class VolumeTTS {
    ttsParams = {
        lang: 'zh-CN',
        speed: 1, // 将 0-10 转换为 0-1
        pitch: 1, // 将 0-10 转换为 0-1
        volume: 1,
    };
    TTSModule;

    platform = uni.getSystemInfoSync().platform

    constructor(opts) {
        if (opts) this.ttsParams = opts;

        // #ifdef APP-PLUS  
        this.init()
        // #endif
    }

    init() {
        this.TTSModule = uni.requireNativePlugin('nrb-tts-plugin')
        this.TTSModule && this.TTSModule.init({
            "lang": "zh",
            "country": "CN"
        }, res => {
            if (res.success == 0) {
                console.log('TTS初始化成功')
            }
        })
    }

    //加一个text的预处理，将text中的数字替换成 零一二三四五六七八九十
    preprocessText(text) {
        // 将text中的数字替换成 零一二三四五六七八九十
        const digitMap = {
            '0': '零', '1': '一', '2': '二', '3': '三', '4': '四',
            '5': '五', '6': '六', '7': '七', '8': '八', '9': '九'
        };
        
        return text.replace(/\d+/g, match => {
            // 逐字符替换所有数字，包括10
            return match.split('').map(digit => digitMap[digit] || digit).join('');
        });
    }

    speak(text) {
        text = this.preprocessText(text)
        // #ifdef H5
        // H5端使用Web Speech API
        if ('speechSynthesis' in window) {
            const utterance = new SpeechSynthesisUtterance(text)
            utterance.lang = this.ttsParams.lang
            utterance.rate = this.ttsParams.speed
            utterance.pitch = this.ttsParams.pitch
            utterance.volume = this.ttsParams.volume
            speechSynthesis.speak(utterance)
        }
        // #endif

        // #ifdef APP-PLUS
        let opts = this.platform == 'ios' ? {
            "rate": this.ttsParams.speed,
            "lang": "zh-CN",
            "volume": 1
        } : {
            "pitch": this.ttsParams.pitch,
            "speechRate": this.ttsParams.speed,
            "queueMode": 1,
        }
        this.TTSModule.speak(text, opts, (e) => {
            console.log(e, '读取成功')
        })
        // #endif   
    }

    stop() {
        if (this.TTSModule) {
            this.TTSModule.stop()
        }
    }
}

export default VolumeTTS