/* Copyright 2021 Mss Studio
 * Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <string.h>
#include <math.h>

#include <lib/lib8tion/lib8tion.h>

#include QMK_KEYBOARD_H

// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.

enum layer_names {
    _BASE,
    _FN,
};

enum user_rgb_mode {
    RGB_MODE_ALL,
    RGB_MODE_KEYLIGHT,
    RGB_MODE_UNDERGLOW,
    RGB_MODE_NONE,
};

typedef union {
    uint32_t raw;
    struct {
        uint8_t rgb_mode :8;
    };
} user_config_t;

user_config_t user_config;

// enum layer_keycodes { };

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

/*
       ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
       │Esc│ 1 │ 2 │ 3 │ 4 │ 5 │ 6 │ 7 │ 8 │ 9 │ 0 │ - │ = │ Bakspc│
       ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
       │ Tab │ q │ w │ e │ r │ t │ y │ u │ i │ o │ p │ [ │ ] │  \  │
       ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┤
       │ Caps │ a │ s │ d │ f │ g │ h │ j │ k │ l │ ; │ ' │  Enter │
       ├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┴┬───┬───┤
       │ LShift │ z │ x │ c │ v │ b │ n │ m │ , │ . │ RSft │ ↑ │ / │
       ├────┬───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴──┬┴──┬───┼───┼───┤
       │LCrl│GUI │LAlt│         Space          │RAt│Fn │ ← │ ↓ │ → │
       └────┴────┴────┴────────────────────────┴───┴───┴───┴───┴───┘
       ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
       │   │ ! │ @ │ # │ $ │ % │ ^ │ & │ * │ ( │ ) │ _ │ + │       │
       ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
       │     │ Q │ W │ E │ R │ T │ Y │ U │ I │ O │ P │ { │ } │  |  │
       ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┤
       │ Caps │ A │ S │ D │ F │ G │ H │ J │ K │ L │ : │ " │        │
       ├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┴┬───┬───┤
       │ LShift │ Z │ X │ C │ V │ B │ N │ M │ < │ > │ RSft │   │ ? │
       ├────┬───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴──┬┴──┬───┼───┼───┤
       │    │    │    │                        │   │   │   │   │   │
       └────┴────┴────┴────────────────────────┴───┴───┴───┴───┴───┘
*/
    /*  Row:    0        1        2        3     4     5       6     7     8        9        10               11       12       13      */
    [_BASE] = LAYOUT_60_ansi_arrow(
                KC_ESC,  KC_1,    KC_2,    KC_3, KC_4, KC_5,   KC_6, KC_7, KC_8,    KC_9,    KC_0,            KC_MINS, KC_EQL,  KC_BSPC,
                KC_TAB,  KC_Q,    KC_W,    KC_E, KC_R, KC_T,   KC_Y, KC_U, KC_I,    KC_O,    KC_P,            KC_LBRC, KC_RBRC, KC_BSLS,
                KC_CAPS, KC_A,    KC_S,    KC_D, KC_F, KC_G,   KC_H, KC_J, KC_K,    KC_L,    KC_SCLN,         KC_QUOT,          KC_ENT,
                KC_LSFT, KC_Z,    KC_X,    KC_C, KC_V, KC_B,   KC_N, KC_M, KC_COMM, KC_DOT,  RSFT_T(KC_SLSH),          KC_UP,   KC_SLSH,
                KC_LCTL, KC_LGUI, KC_LALT,             KC_SPC,                      KC_RALT, MO(_FN),         KC_LEFT, KC_DOWN, KC_RIGHT
            ),

