/*
 * Copyright (c) 2020 The ZMK Contributors
 *
 * SPDX-License-Identifier: MIT
 */

 /*****************************************
 *   - YOU MUST SET THE FOLLOWING CONFIG VALUES FOR THIS SETUP TO WORK PROPERLY IN YOUR BOARDS .conf FILE
 *     - CONFIG_ZMK_COMBO_MAX_COMBOS_PER_KEY=16
 *     - CONFIG_ZMK_COMBO_MAX_KEYS_PER_COMBO=8
 *     - CONFIG_ZMK_COMBO_MAX_PRESSED_COMBOS=8
 *****************************************/

////////////////////////////////////////
// Various includes
#include <behaviors.dtsi>
#include <dt-bindings/zmk/keys.h>
#include <dt-bindings/zmk/rgb.h>
#include <dt-bindings/zmk/ext_power.h>
#include <dt-bindings/zmk/bt.h>
#include <dt-bindings/zmk/outputs.h>

////////////////////////////////////////
// Layers
#define LAYER_ID_GLOBAL -1
#define LAYER_ID_DEFAULT 0
#define LAYER_ID_FUNC 1
#define LAYER_ID_NAV 2
#define LAYER_ID_BASE 3
#define LAYER_ID_NUMBERS 4
#define LAYER_ID_SYMBOLS 5
#define LAYER_ID_PARENTHETICALS 6
#define LAYER_ID_NAVIGATION 7
#define LAYER_ID_BT_SEL 8
#define LAYER_ID_CUSTOM 9
#define LAYER_ID_BIG_SYM 10
#define LAYER_ID_BIG_FUNCTION 11
#define LAYERS_ARTSEY_BASE LAYER_ID_DEFAULT LAYER_ID_BASE
#define LAYERS_ARTSEY LAYER_ID_BASE LAYER_ID_NUMBERS LAYER_ID_SYMBOLS LAYER_ID_PARENTHETICALS LAYER_ID_NAVIGATION LAYER_ID_BT_SEL LAYER_ID_CUSTOM LAYER_ID_BIG_SYM LAYER_ID_BIG_FUNCTION
#define LAYERS_ARTSEY_PLUS LAYER_ID_DEFAULT LAYERS_ARTSEY

////////////////////////////////////////
// Artsey definitions
#define ARTSEY_BT_TOP &out OUT_BLE
#define ARTSEY_BT_BOTTOM &out OUT_USB
#define TIMEOUT_COMBO_2 150
#define TIMEOUT_COMBO_3 150
#define TIMEOUT_COMBO_4 150
#define TIMEOUT_LAYER_HOLD 250
#define ARTSEY_BASE_A A
#define ARTSEY_BASE_R R
#define ARTSEY_BASE_T T
#define ARTSEY_BASE_S S
#define ARTSEY_BASE_E E
#define ARTSEY_BASE_Y Y
#define ARTSEY_BASE_I I
#define ARTSEY_BASE_O O
#define ARTSEY_COMBO_N N
#define KEY_A 4
#define KEY_R 3
#define KEY_T 2
#define KEY_S 1
#define KEY_E 16
#define KEY_Y 15
#define KEY_I 14
#define KEY_O 13
#define KEY_F_TOP 5
#define KEY_F_BOTTOM 17

////////////////////////////////////////
// Enable OLED
&pro_micro_i2c {
	status = "okay";
};

////////////////////////////////////////
// Sticky / Leader Keys / Hold Tap Keys
#define TIMEOUT_STICKY_LEADER_KEY 5000
&sk {
	release-after-ms = <TIMEOUT_STICKY_LEADER_KEY>;
};
&sl { 
	release-after-ms = <TIMEOUT_STICKY_LEADER_KEY>;
};

