// Copyright 2022 Sergey Vlasov (@sigprof)
// SPDX-License-Identifier: GPL-2.0-or-later

#include "winry315.h"

#if !defined(WINRY315_DEFAULT_ORIENTATION)
#    define WINRY315_DEFAULT_ORIENTATION WINRY315_ORIENTATION_TOP
#endif

#if defined(ENCODER_ENABLE) && !defined(ENCODER_MAP_ENABLE)
#    ifndef MEDIA_KEY_DELAY
#        define MEDIA_KEY_DELAY 10
#    endif
bool encoder_update_kb(uint8_t index, bool clockwise) {
    if (!encoder_update_user(index, clockwise)) {
        return false;
    }
    if (index == 0) {
        // Left encoder (assuming the default "top" orientation)
        if (clockwise) {
            tap_code(KC_PGDN);
        } else {
            tap_code(KC_PGUP);
        }
    } else if (index == 1) {
        // Center encoder
        if (clockwise) {
            tap_code_delay(KC_VOLU, MEDIA_KEY_DELAY);
        } else {
            tap_code_delay(KC_VOLD, MEDIA_KEY_DELAY);
        }
    } else if (index == 2) {
        // Right encoder
        if (clockwise) {
            tap_code_delay(KC_MNXT, MEDIA_KEY_DELAY);
        } else {
            tap_code_delay(KC_MPRV, MEDIA_KEY_DELAY);
        }
    }
    return true;
}
#endif // defined(ENCODER_ENABLE) && !defined(ENCODER_MAP_ENABLE)

#if defined(RGB_MATRIX_ENABLE)

// LED mapping (assuming the default "top" orientation):
//   0 - right encoder, top right
//   1 - right encoder, top left
//   2 - center encoder, top right
//   3 - center encoder, top left
//   4 - left encoder, top right
//   5 - left encoder, top left
//   6 - row 0, column 0
//   7 - row 1, column 0
//   8 - row 2, column 0
//   9 - row 2, column 1
//  10 - row 1, column 1
//  11 - row 0, column 1
//  12 - row 0, column 2
//  13 - row 1, column 2
//  14 - row 2, column 2
//  15 - row 2, column 3
//  16 - row 1, column 3
//  17 - row 0, column 3
//  18 - row 0, column 4
//  19 - row 1, column 4
//  20 - row 2, column 4
//  21 - underglow, right bottom
//  22 - underglow, left bottom
//  23 - underglow, left middle
//  24 - underglow, left top
//  25 - underglow, right top
//  26 - underglow, right middle

#    define X_MM_MIN (-42)
#    define X_MM_MAX 42
#    define Y_MM_MIN (-40) // actually -35, but adjusted to get height = width
#    define Y_MM_MAX 44    // actually 40, but adjusted to get height = width
#    define WIDTH_MM (X_MM_MAX - X_MM_MIN)
#    define HEIGHT_MM (Y_MM_MAX - Y_MM_MIN)
#    define WIDTH_UNITS (35 * 2)  // needs to match RGB_MATRIX_CENTER
#    define HEIGHT_UNITS (35 * 2) // needs to match RGB_MATRIX_CENTER

// Convert the LED physical coordinates from millimeters with the origin at the
// PCB center to the form expected by the RGB Matrix code.
#    define LED(x_mm, y_mm) \
        { ((x_mm - X_MM_MIN) * WIDTH_UNITS + WIDTH_MM / 2) / WIDTH_MM, ((Y_MM_MAX - y_mm) * HEIGHT_UNITS + HEIGHT_MM / 2) / HEIGHT_MM }

// clang-format off
static const led_config_t PROGMEM initial_led_config = {
    {
        { 6, 11, 12, 17, 18, 7, 10, 13, 16, 19, 8, 9, 14, 15, 20, 2, 0, 4, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED, NO_LED }
    },
    {
        LED( 35,  36),
        LED( 21,  36),
        LED( 8,   34),
        LED(-8,   34),
        LED(-21,  36),
        LED(-35,  36),
        LED(-38,   5),
        LED(-38, -14),
        LED(-38, -33),
        LED(-19, -33),
        LED(-19, -14),
        LED(-19,   5),
        LED(  0,   5),
        LED(  0, -14),
        LED(  0, -33),
        LED( 19, -33),
        LED( 19, -14),
        LED( 19,   5),
        LED( 38,   5),
        LED( 38, -14),
        LED( 38, -33),
        LED( 28, -35),
        LED(-28, -35),
        LED(-37,  -9),
        LED(-42,  40),
        LED( 42,  40),
        LED( 37,  -9)
    },
    {
        1, 1, 1, 1, 1, 1,                               // encoders (colored as modifiers)
        4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,    // regular keys
        2, 2, 2, 2, 2, 2                                // underglow
    }
};
// clang-format on

led_config_t g_led_config;

void keyboard_pre_init_kb(void) {
    // To be safe against any possible changes to rgb_matrix_init(),
    // g_led_config should be initialized before rgb_matrix_init() is called;
    // matrix_init_kb() would be too late, so keyboard_pre_init_kb() is used.
    memcpy_P(&g_led_config, &initial_led_config, sizeof(g_led_config));
    winry315_set_orientation(WINRY315_DEFAULT_ORIENTATION);

    keyboard_pre_init_user();
}

// Encoders have two associated LEDs on this board; supporting more than one
// LED per key requires defining rgb_matrix_map_row_column_to_led_kb() to
// report any extra LEDs.
uint8_t rgb_matrix_map_row_column_to_led_kb(uint8_t row, uint8_t column, uint8_t *led_i) {
    if (row == 0) {
        switch (column) {
            case 15: // center encoder
                led_i[0] = 3;
                return 1;

            case 16: // right encoder
                led_i[0] = 1;
                return 1;

            case 17: // left encoder
                led_i[0] = 5;
                return 1;
        }
    }
    return 0;
}

#endif // defined(RGB_MATRIX_ENABLE)

void winry315_set_orientation(uint8_t orientation) {
    (void)orientation;
#if defined(RGB_MATRIX_ENABLE)
    for (uint8_t i = 0; i < RGB_MATRIX_LED_COUNT; ++i) {
        led_point_t *      dst_point = &g_led_config.point[i];
        const led_point_t *src_point = &initial_led_config.point[i];
        uint8_t            x         = pgm_read_byte(&src_point->x);
        uint8_t            y         = pgm_read_byte(&src_point->y);

        switch (orientation) {
            case WINRY315_ORIENTATION_TOP:
            default:
                dst_point->x = x;
                dst_point->y = y;
                break;

            case WINRY315_ORIENTATION_LEFT:
                dst_point->x = y;
                dst_point->y = WIDTH_UNITS - x;
                break;

            case WINRY315_ORIENTATION_RIGHT:
                dst_point->x = HEIGHT_UNITS - y;
                dst_point->y = x;
                break;

            case WINRY315_ORIENTATION_BOTTOM:
                dst_point->x = WIDTH_UNITS - x;
                dst_point->y = HEIGHT_UNITS - y;
                break;
        }
    }
#endif // defined(RGB_MATRIX_ENABLE)
}