/*
       ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
       │ ` │F1 │F2 │F3 │F4 │F5 │F6 │F7 │F8 │F9 │F10│F11│F12│ Delete│
       ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
       │Reset│   │   │   │   │   │   │   │Ins│   │PSc│   │Hui│ Mod │
       ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┤
       │      │   │   │   │   │   │   │   │   │Tog│   │   │        │
       ├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┴┬───┬───┤
       │        │   │   │Cal│   │   │   │Mut│VoD│VoU│      │Vai│   │
       ├────┬───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴──┬┴──┬───┼───┼───┤
       │    │    │    │                        │   │   │Spd│Vad│Spi│
       └────┴────┴────┴────────────────────────┴───┴───┴───┴───┴───┘
*/
    /*  Row:    0        1        2        3        4        5        6        7        8        9        10       11       12       13     */
    [_FN]   = LAYOUT_60_ansi_arrow(
                KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_DEL,
                QK_BOOT, _______, _______, _______, _______, _______, _______, _______, KC_INS,  _______, KC_PSCR, _______, RGB_HUI, RGB_MOD,
                _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_TOG, _______, _______,          _______,
                _______, _______, _______, KC_CALC, _______, _______, _______, KC_MUTE, KC_VOLD, KC_VOLU, _______,          RGB_VAI, _______,
                _______, _______, _______,                   _______,                            _______, _______, RGB_SPD, RGB_VAD, RGB_SPI
            ),
};

void keyboard_post_init_user(void) {
    user_config.raw = eeconfig_read_user();
    switch (user_config.rgb_mode) {
        case RGB_MODE_ALL:
            rgb_matrix_set_flags(LED_FLAG_ALL);
            rgb_matrix_enable_noeeprom();
            break;
        case RGB_MODE_KEYLIGHT:
            rgb_matrix_set_flags(LED_FLAG_KEYLIGHT | LED_FLAG_MODIFIER | LED_FLAG_INDICATOR);
            rgb_matrix_set_color_all(0, 0, 0);
            break;
        case RGB_MODE_UNDERGLOW:
            rgb_matrix_set_flags(LED_FLAG_UNDERGLOW);
            rgb_matrix_set_color_all(0, 0, 0);
            break;
        case RGB_MODE_NONE:
            rgb_matrix_set_flags(LED_FLAG_NONE);
            rgb_matrix_set_color_all(0, 0, 0);
            break;
    }
}

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    switch (keycode) {
        case RGB_TOG:
            if (record->event.pressed) {
                switch (rgb_matrix_get_flags()) {
                    case LED_FLAG_ALL: {
                        rgb_matrix_set_flags(LED_FLAG_KEYLIGHT | LED_FLAG_MODIFIER | LED_FLAG_INDICATOR);
                        rgb_matrix_set_color_all(0, 0, 0);
                        user_config.rgb_mode = RGB_MODE_KEYLIGHT;
                    }
                    break;
                    case (LED_FLAG_KEYLIGHT | LED_FLAG_MODIFIER | LED_FLAG_INDICATOR): {
                        rgb_matrix_set_flags(LED_FLAG_UNDERGLOW);
                        rgb_matrix_set_color_all(0, 0, 0);
                        user_config.rgb_mode = RGB_MODE_UNDERGLOW;
                    }
                    break;
                    case (LED_FLAG_UNDERGLOW): {
                        rgb_matrix_set_flags(LED_FLAG_NONE);
                        rgb_matrix_set_color_all(0, 0, 0);
                        user_config.rgb_mode = RGB_MODE_NONE;
                    }
                    break;
                    default: {
                        rgb_matrix_set_flags(LED_FLAG_ALL);
                        rgb_matrix_enable_noeeprom();
                        user_config.rgb_mode = RGB_MODE_ALL;
                    }
                    break;
                }
                eeconfig_update_user(user_config.raw);
            }
            return false;
	}

    return true;
}

bool rgb_matrix_indicators_user(void) {
    HSV      hsv = rgb_matrix_config.hsv;
    uint8_t time = scale16by8(g_rgb_timer, qadd8(32, 1));
    hsv.h        = time;
    RGB      rgb = hsv_to_rgb(hsv);

    if ((rgb_matrix_get_flags() & LED_FLAG_KEYLIGHT)) {
        if (host_keyboard_led_state().caps_lock) {
            rgb_matrix_set_color(28, rgb.r, rgb.g, rgb.b);
        }
    } else {
        if (host_keyboard_led_state().caps_lock) {
            rgb_matrix_set_color(28, rgb.r, rgb.g, rgb.b);
        } else {
            rgb_matrix_set_color(28, 0, 0, 0);
        }
    }
    return false;
}
