧头像，中间标题，右侧通知图标
* 包含搜索框
*/
import React, { memo, useCallback, useState, useEffect } from 'react';
import { Pressable, Image as RNImage } from 'react-native';
import Animated, {
useSharedValue,
useAnimatedStyle,
withSpring,
interpolateColor,
useDerivedValue,
} from 'react-native-reanimated';
import { router } from 'expo-router';
import { Bell, Search, X, User } from '@tamagui/lucide-icons';
import { XStack, YStack, Text, Input, Stack, useTheme } from 'tamagui';
import { useUserStore } from '@/src/store/userStore';
import { useThemeColors, useIsDarkMode } from '@/src/hooks/useThemeColors';
export interface ForumHeaderProps {
title?: string;
unreadCount?: number;
onSearch?: (query: string) => void;
onNotificationPress?: () => void;
paddingTop?: number;
}
// 统一头部高度常量
const HEADER_HEIGHT = 56;
function ForumHeaderComponent({
title = '社区',
unreadCount = 0,
onSearch,
onNotificationPress,
paddingTop = 0,
}: ForumHeaderProps) {
const colors = useThemeColors();
const isDark = useIsDarkMode();
const [searchText, setSearchText] = useState('');
const [isSearchFocused, setIsSearchFocused] = useState(false);
const avatarUrl = useUserStore((state) => state.user?.avatarUrl);
const bellScale = useSharedValue(1);
const avatarScale = useSharedValue(1);
// 搜索框聚焦动画
const derivedFocus = useDerivedValue(() => {
return withSpring(isSearchFocused ? 1 : 0, { damping: 20, stiffness: 300 });
}, [isSearchFocused]);
const searchAnimatedStyle = useAnimatedStyle(() => {
return {
borderColor: interpolateColor(derivedFocus.value, [0, 1], [colors.border, colors.primary]),
transform: [{ scale: 1 + derivedFocus.value * 0.01 }],
};
});
const bellAnimatedStyle = useAnimatedStyle(() => ({
transform: [{ scale: bellScale.value }],
}));
const avatarAnimatedStyle = useAnimatedStyle(() => ({
transform: [{ scale: avatarScale.value }],
}));
const handleSearchSubmit = useCallback(() => {
onSearch?.(searchText.trim());
}, [searchText, onSearch]);
const handleClear = useCallback(() => {
setSearchText('');
onSearch?.('');
}, [onSearch]);
const handleNotificationPress = useCallback(() => {
if (onNotificationPress) {
onNotificationPress();
} else E{
router.push('/(tabs)/forum/notifications' as any);
}
}, [onNotificationPress]);
const handleAvatarPress = useCallback(() => {
router.push('/(tabs)/profile' as any);
}, []);
const handleBellPressIn = () => {
bellScale.value = withSpring(0.9, { damping: 15, stiffness: 400 });
};
const handleBellPressOut = () => {
bellScale.value = withSpring(1, { damping: 10, stiffness: 300 });
};
const handleAvatarPressIn = () => {
avatarScale.value = withSpring(0.9, { damping: 15, stiffness: 400 });
};
const handleAvatarPressOut = () => {
avatarScale.value = withSpring(1, { damping: 10, stiffness: 300 });
};
const AnimatedStack = Animated.createAnimatedComponent(Stack);
return (
<YStack
backgroundColor={colors.background as any}
paddingHorizontal={16}
gap={12}
paddingTop={paddingTop}
>
<XStack alignItems="center" justifyContent="space-between" height={HEADER_HEIGHT}>
{/* 左侧：头像 */}
<Pressable
onPress={handleAvatarPress}
onPressIn={handleAvatarPressIn}
onPressOut={handleAvatarPressOut}
>
<AnimatedStack
style={avatarAnimatedStyle}
width={40}
height={40}
borderRadius={20}
backgroundColor={(isDark ? '#3D2A1F' : colors.primaryLight) as any}
alignItems="center"
justifyContent="center"
borderWidth={2}
borderColor={(isDark ? '#4D3A2F' : colors.primaryLight) as any}
overflow="hidden"
>
{avatarUrl ? (
<RNImage
source={{ uri: avatarUrl }}
style={{ width: 40, height: 40, borderRadius: 20 }}
/>
) : (
<User size={20} color={colors.primary as any} />
)}
</AnimatedStack>
</Pressable>
{/* 中间：标题 */}
<Text fontSize={20} fontWeight="700" color={colors.text as any}>
{title}
</Text>
{/* 右侧：通知图标 */}
<Pressable
onPress={handleNotificationPress}
onPressIn={handleBellPressIn}
onPressOut={handleBellPressOut}
>
<AnimatedStack
style={bellAnimatedStyle}
width={40}
height={40}
borderRadius={20}
backgroundColor={colors.backgroundMuted as any}
alignItems="center"
justifyContent="center"
borderWidth={1.5}
borderColor={colors.border as any}
>
<Bell size={20} color={colors.icon as any} />
{unreadCount > 0 && (
<Stack
position="absolute"
top={-4}
right={-4}
minWidth={18}
height={18}
borderRadius={9}
backgroundColor={colors.error as any}
alignItems="center"
justifyContent="center"
paddingHorizontal={4}
borderWidth={2}
borderColor={colors.cardBackground as any}
>
<Text fontSize={10} fontWeight="700" color="white">
{unreadCount > 99 ? '99+' : unreadCount}
</Text>
</Stack>
)}
</AnimatedStack>
</Pressable>
</XStack>
{/* 搜索框 */}
<YStack paddingBottom={12}>
<AnimatedStack
style={[
searchAnimatedStyle,
{
flexDirection: 'row',
backgroundColor: colors.backgroundMuted,
borderRadius: 12,
paddingHorizontal: 14,
paddingVertical: 10,
alignItems: 'center',
gap: 10,
borderWidth: 1.5,
},
]}
>
<Search size={18} color={colors.textTertiary as any} />
<Input
value={searchText}
onChangeText={setSearchText}
placeholder="搜索帖子、标签、用户..."
placeholderTextColor={colors.textMuted}
returnKeyType="search"
onSubmitEditing={handleSearchSubmit}
onFocus={() => setIsSearchFocused(true)}
onBlur={() => setIsSearchFocused(false)}
flex={1}
backgroundColor="transparent"
borderWidth={0}
fontSize={15}
color={colors.text as any}
padding={0}
height={24}
focusStyle={{ borderWidth: 0 }}
/>
{searchText.length > 0 && (
<Pressable onPress={handleClear}>
<Stack
width={24}
height={24}
borderRadius={12}
backgroundColor={colors.border as any}
alignItems="center"
justifyContent="center"
>
<X size={14} color={colors.textSecondary as any} />
</Stack>
</Pressable>
)}
</AnimatedStack>
</YStack>
</YStack>
);
}
export const ForumHeader = memo(ForumHeaderComponent);
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