////////////////////////////////////////
// Behaviors
/ {
    behaviors {
		tildeesc: tilde_escape {
			compatible = "zmk,behavior-mod-morph";
			label = "tildeesc";
			#binding-cells = <0>;
			bindings = <&kp ESC>, <&kp TILDE>;
            mods = <(MOD_LSFT)>;
		};
		artsey: artsey { compatible = "zmk,behavior-hold-tap"; label = "artsey"; 
						#binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred"; 
						bindings = <&tog>, <&kp>; };
        ht_mo_kp: ht_mo_kp { compatible = "zmk,behavior-hold-tap"; label = "ht_mo_kp"; 
                        #binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred"; 
                        bindings = <&mo>, <&kp>; };
		ht_mo_kp: ht_mo_kp { compatible = "zmk,behavior-hold-tap"; label = "ht_mo_kp"; 
                        #binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred"; 
                        bindings = <&mo>, <&kp>; };
        ht_kp_kp: ht_kp_kp { compatible = "zmk,behavior-hold-tap"; label = "ht_kp_kp"; 
						#binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred"; 
						bindings = <&kp>, <&kp>; };
		layer_base_kp: layer_base_kp { compatible = "zmk,behavior-hold-tap"; label = "layer_base_kp"; 
						#binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred"; 
						bindings = <&mo>, <&kp>; };
		layer_numbers_kp: layer_numbers_kp { compatible = "zmk,behavior-hold-tap"; label = "layer_numbers_kp"; 
						#binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred"; 
						bindings = <&mo>, <&kp>; };
		layer_symbols_kp: layer_symbols_kp { compatible = "zmk,behavior-hold-tap"; label = "layer_symbols_kp"; 
						#binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred"; 
						bindings = <&mo>, <&kp>; };
		layer_parentheticals_kp: layer_parentheticals_kp { compatible = "zmk,behavior-hold-tap"; label = "layer_parentheticals_kp";
						#binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred";
						bindings = <&mo>, <&kp>; };
		layer_custom_kp: layer_custom_kp { compatible = "zmk,behavior-hold-tap"; label = "layer_custom_kp";
						#binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred";
						bindings = <&mo>, <&kp>; };
        ctrl_alt_kp: ctrl_alt_kp { compatible = "zmk,behavior-hold-tap"; label = "ctrl_alt_kp";
						#binding-cells = <2>; tapping_term_ms = <TIMEOUT_LAYER_HOLD>; flavor = "tap-preferred";
						bindings = <&sk>, <&sk>; };
	};
};

////////////////////////////////////////
// Combos
/ {
	combos {
		compatible = "zmk,combos";
		/*****************************************
		 * 2 key combos
		 *****************************************/
		// Function layer doesn't apply to non-big artsey presently
		#if defined ARTSEY_BIG
		combo_layer_functions { layers = <LAYERS_ARTSEY_PLUS>; key-positions = <KEY_F_TOP KEY_F_BOTTOM>; bindings = <&sl LAYER_ID_BIG_FUNCTION>; };
		#endif
		combo_enter      { layers = <LAYERS_ARTSEY>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_E>; bindings = <&kp ENTER>; };
		combo_control    { layers = <LAYERS_ARTSEY>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_S>; bindings = <&sk RCTRL>; };
		combo_gui        { layers = <LAYERS_ARTSEY>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_Y KEY_S>; bindings = <&sk LGUI>; };
		combo_alt        { layers = <LAYERS_ARTSEY_PLUS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_I KEY_S>; bindings = <&sk LALT>; };
		combo_backspace  { layers = <LAYERS_ARTSEY>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_R>; bindings = <&kp BACKSPACE>; };
		combo_delete     { layers = <LAYERS_ARTSEY>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_I KEY_R>; bindings = <&kp DELETE>; };
		combo_shift_lock { layers = <LAYERS_ARTSEY_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_R KEY_Y>; bindings = <&kt LSHFT>; };

