front-end/hdApp/src/mixins/priceAudio.js

/**
 *示例
 * this.playPriceAudio(123.32);
 */

export default {
	onLunch() {},
	data() {
		return {
			playing: false,
			priceHanderList: []
		};
	},
	methods: {
		playPriceAudio(price) {
			this.priceHanderList.push(() => {
				return new Promise((resolve, reject) => {
					this.formatPriceAudio(price)
						.then(res => {
							resolve(res);
						})
						.catch(err => {
							reject(err);
						});
				});
			});
			if (this.playing) {
			} else {
				this.playAllPriceAudio();
			}
		},
		async playAllPriceAudio() {
			try {
				this.playing = true;
				await this.formatAudioPromise(this.priceHanderList);

				this.playing = false;
				return true;
			} catch (error) {
				this.playing = false;
			}
		},

		getPriceAutioSrcByType(type) {
			let src = `${this.$constant.imgUrl}/audio/${type}.wav`;

			return src;
		},
		async formatPriceAudio(num) {
			let priceHandler = [];
			let count = String(num);
			let countList = count.split(".");
			let intNum = countList[0];
			let floatNum = countList[1];

			if (intNum >= 0) {
				let priceList = [];
				for (const item of intNum) {
					priceList.push(item);
				}
				let individual = priceList.pop();
				if (individual) {
					priceHandler.unshift(this.createPlayHandler(individual));
					let ten = priceList.pop();
					if (ten) {
						priceHandler.unshift(this.createPlayHandler("shi"));
						priceHandler.unshift(this.createPlayHandler(ten));

						let hundred = priceList.pop();
						if (hundred) {
							priceHandler.unshift(this.createPlayHandler("bai"));
							priceHandler.unshift(this.createPlayHandler(hundred));

							let thousand = priceList.pop();
							if (thousand) {
								priceHandler.unshift(this.createPlayHandler("qian"));
								priceHandler.unshift(this.createPlayHandler(thousand));

								if (priceList.length > 0) {
									priceHandler.unshift(this.createPlayHandler("wan"));
									for (const item of priceList) {
										priceList = [this.createPlayHandler(item)].concat(priceList);
									}
								}
							}
						}
					}
				} else {
					if (floatNum >= 0) {
						priceHandler.unshift(this.createPlayHandler("0"));
					}
				}
			}

			if (floatNum >= 0) {
				priceHandler.push(this.createPlayHandler("."));
				for (const item of floatNum) {
					priceHandler.push(this.createPlayHandler(item));
				}
			}
			priceHandler.push(this.createPlayHandler("yuan"));
			priceHandler.unshift(this.createPlayHandler("ccb"));

			const outBack = async () => {
				return new Promise(resolve => {
					setTimeout(function() {
						resolve();
					}, 500);
				});
			};
			priceHandler.push(outBack);

			return this.formatAudioPromise(priceHandler);
		},
		async formatAudioPromise(handlerList) {
			try {
				const handlerItem = handlerList.shift();
				if (handlerItem) {
					await handlerItem();
					if (handlerList.length > 0) {
						return this.formatAudioPromise(handlerList);
					}
				}
				return true;
			} catch (error) {
				return Promise.reject(error);
			}
		},
		createPlayHandler(type) {
			return () => {
				return new Promise((resolve, reject) => {
					const innerAudioContext = uni.createInnerAudioContext();
					innerAudioContext.autoplay = true;
					innerAudioContext.src = this.getPriceAutioSrcByType(type);
					innerAudioContext.onPlay(() => {
						console.log("开始播放", type);
					});
					innerAudioContext.onError(res => {
						console.log(res.errMsg);
						console.log(res.errCode);
						reject(res);
					});
					innerAudioContext.onEnded(err => {
						console.log("开始结束", type);
						innerAudioContext.destroy();
						resolve(err);
					});
				});
			};
		}
	}
};