/* Copyright 2020 Ibnu D. Aji
 *
 * 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

// enum for combos.
enum combos {
    // left hand combinations.
    COLON_COMMA,
    COMMA_DOT,
    DOT_P,
    P_Y,
    COMMA_P,
    QUOT_Q,
    Q_J,
    J_K,
    Q_K,
    K_X,

    // right hand combinations.
    L_R,
    R_C,
    C_G,
    R_G,
    G_F,
    V_W,
    W_M,
    V_M,
    M_B,

    // both hands combinations.
    J_W,
};

enum {
    _BASE,
    _LOWER,
    _RAISE,
    _ADJUST,
};

enum custom_keycodes {
  BASE = SAFE_RANGE,
  LOWER,
  RAISE,
  ADJUST,
};

// thumb keys.
#define ALT_ENT   ALT_T(KC_ENT)
#define SFT_ESC   SFT_T(KC_ESC)

// home row mods.
#define CT_O LCTL_T(KC_O)
#define CT_N RCTL_T(KC_N)
#define SH_A LSFT_T(KC_A)
#define SH_S RSFT_T(KC_S)
#define AL_E LALT_T(KC_E)
#define AL_T RALT_T(KC_T)
#define GU_I LGUI_T(KC_I)
#define GU_D RGUI_T(KC_D)

// layer toggle.
#define LW_BSPC  LT(_LOWER, KC_BSPC)
#define RS_SPC   LT(_RAISE, KC_SPC)
#define RS_D     LT(_RAISE, KC_D)
#define LW_I     LT(_LOWER, KC_I)

// idk, man. not used, i guess.
#define ADDDD    MO(_ADJUST)

// common shortcuts for windows and linux that i use.
#define NXTTAB LCTL(KC_PGDN)
#define PRVTAB LCTL(KC_PGUP)
#define UPTAB  LCTL(LSFT(KC_PGUP))
#define DNTAB  LCTL(LSFT(KC_PGDN))
#define NXTWIN LALT(KC_TAB)
#define PRVWIN LALT(LSFT(KC_TAB))
#define CALDL  LCTL(LALT(KC_DEL))
#define TSKMGR LCTL(LSFT(KC_ESC))
#define EXPLR  LGUI(KC_E)
#define LCKGUI LGUI(KC_L)
#define CONPST LSFT(KC_INS)
#define CLSGUI LALT(KC_F4)

// left hand combinations.
const uint16_t PROGMEM colon_comma_combo[] = {KC_SCLN, KC_COMM, COMBO_END};
const uint16_t PROGMEM comma_dot_combo[]   = {KC_COMM, KC_DOT, COMBO_END};
const uint16_t PROGMEM dot_p_combo[]       = {KC_DOT, KC_P, COMBO_END};
const uint16_t PROGMEM p_y_combo[]         = {KC_P, KC_Y, COMBO_END};
const uint16_t PROGMEM comma_p_combo[]     = {KC_COMM, KC_P, COMBO_END};
const uint16_t PROGMEM quot_q_combo[]      = {KC_QUOT, KC_Q, COMBO_END};
const uint16_t PROGMEM q_j_combo[]         = {KC_Q, KC_J, COMBO_END};
const uint16_t PROGMEM j_k_combo[]         = {KC_J, KC_K, COMBO_END};
const uint16_t PROGMEM q_k_combo[]         = {KC_Q, KC_K, COMBO_END};
const uint16_t PROGMEM k_x_combo[]         = {KC_K, KC_X, COMBO_END};

// right hand combinations.
const uint16_t PROGMEM l_r_combo[]         = {KC_L, KC_R, COMBO_END};
const uint16_t PROGMEM r_c_combo[]         = {KC_R, KC_C, COMBO_END};
const uint16_t PROGMEM c_g_combo[]         = {KC_C, KC_G, COMBO_END};
const uint16_t PROGMEM r_g_combo[]         = {KC_R, KC_G, COMBO_END};
const uint16_t PROGMEM g_f_combo[]         = {KC_G, KC_F, COMBO_END};
const uint16_t PROGMEM v_w_combo[]         = {KC_V, KC_W, COMBO_END};
const uint16_t PROGMEM w_m_combo[]         = {KC_W, KC_M, COMBO_END};
const uint16_t PROGMEM v_m_combo[]         = {KC_V, KC_M, COMBO_END};
const uint16_t PROGMEM m_b_combo[]         = {KC_M, KC_B, COMBO_END};