		combo_b           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_O>; bindings = <&kp B>; };
		combo_c           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_Y>; bindings = <&kp C>; };
		combo_n           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_I KEY_O>; bindings = <&kp ARTSEY_COMBO_N>; };
		combo_f           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_R>; bindings = <&kp F>; };
		combo_g           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_R KEY_T>; bindings = <&kp G>; };
		combo_u           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_Y KEY_I>; bindings = <&kp U>; };
		combo_h           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_I>; bindings = <&kp H>; };
		combo_v           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_R KEY_S>; bindings = <&kp V>; };
		combo_j           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_T KEY_S>; bindings = <&kp J>; };
		combo_w           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_S>; bindings = <&kp W>; };
		combo_k           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_Y KEY_O>; bindings = <&kp K>; };
		combo_comma       { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_Y>; bindings = <&kp COMMA>; };
		combo_period      { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_I>; bindings = <&kp PERIOD>; };
		combo_slash       { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_O>; bindings = <&kp SLASH>; };
		combo_exclamation { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_T KEY_I>; bindings = <&kp EXCL>; };
		
		combo_seven { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_R>; bindings = <&kp N7>; };
		combo_eight { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_R KEY_T>; bindings = <&kp N8>; };
		combo_nine  { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_Y>; bindings = <&kp N9>; };
		combo_zero  { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_Y KEY_I>; bindings = <&kp N0>; };

		/*****************************************
		 * 3 key combos
		 *****************************************/
		combo_esc              { layers = <LAYERS_ARTSEY_PLUS>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_A KEY_R KEY_O>; bindings = <&kp ESC>; };
		combo_layer_navigation { layers = <LAYERS_ARTSEY_PLUS>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_R KEY_E KEY_I>; bindings = <&tog LAYER_ID_NAVIGATION>; };

		combo_m            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_Y KEY_I KEY_O>; bindings = <&kp M>; };
		combo_d            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_A KEY_R KEY_T>; bindings = <&kp D>; };
		combo_p            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_E KEY_I KEY_O>; bindings = <&kp P>; };
		combo_q            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_A KEY_T KEY_S>; bindings = <&kp Q>; };
		combo_x            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_R KEY_T KEY_S>; bindings = <&kp X>; };
		combo_l            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_E KEY_Y KEY_I>; bindings = <&kp L>; };
		combo_single_quote { layers = <LAYERS_ARTSEY_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_A KEY_Y KEY_I>; bindings = <&kp SQT>; };
		
		/*****************************************
		 * 4 key combos
		 *****************************************/
		combo_tab             { layers = <LAYERS_ARTSEY_PLUS>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_A KEY_R KEY_T KEY_O>; bindings = <&kp TAB>; };
		combo_space           { layers = <LAYERS_ARTSEY_PLUS>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_E KEY_Y KEY_I KEY_O>; bindings = <&kp SPACE>; };
		combo_shift           { layers = <LAYERS_ARTSEY_PLUS>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_E KEY_R KEY_T KEY_S>; bindings = <&sk LSHFT>; };
		combo_layer_bt_select { layers = <LAYERS_ARTSEY_PLUS>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_A KEY_E KEY_S KEY_O>; bindings = <&tog LAYER_ID_BT_SEL>; };
		combo_bt_clr          { layers = <LAYERS_ARTSEY_PLUS>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_R KEY_Y KEY_T KEY_I>; bindings = <&bt BT_CLR>; };

		combo_z         { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_A KEY_R KEY_T KEY_S>; bindings = <&kp Z>; };
		combo_caps_lock { layers = <LAYERS_ARTSEY_BASE>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_O KEY_I KEY_Y KEY_A>; bindings = <&kp CAPS>; };
	};
};

