/*
Copyright 2020 Barabas Raffai

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 QMK_KEYBOARD_H

extern uint8_t is_master;

enum layer_number {
    _QWERTY = 0,
    _GAME,
    _LOWER,
    _RAISE,
    _ADJUST,
};

/* clang-format off */
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

/* QWERTY
 * ,-----------------------------------------.                    ,-----------------------------------------.
 * | ESC  |      |      |      |      |      |                    |      |      |      |      |      |  `   |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * | Tab  |   Q  |   W  |   E  |   R  |   T  |                    |   Y  |   U  |   I  |   O  |   P  |  -   |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |LCTRL |   A  |   S  |   D  |   F  |   G  |-------.    ,-------|   H  |   J  |   K  |   L  |   ;  |  '   |
 * |------+------+------+------+------+------|   [   |    |    ]  |------+------+------+------+------+------|
 * |LShift|   Z  |   X  |   C  |   V  |   B  |-------|    |-------|   N  |   M  |   ,  |   .  |   /  |RShift|
 * `-----------------------------------------/       /     \      \-----------------------------------------'
 *                   | LAlt | LGUI |LOWER | /Space  /       \Enter \  |RAISE |BackSP| RGUI |
 *                   |      |      |      |/       /         \      \ |      |      |      |
 *                   `----------------------------'           '------''--------------------'
 */

[_QWERTY] = LAYOUT(
    KC_ESC,   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_GRV,
    KC_TAB,   KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                      KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_MINS,
    KC_LCTRL, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,                      KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,
    KC_LSFT,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,  KC_LBRC,  KC_RBRC,  KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,
                           KC_LALT, KC_LGUI, MO(_LOWER), KC_SPC,   KC_ENT, MO(_RAISE), KC_BSPC, KC_RGUI
),

 /* game layer adds the number row back */

[_GAME] = LAYOUT(
    _______, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    _______,
    _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
    _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
                               _______, _______, _______, _______, _______, _______, _______, _______
),
/* LOWER
 * ,-----------------------------------------.                    ,-----------------------------------------.
 * |      |      |      |      |      |      |                    |      |      |      |      |      |      |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |                    |  F7  |  F8  |  F9  | F10  | F11  | F12  |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |   `  |   !  |   @  |   #  |   $  |   %  |-------.    ,-------|   ^  |   &  |   *  |   (  |   )  |   -  |
 * |------+------+------+------+------+------|   [   |    |    ]  |------+------+------+------+------+------|
 * |      |      |      |      |      |      |-------|    |-------|      |   _  |   +  |   {  |   }  |   |  |
 * `-----------------------------------------/       /     \      \-----------------------------------------'
 *                   | LAlt | LGUI |LOWER | /Space  /       \Enter \  |RAISE |BackSP| RGUI |
 *                   |      |      |      |/       /         \      \ |      |      |      |
 *                   `----------------------------'           '------''--------------------'
 */
[_LOWER] = LAYOUT(
    _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
    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_GRV,  KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,                   KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_TILD,
    _______, _______, _______, _______, _______, _______, _______, _______, XXXXXXX, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE,
                               _______, _______, _______, _______, _______,  _______, _______, _______
),
/* RAISE
 * ,-----------------------------------------.                    ,-----------------------------------------.
 * |      |      |      |      |      |      |                    |      |      |      |      |      | GAME |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |   `  |   1  |   2  |   3  |   4  |   5  |                    |   6  |   7  |   8  |   9  |   0  |      |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |      |      |      |      |      |      |-------.    ,-------| Left | Down |  Up  |Right |      |      |
 * |------+------+------+------+------+------|   [   |    |    ]  |------+------+------+------+------+------|
 * |      |      |      |      |      |      |-------|    |-------|   +  |   -  |   =  |   [  |   ]  |   \  |
 * `-----------------------------------------/       /     \      \-----------------------------------------'
 *                   | LAlt | LGUI |LOWER | /Space  /       \Enter \  |RAISE |BackSP| RGUI |
 *                   |      |      |      |/       /         \      \ |      |      |      |
 *                   `----------------------------'           '------''--------------------'
 */

[_RAISE] = LAYOUT(
    _______, _______, _______, _______, _______, _______,                     _______, _______, _______, _______, _______, TG(_GAME),
    KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                        KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    _______,
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                     KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, XXXXXXX, XXXXXXX,
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,  _______, _______,  KC_PLUS, KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS,
                               _______, _______, _______,  _______, _______,  _______, _______, _______
),

[_ADJUST] = LAYOUT( \
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
                               _______, _______, _______, _______, _______,  _______, _______, _______
)
};
/* clang-format on */

// Setting ADJUST layer RGB back to default
void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
    if (IS_LAYER_ON(layer1) && IS_LAYER_ON(layer2)) {
        layer_on(layer3);
    } else {
        layer_off(layer3);
    }
}

// SSD1306 OLED update loop, make sure to enable OLED_ENABLE=yes in rules.mk
#ifdef OLED_ENABLE

oled_rotation_t oled_init_user(oled_rotation_t rotation) {
    if (!is_keyboard_master()) return OLED_ROTATION_180;  // flips the display 180 degrees if offhand
    return rotation;
}

const char *read_logo(void);
void        set_keylog(uint16_t keycode, keyrecord_t *record);
const char *read_keylog(void);
const char *read_keylogs(void);

#    define RAISE_MASK (1 << _RAISE)
#    define LOWER_MASK (1 << _LOWER)
#    define GAME_MASK (1 << _GAME)
void write_layer_state(void) {
    switch (layer_state & (~GAME_MASK)) {
        case (RAISE_MASK | LOWER_MASK):
            oled_write_P(PSTR("Adjust"), false);
            break;
        case RAISE_MASK:
            oled_write_P(PSTR("Raise"), false);
            break;
        case LOWER_MASK:
            oled_write_P(PSTR("Lower"), false);
            break;
        case 0:
            oled_write_P(PSTR("Default"), false);
            break;
        default:
            oled_write_P(PSTR("Undef-"), false);
            {
                char s[3];
                itoa(layer_state, s, 16);
                oled_write(s, false);
            }
            break;
    }

    if (layer_state & GAME_MASK) {
        oled_write_P(PSTR(" + Game"), false);
    }

    oled_advance_page(true);
}

bool oled_task_user(void) {
    if (is_keyboard_master()) {
        write_layer_state();
        oled_write_ln(read_keylog(), false);
        oled_write_ln(read_keylogs(), false);
    } else {
        oled_write(read_logo(), false);
    }
    return false;
}
#endif  // OLED_ENABLE

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    if (record->event.pressed) {
#ifdef OLED_ENABLE
        set_keylog(keycode, record);
#endif
    }
    return true;
}