package uts.sdk.modules.masCodeScan

import com.google.mlkit.vision.barcode.common.Barcode

object SymbologyUtil {
    fun nameOf(format: Int): String = when (format) {
        Barcode.FORMAT_QR_CODE -> "QR_CODE"
        Barcode.FORMAT_EAN_13 -> "EAN_13"
        Barcode.FORMAT_EAN_8 -> "EAN_8"
        Barcode.FORMAT_CODE_128 -> "CODE_128"
        Barcode.FORMAT_CODE_39 -> "CODE_39"
        Barcode.FORMAT_CODE_93 -> "CODE_93"
        Barcode.FORMAT_CODABAR -> "CODABAR"
        Barcode.FORMAT_DATA_MATRIX -> "DATA_MATRIX"
        Barcode.FORMAT_UPC_A -> "UPC_A"
        Barcode.FORMAT_UPC_E -> "UPC_E"
        Barcode.FORMAT_ITF -> "ITF"
        Barcode.FORMAT_PDF417 -> "PDF417"
        Barcode.FORMAT_AZTEC -> "AZTEC"
        else -> "UNKNOWN"
    }

    fun hasSupportedFormat(csv: String?): Boolean {
        if (csv.isNullOrBlank()) return true
        return csv.split(',').any { tokenToFormat(it.trim().uppercase()) != null }
    }

    fun parseFormatList(csv: String?): IntArray {
        if (csv.isNullOrBlank()) {
            return intArrayOf(Barcode.FORMAT_ALL_FORMATS)
        }
        val mapped = csv.split(',')
            .map { it.trim().uppercase() }
            .mapNotNull { tokenToFormat(it) }
            .distinct()
        if (mapped.isEmpty()) {
            return intArrayOf(Barcode.FORMAT_ALL_FORMATS)
        }
        // ALL 与具体码制混用时以全格式为准，避免 ML Kit 参数异常
        if (mapped.contains(Barcode.FORMAT_ALL_FORMATS)) {
            return intArrayOf(Barcode.FORMAT_ALL_FORMATS)
        }
        return mapped.toIntArray()
    }

    private fun tokenToFormat(token: String): Int? = when (token) {
        "QR_CODE", "QR" -> Barcode.FORMAT_QR_CODE
        "EAN_13" -> Barcode.FORMAT_EAN_13
        "EAN_8" -> Barcode.FORMAT_EAN_8
        "CODE_128" -> Barcode.FORMAT_CODE_128
        "CODE_39" -> Barcode.FORMAT_CODE_39
        "CODE_93" -> Barcode.FORMAT_CODE_93
        "CODABAR" -> Barcode.FORMAT_CODABAR
        "DATA_MATRIX" -> Barcode.FORMAT_DATA_MATRIX
        "UPC_A" -> Barcode.FORMAT_UPC_A
        "UPC_E" -> Barcode.FORMAT_UPC_E
        "ITF" -> Barcode.FORMAT_ITF
        "PDF417" -> Barcode.FORMAT_PDF417
        "AZTEC" -> Barcode.FORMAT_AZTEC
        "ALL", "FORMAT_ALL_FORMATS" -> Barcode.FORMAT_ALL_FORMATS
        else -> null
    }

    fun isDecodedText(barcode: Barcode): Boolean {
        return !barcode.rawValue.isNullOrBlank()
    }
}