////////////////////////////////////////
// Keymap (main THEN artsey)
/ {
	keymap {
		compatible = "zmk,keymap";
		default_layer {
			label = "ANSI";
			bindings = <
&tildeesc  &layer_numbers_kp LAYER_ID_NUMBERS Q  &kp W  &kp E  &layer_parentheticals_kp LAYER_ID_PARENTHETICALS R  &artsey LAYER_ID_BASE T  &artsey LAYER_ID_BASE Y  &kp U  &kp I      &kp O   &kp P               &kp BSPC
&kp TAB    &layer_custom_kp LAYER_ID_CUSTOM A    &kp S  &kp D  &layer_symbols_kp LAYER_ID_SYMBOLS F                &kp G                    &kp H                    &kp J  &kp K      &kp L   &ht_kp_kp SQT SEMI  &kp RET
&kp LCTRL  &kp Z                                 &kp X  &kp C  &kp V                                               &kp B                    &kp N                    &kp M  &kp COMMA  &kp DOT &ht_kp_kp BSLH FSLH &kp RCTRL
&kp LGUI   &mo LAYER_ID_BIG_SYM    &kp SPACE    &ht_mo_kp LAYER_ID_NAV SPACE    &ht_mo_kp LAYER_ID_FUNC MINUS    &ht_kp_kp AT EQUAL
			>;
		};

		function_layer {
			label = "Function";
			bindings = <
&kp GRAVE  &kp F1  &kp F2  &kp F3  &kp F4  &kp F5  &kp F6   &kp F7  &kp F8  &kp F9  &kp F10  &kp DEL
&trans     &kp N1  &kp N2  &kp N3  &kp N4  &kp N5  &kp N6   &kp N7  &kp N8  &kp N9  &kp N0   &kp INSERT
&trans     &trans  &trans  &trans  &trans  &kp F11 &kp F12  &trans  &trans  &trans  &trans   &kp PSCRN
&kp LALT   &trans    &trans    &trans    &trans    &ext_power EP_TOG
			>;
		};

		nav_layer {
			label = "Nav";
			bindings = <
&trans     &kp PG_UP  &kp HOME  &kp UP      &kp END    &trans  &trans  &trans  &trans  &trans  &trans  &kp DEL
&kp LSHFT  &kp PG_DN  &kp LEFT  &kp DOWN    &kp RIGHT  &trans  &trans  &trans  &trans  &trans  &trans  &trans
&kp LGUI     &trans     &trans    &trans      &trans     &trans  &trans  &trans  &trans  &trans  &trans  &trans 
&kp LCTRL    &trans    &trans    &trans    &trans    &trans
			>;
		};

