#include "Console.hpp"

#include <cstdint>

#include "hwcomm/Screen.hpp"
#include "print.hpp"

Console::Console()
    : mouseX(hwcomm::Screen::cols - 1), mouseY(hwcomm::Screen::lines - 1)
{
}

void
Console::onKeyDown(std::uint8_t scanCode)
{
    const char key = mapScanCode(scanCode);
    if (key == '\0') {
        kprint("KEYBOARD 0x", scanCode, "\n");
        return;
    }

    char str[] = { key, '\0' };
    kprint(str);
}

char
mapScanCode(std::uint8_t scanCode)
{
    switch (scanCode) {
        case 0x02: return '1';
        case 0x03: return '2';
        case 0x04: return '3';
        case 0x05: return '4';
        case 0x06: return '5';
        case 0x07: return '6';
        case 0x08: return '7';
        case 0x09: return '8';
        case 0x0a: return '9';
        case 0x0b: return '0';

        case 0x10: return 'q';
        case 0x11: return 'w';
        case 0x12: return 'e';
        case 0x13: return 'r';
        case 0x14: return 't';
        case 0x15: return 'y';
        case 0x16: return 'u';
        case 0x17: return 'i';
        case 0x18: return 'o';
        case 0x19: return 'p';

        case 0x1e: return 'a';
        case 0x1f: return 's';
        case 0x20: return 'd';
        case 0x21: return 'f';
        case 0x22: return 'g';
        case 0x23: return 'h';
        case 0x24: return 'j';
        case 0x25: return 'k';
        case 0x26: return 'l';

        case 0x2c: return 'z';
        case 0x2d: return 'x';
        case 0x2e: return 'c';
        case 0x2f: return 'v';
        case 0x30: return 'b';
        case 0x31: return 'n';
        case 0x32: return 'm';
        case 0x33: return ',';
        case 0x34: return '.';
        case 0x35: return '/';

        case 0x1c: return '\n';
        case 0x39: return ' ';

        default:
            return  '\0';
    }
}

void
Console::onActivate()
{
    getScreen().invertAt(mouseX, mouseY);
}

void
Console::onMouseMove(int dx, int dy)
{
    getScreen().invertAt(mouseX, mouseY);

    mouseX += dx;
    if (mouseX >= hwcomm::Screen::cols) {
        mouseX = hwcomm::Screen::cols - 1;
    }
    if (mouseX < 0) {
        mouseX = 0;
    }

    mouseY += dy;
    if (mouseY >= hwcomm::Screen::lines) {
        mouseY = hwcomm::Screen::lines - 1;
    }
    if (mouseY < 0) {
        mouseY = 0;
    }

    getScreen().invertAt(mouseX, mouseY);
}