// both hand combinations.
const uint16_t PROGMEM j_w_combo[]         = {KC_J, KC_W, COMBO_END};

combo_t key_combos[] = {
    // left hand combinations.
    [COLON_COMMA]   = COMBO(colon_comma_combo,  KC_TAB),
    [COMMA_DOT]     = COMBO(comma_dot_combo,    KC_QUES),
    [DOT_P]         = COMBO(dot_p_combo,        KC_UNDS),
    [P_Y]           = COMBO(p_y_combo,          KC_PIPE),
    [COMMA_P]       = COMBO(comma_p_combo,      PRVTAB),
    [QUOT_Q]        = COMBO(quot_q_combo,       KC_ENT),
    [Q_J]           = COMBO(q_j_combo,          LCTL(KC_W)),
    [J_K]           = COMBO(j_k_combo,          KC_DEL),
    [Q_K]           = COMBO(q_k_combo,          KC_TAB),
    [K_X]           = COMBO(k_x_combo,          KC_TILD),

    // right hand combinations.
    [L_R]           = COMBO(l_r_combo,          KC_BSPC),
    [R_C]           = COMBO(r_c_combo,          KC_SLSH),
    [C_G]           = COMBO(c_g_combo,          KC_MINS),
    [R_G]           = COMBO(r_g_combo,          NXTTAB),
    [G_F]           = COMBO(g_f_combo,          KC_BSLS),
    [V_W]           = COMBO(v_w_combo,          KC_APP),
    [W_M]           = COMBO(w_m_combo,          KC_DEL),
    [V_M]           = COMBO(v_m_combo,          LSFT(KC_TAB)),
    [M_B]           = COMBO(m_b_combo,          KC_GRV),

    // both hand combinations.
    [J_W]           = COMBO(j_w_combo,          KC_ENT),
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[_BASE] = LAYOUT(
    KC_SCLN,KC_COMM,KC_DOT, KC_P,   KC_Y,       KC_F,   KC_G,   KC_C,   KC_R,   KC_L,
    SH_A,   CT_O,   AL_E,   KC_U,   GU_I,       GU_D,   KC_H,   AL_T,   CT_N,   SH_S,
    KC_QUOT,KC_Q,   KC_J,   KC_K,   KC_X,       KC_B,   KC_M,   KC_W,   KC_V,   KC_Z,
                            LW_BSPC,SFT_ESC,    ALT_ENT,RS_SPC
),

[_RAISE] = LAYOUT(
    KC_EXLM,KC_AT,  KC_UP,  KC_LCBR,KC_RCBR,    KC_BSLS,KC_7,   KC_8,   KC_9,   KC_ASTR ,
    KC_HASH,KC_LEFT,KC_DOWN,KC_RGHT,KC_DLR,     KC_EQL, KC_4,   KC_5,   KC_6,   KC_0 ,
    KC_LBRC,KC_RBRC,KC_LPRN,KC_RPRN,KC_AMPR,    KC_GRV, KC_1,   KC_2,   KC_3,   KC_PLUS ,
                            ADDDD  ,_______,    _______,_______
),
[_LOWER] = LAYOUT(
    KC_ESC, KC_QUES,KC_UNDS,KC_F1,  KC_F2,      KC_F3,  KC_F4,  KC_MINS,KC_SLSH,KC_BSPC ,
    KC_LSFT,KC_TAB, KC_PGUP,KC_F5,  KC_F6,      KC_F7,  KC_F8,  KC_HOME,KC_LALT,KC_ENT  ,
    KC_CAPS,KC_SCRL,KC_PGDN,KC_F9,  KC_F10,     KC_F11, KC_F12, KC_END, KC_INS, KC_SLSH ,
                            _______,_______,    _______,ADDDD
),
[_ADJUST] = LAYOUT(
    _______,EXPLR,  KC_UP,  PRVTAB, PRVWIN,     NXTWIN, NXTTAB, _______,_______,LCKGUI,
    TSKMGR, KC_LEFT,KC_DOWN,KC_RGHT,UPTAB,      DNTAB,  KC_ENT, KC_LGUI,_______,CALDL,
    _______,CLSGUI, _______,CONPST, QK_BOOT,    _______,_______,_______,_______,_______,
                            _______,_______,    _______,_______
),
};