artsey_base {
			label = "*ARTSEY*";
            bindings = <
&none  &layer_numbers_kp LAYER_ID_NUMBERS ARTSEY_BASE_S    &kp ARTSEY_BASE_T     &kp ARTSEY_BASE_R     &layer_parentheticals_kp LAYER_ID_PARENTHETICALS ARTSEY_BASE_A &artsey LAYER_ID_BASE MINUS  &tog LAYER_ID_BASE  &none  &none  &none  &none  &none
&none  &layer_custom_kp LAYER_ID_CUSTOM ARTSEY_BASE_O      &kp ARTSEY_BASE_I     &kp ARTSEY_BASE_Y     &layer_symbols_kp LAYER_ID_SYMBOLS ARTSEY_BASE_E               &sk LSHFT  &none  &none  &none  &none  &none  &none
&none  &ctrl_alt_kp LALT RCTRL                             &kp AT                &kp DEL               &kp EQUAL                                                      &kp TAB    &none  &none  &none  &none  &none  &none
&none    &mo LAYER_ID_BIG_SYM    &kp SPACE    &trans    &none    &none
			>;
		};
        artsey_numbers {
			label = "Number";
            bindings = <
&none &mo LAYER_ID_NUMBERS  &kp N3  &kp N2  &kp N1  &none  &none  &none  &none  &none  &none  &none
&none &none                 &kp N6  &kp N5  &kp N4  &none  &none  &none  &none  &none  &none  &none
&none &none                 &none   &none   &none   &none  &none  &none  &none  &none  &none  &none
&none    &none    &none    &trans    &none    &none
            >;
		};
        artsey_symbols {
			label = "Symbol";
            bindings = <
&none &kp GRAVE  &kp SEMI   &kp BSLH   &kp EXCL              &none  &none  &none  &none  &none  &none  &none
&none &kp EQUAL  &kp MINUS  &kp QMARK  &mo LAYER_ID_SYMBOLS  &none  &none  &none  &none  &none  &none  &none
&none &none      &none      &none      &none                 &none  &none  &none  &none  &none  &none  &none
&none    &none    &none    &trans    &none    &none
            >;
		};
        artsey_parentheticals {
			label = "Paren";
            bindings = <
&none &kp LBRC  &kp LPAR  &kp RPAR  &mo LAYER_ID_PARENTHETICALS  &none  &none  &none  &none  &none  &none  &none
&none &kp RBRC  &kp LBKT  &kp RBKT  &none                        &none  &none  &none  &none  &none  &none  &none
&none &none     &none     &none     &none                        &none  &none  &none  &none  &none  &none  &none
&none    &none    &none    &trans    &none    &none
            >;
		};
        artsey_navigation {
			label = "Nav";
            bindings = <
&none &kp PG_UP  &kp HOME  &kp UP    &kp END    &none  &none  &none  &none  &none  &none  &none
&none &kp PG_DN  &kp LEFT  &kp DOWN  &kp RIGHT  &none  &none  &none  &none  &none  &none  &none
&none &none      &none     &none     &none      &none  &none  &none  &none  &none  &none  &none
&none    &none    &none    &trans    &none    &none
            >;
		};
        artsey_bt {
			label = "BT";
            bindings = <
&none ARTSEY_BT_TOP    &bt BT_SEL 2 &bt BT_SEL 1 &bt BT_SEL 0  &none  &none  &none  &none  &none  &none  &none
&none ARTSEY_BT_BOTTOM &bt BT_SEL 5 &bt BT_SEL 4 &bt BT_SEL 3  &none  &none  &none  &none  &none  &none  &none
&none &none            &none        &none        &none         &none  &none  &none  &none  &none  &none  &none
&none    &none    &none    &trans    &none    &none
            >;
		};
        artsey_custom {
			label = "Custom";
            bindings = <
&none &none                &kp C_VOL_UP  &kp INS   &kp C_MUTE  &none  &none  &none  &none  &none  &none  &none
&none &mo LAYER_ID_CUSTOM  &kp C_VOL_DN  &kp PSCRN &sk RSHFT   &none  &none  &none  &none  &none  &none  &none
&none &none                &none         &none     &none       &none  &none  &none  &none  &none  &none  &none
&none    &none    &none    &trans    &none    &none
            >;
		};
        big_artsey_symbol {
			label = "*Symbol*";
            bindings = <
&none  &kp CARET  &kp LBRC  &kp RBRC  &kp HASH   &kp GRAVE  &none  &none  &none  &none  &none  &none
&none  &kp AMPS   &kp LPAR  &kp RPAR  &kp DLLR   &kp BSLH   &none  &none  &none  &none  &none  &none
&none  &kp ASTRK  &kp LBKT  &kp RBKT  &kp PRCNT  &kp PIPE   &none  &none  &none  &none  &none  &none
&none    &none    &kp SEMI    &trans    &none    &none
            >;
		};
        big_artsey_function {
			label = "*Func*";
            bindings = <
&none  &kp F4   &kp F3   &kp F2   &kp F1  &none  &none  &none  &none  &none  &none  &none
&none  &kp F8   &kp F7   &kp F6   &kp F5  &none  &none  &none  &none  &none  &none  &none
&none  &kp F12  &kp F11  &kp F10  &kp F9  &none  &none  &none  &none  &none  &none  &none
&none    &none    &none    &trans    &none    &none
            >;
		};
	};
};