Files
learn-languages/src/app/text-speaker/page.tsx

281 lines
10 KiB
TypeScript

"use client";
import Button from "@/components/Button";
import IconClick from "@/components/IconClick";
import IMAGES from "@/config/images";
import { useAudioPlayer } from "@/hooks/useAudioPlayer";
import { getTTSAudioUrl } from "@/utils";
import { ChangeEvent, useEffect, useRef, useState } from "react";
import z from "zod";
export default function Home() {
const [showSpeedAdjust, setShowSpeedAdjust] = useState(false);
const [ipaEnabled, setIPAEnabled] = useState(false);
const [speed, setSpeed] = useState(1);
const [pause, setPause] = useState(true);
const [autopause, setAutopause] = useState(true);
const textRef = useRef('');
// const localeRef = useRef<string | null>(null);
const [locale, setLocale] = useState<string | null>(null);
const [ipa, setIPA] = useState<string>('');
const objurlRef = useRef<string | null>(null);
const [processing, setProcessing] = useState(false);
const [voicesData, setVoicesData] = useState<{
locale: string,
short_name: string
}[] | null>(null);
const [loading, setLoading] = useState(true);
const { playAudio, stopAudio, audioRef } = useAudioPlayer();
useEffect(() => {
fetch('/list_of_voices.json')
.then(res => res.json())
.then(setVoicesData)
.catch(() => setVoicesData(null))
.finally(() => setLoading(false));
}, []);
useEffect(() => {
const audio = audioRef.current;
if (!audio) return;
const handleEnded = () => {
if (autopause) {
setPause(true);
} else {
playAudio(objurlRef.current!);
}
}
audio.addEventListener('ended', handleEnded);
return () => {
audio.removeEventListener('ended', handleEnded);
};
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [audioRef, autopause]);
if (loading) return <div>...</div>;
if (!voicesData) return <div></div>;
const speak = async () => {
if (processing) return;
setProcessing(true);
if (ipa.length === 0 && ipaEnabled && textRef.current.length !== 0) {
const params = new URLSearchParams({
text: textRef.current
});
fetch(`/api/ipa?${params}`)
.then(res => res.json())
.then(data => {
setIPA(data.ipa);
}).catch(e => {
console.error(e);
setIPA('');
})
}
if (pause) {
// 如果没在读
if (textRef.current.length === 0) {
// 没文本咋读
} else {
setPause(false);
if (objurlRef.current) {
// 之前有播放
playAudio(objurlRef.current);
} else {
// 第一次播放
console.log('downloading text info');
const params = new URLSearchParams({
text: textRef.current.slice(0, 30)
});
try {
const textinfo = await (await fetch(`/api/locale?${params}`)).json();
setLocale(textinfo.locale);
const voice = voicesData.find(v => v.locale.startsWith(textinfo.locale));
if (!voice) throw 'Voice not found.';
objurlRef.current = await getTTSAudioUrl(
textRef.current,
voice.short_name,
(() => {
if (speed === 1) return {};
else if (speed < 1) return {
rate: `-${100 - speed * 100}%`
}; else return {
rate: `+${speed * 100 - 100}%`
};
})()
);
playAudio(objurlRef.current);
} catch (e) {
console.error(e);
setPause(true);
setLocale(null);
setProcessing(false);
}
}
}
} else {
// 如果在读就暂停
setPause(true);
stopAudio();
}
setProcessing(false);
}
const handleInputChange = (e: ChangeEvent<HTMLTextAreaElement>) => {
textRef.current = e.target.value.trim();
setLocale(null);
setIPA('');
if (objurlRef.current) URL.revokeObjectURL(objurlRef.current);
objurlRef.current = null;
stopAudio();
setPause(true);
}
const letMeSetSpeed = (new_speed: number) => {
return () => {
setSpeed(new_speed);
if (objurlRef.current) URL.revokeObjectURL(objurlRef.current);
