class BandpassProcessor extends AudioWorkletProcessor {
    process(inputs, outputs, parameters) {
        const input = inputs[0];
        const output = outputs[0];
        const frequency = parameters.frequency;
        const Q = parameters.Q;

        for (let channel = 0; channel < input.length; channel++) {
            const inputChannel = input[channel];
            const outputChannel = output[channel];

            for (let i = 0; i < inputChannel.length; i++) {
                // Apply bandpass filter to inputChannel[i] and store the result in outputChannel[i]
                // using the provided frequency and Q parameters
            }
        }

        // Calculate the RMS value of the output audio data
        const rms = this.calculateRMS(output);

        // Calculate the dB values
        const dbValues = this.convertToDB(output);

        // Calculate the 10th and 90th percentile values
        const percentile10 = this.calculatePercentile(dbValues, 10);
        const percentile90 = this.calculatePercentile(dbValues, 90);

        // Send the processed data to the main thread
        this.port.postMessage({ rms, dbValues, percentile10, percentile90 });

        return true;
    }

    calculateRMS(data) {
        let sumOfSquares = 0;
        for (let channel = 0; channel < data.length; channel++) {
            const channelData = data[channel];
            for (let i = 0; i < channelData.length; i++) {
                sumOfSquares += channelData[i] * channelData[i];
            }
        }
        const meanSquare = sumOfSquares / (data.length * data[0].length);
        const rms = Math.sqrt(meanSquare);
        return rms;
    }

    calculatePercentile(data, percentile) {
        const sortedData = data.slice().sort((a, b) => a - b);
        const index = Math.floor((percentile / 100) * sortedData.length);
        return sortedData[index];
    }

    convertToDB(data) {
        const dbValues = [];
        for (let channel = 0; channel < data.length; channel++) {
            const channelData = data[channel];
            for (let i = 0; i < channelData.length; i++) {
                const amplitude = Math.abs(channelData[i]);
                const db = 20 * Math.log10(amplitude + this.minAmplitude);
                dbValues.push(db);
            }
        }
        return dbValues;
    }
}

export default registerProcessor('bandpass-processor', BandpassProcessor);