#include "sd_card_id.h"

#include <cstdio>

namespace roro {

namespace {
char printable(uint8_t b) { return b >= 0x20 && b < 0x7F ? static_cast<char>(b) : '?'; }
}  // namespace

SdCardId parseSdCid(const uint8_t cid[16]) {
    SdCardId id;
    id.manufacturer = cid[0];
    for (int i = 0; i < 2; ++i) id.oem[i] = printable(cid[1 + i]);
    for (int i = 0; i < 5; ++i) id.product[i] = printable(cid[3 + i]);
    id.revisionMajor = cid[8] >> 4;
    id.revisionMinor = cid[8] & 0x0F;
    id.serial = static_cast<uint32_t>(cid[9]) << 24 | cid[10] << 16 | cid[11] << 8 | cid[12];
    // 4 reserved bits, 8 bits of year since 2000, 4 bits of month.
    id.year = 2000 + (((cid[13] & 0x0F) << 4) | (cid[14] >> 4));
    id.month = cid[14] & 0x0F;
    return id;
}

const char* sdManufacturerName(uint8_t id) {
    switch (id) {
        case 0x01: return "Panasonic";
        case 0x02: return "Toshiba/Kioxia";
        case 0x03: return "SanDisk";
        case 0x1B: return "Samsung";
        case 0x1D: return "ADATA";
        case 0x27: return "Phison";
        case 0x28: return "Lexar";
        case 0x31: return "Silicon Power";
        case 0x41: return "Kingston";
        case 0x74: return "Transcend";
        case 0x76: return "Patriot";
        case 0x82: return "Sony";
        case 0x9C: return "Angelbird/Hoodman";
        case 0xAD: return "Longsys/Lexar";
        default: return "unknown";
    }
}

std::string sdCardSummary(const SdCardId& id) {
    char s[112];
    std::snprintf(s, sizeof s, "%s (0x%02X) \"%s\" \"%s\" rev %u.%u, serial %08x, made %04d-%02d",
                  sdManufacturerName(id.manufacturer), id.manufacturer, id.oem, id.product, id.revisionMajor,
                  id.revisionMinor, static_cast<unsigned>(id.serial), id.year, id.month);
    return s;
}

}  // namespace roro