objurlRef.current = null;
stopAudio();
setPause(true);
}
}
const TextSpeakerItemSchema = z.object({
text: z.string(),
ipa: z.string().optional(),
locale: z.string()
});
const TextSpeakerArraySchema = z.array(TextSpeakerItemSchema);
const save = () => {
if (!locale) return;
const getTextSpeakerData = () => {
try {
const item = localStorage.getItem('text-speaker');
if (!item) return [];
const rawData = JSON.parse(item);
const result = TextSpeakerArraySchema.safeParse(rawData);
if (result.success) {
return result.data;
} else {
console.error('Invalid data structure in localStorage:', result.error);
return [];
}
} catch (e) {
console.error('Failed to parse text-speaker data:', e);
return [];
}
}
const save = getTextSpeakerData();
const oldIndex = save.findIndex(v => v.text === textRef.current);
if (oldIndex !== -1) {
const oldItem = save[oldIndex];
if ((ipa && !oldItem.ipa) || (ipa && oldItem.ipa !== ipa)) {
oldItem.ipa = ipa;
localStorage.setItem('text-speaker', JSON.stringify(save));
return;
}
}
if (ipa.length === 0) {
save.push({
text: textRef.current,
locale: locale
});
} else {
save.push({
text: textRef.current,
locale: locale,
ipa: ipa
});
}
localStorage.setItem('text-speaker', JSON.stringify(save));
}
return (<>
<div className="my-4 p-4 mx-4 md:mx-32 border-1 border-gray-200 rounded-2xl">
<textarea className="text-2xl resize-none focus:outline-0 min-h-64 w-full"
onChange={handleInputChange}>
</textarea>
<div className="overflow-auto text-gray-600 h-18">
{ipa}
</div>
<div className="w-full flex flex-row flex-wrap gap-2 justify-center items-center">
<IconClick size={45} onClick={speak} src={
pause ? IMAGES.play_arrow : IMAGES.pause
} alt="playorpause" className={`${processing ? 'bg-gray-200' : ''}`}></IconClick>
<IconClick size={45} onClick={() => {
setAutopause(!autopause); if (objurlRef) { stopAudio(); } setPause(true);
}} src={
autopause ? IMAGES.autoplay : IMAGES.autopause
} alt="autoplayorpause"
></IconClick>
<span>{localStorage.getItem('text-speaker')}</span>
<IconClick size={45} onClick={() => setShowSpeedAdjust(!showSpeedAdjust)}
src={IMAGES.more_horiz}
alt="more"></IconClick>
{locale ? (<IconClick size={45} onClick={save}
src={IMAGES.save}
alt="save"></IconClick>) : (<></>)}
<div className="w-full flex flex-row flex-wrap gap-2 justify-center items-center">
<Button label="生成IPA"
selected={ipaEnabled}
onClick={() => setIPAEnabled(!ipaEnabled)}>
</Button>
<Button label="删除所有保存项"
onClick={() => localStorage.setItem('text-speaker', '[]')}>
</Button>
<Button label="查看保存项"
onClick={}>
</Button>
</div>
<div className="w-full flex flex-row flex-wrap gap-2 justify-center items-center">
{
showSpeedAdjust ? (<>
<IconClick size={45} onClick={letMeSetSpeed(0.5)}
src={IMAGES.speed_0_5x}
alt="0.5x"
className={speed === 0.5 ? 'bg-gray-200' : ''}
></IconClick>
<IconClick size={45} onClick={letMeSetSpeed(0.7)}
src={IMAGES.speed_0_7x}
alt="0.7x"
className={speed === 0.7 ? 'bg-gray-200' : ''}
></IconClick>
<IconClick size={45} onClick={letMeSetSpeed(1)}
src={IMAGES.speed_1x}
alt="1x"
className={speed === 1 ? 'bg-gray-200' : ''}
></IconClick>
<IconClick size={45} onClick={letMeSetSpeed(1.2)}
src={IMAGES.speed_1_2_x}
alt="1.2x"
className={speed === 1.2 ? 'bg-gray-200' : ''}
></IconClick>
<IconClick size={45} onClick={letMeSetSpeed(1.5)}
src={IMAGES.speed_1_5x}
alt="1.5x"
className={speed === 1.5 ? 'bg-gray-200' : ''}
></IconClick>
</>) : <></>
}
</div>
</div>
</div >
</>);
}