#include <behaviors.dtsi>
#include <dt-bindings/zmk/keys.h>
#include <dt-bindings/zmk/bt.h>

#define HOST_OS 1
#include "../../../../zmk-nodefree-config/helper.h"


ZMK_UNICODE_PAIR(lin_ae, N0, N0, E, N4, N0, N0, C, N4)
ZMK_UNICODE_PAIR(lin_ao, N0, N0, E, N5, N0, N0, C, N5)
ZMK_UNICODE_PAIR(lin_oe, N0, N0, F, N6, N0, N0, D, N6)
ZMK_UNICODE_PAIR(lin_euro, N2, N0, A, C, N0, N0, B, N0) // euro sign and degree symbol
ZMK_UNICODE_PAIR(lin_multi_o, A, N6, N6, E, F, F, F, D) // multiocular o

// switch to Windows-mode (using WinCompose)
#undef OS_UNICODE_LEAD
#undef OS_UNICODE_TRAIL
#define OS_UNICODE_LEAD &macro_tap &kp RALT &kp U  // WinCompose sequence
#define OS_UNICODE_TRAIL &macro_tap &kp RET

ZMK_UNICODE_PAIR(win_ae, N0, N0, E, N4, N0, N0, C, N4)
ZMK_UNICODE_PAIR(win_ao, N0, N0, E, N5, N0, N0, C, N5)
ZMK_UNICODE_PAIR(win_oe, N0, N0, F, N6, N0, N0, D, N6)
ZMK_UNICODE_PAIR(win_euro, N2, N0, A, C, N0, N0, B, N0) // euro sign and degree symbol
ZMK_UNICODE_PAIR(win_multi_o, A, N6, N6, E, F, F, F, D) // multiocular o


#define BASE 0
#define SYM 1
#define NAV 2
#define META 3
#define TOKI 4
#define GAME 5
#define WINDOWS 6
#define WIN_UNI 7

/ {
	conditional_layers {
		compatible = "zmk,conditional-layers";
		windows_unicode {
			if-layers = <SYM WINDOWS>;
			then-layer = <WIN_UNI>;
		};
		meta_layer {
			if-layers = <SYM NAV>;
			then-layer = <META>;
		};
	};

	combos {
		compatible = "zmk,combos";
		combo_toki_a {
			key-positions = <5>;
			bindings = <&macro_tap &kp SPACE &kp T &kp O &kp K &kp I>;
			slow-release;
			layers = <TOKI>;
		};
	};

	behaviors {
		esctab: shift_esc_tab {
			compatible = "zmk,behavior-mod-morph";
			label = "esc_tab";
			#binding-cells = <0>;
			bindings = <&kp ESC>, <&kp TAB>;
			mods = <(MOD_LSFT)>;
		};
		escape: fancy_esc_key {
			// activate esc-tab macro if not holding ctrl, this allows ctrl-shift-esc but turns shift-esc into tab
			compatible = "zmk,behavior-mod-morph";
			label = "esc";
			#binding-cells = <0>;
			bindings = <&esctab>, <&kp ESC>;
			mods = <(MOD_LCTL)>;
			keep-mods = <(MOD_LCTL)>;
		};
		gqt: global-quick-tap {
			compatible = "zmk,behavior-hold-tap";
			label = "GLOBAL_QUICK_TAP";
			#binding-cells = <2>;
			flavor = "tap-preferred";
			tapping-term-ms = <400>;
			quick-tap-ms = <250>;
			global-quick-tap;
			bindings = <&kp>, <&kp>;
		};
	};

	keymap {
		compatible = "zmk,keymap";
		l_base {
			bindings = <
&escape		&kp W	&kp F	&kp P			&kp B							&kp J	&kp L	&kp U	&kp Y	&kp BACKSPACE
&kp A		&kp R	&kp S	&kp T			&kp G							&kp M	&kp N	&kp E	&kp I	&kp O
&kp LCTRL	&kp X	&kp C	&kp D			&kp V							&kp K	&kp H	&kp Z	&kp Q	&kp LALT
							&gqt LALT SPACE	&kp LSHIFT	&kp LWIN	&mo NAV	&mo SYM	&kp RET
			>;
		};
		// numbers + symbols + non english letters
		l_sym {
			bindings = <
&kp TAB	&kp GRAVE	&kp LBKT	&kp RBKT	&lin_euro							&lin_multi_o	&lin_ao		&lin_ae		&lin_oe	&kp DEL
&kp N1	&kp N2		&kp N3		&kp N4		&kp N5								&kp N6			&kp N7		&kp N8		&kp N9	&kp N0
&trans	&kp SQT		&kp SLASH	&kp BSLH	&kp EQUAL							&kp MINUS		&kp SEMI	&kp COMMA	&kp DOT	&trans
								&trans		&trans		&trans			&trans	&trans			&trans
			>;
		};
		// F keys + navigation
		l_nav {
			bindings = <
&kp F1	&kp F2	&kp F3	&kp F4	&kp F5							&kp PG_UP	&kp HOME	&kp UP		&kp END		&kp PSCRN
&kp F6	&kp F7	&kp F8	&kp F9	&kp F10							&kp PG_DN	&kp LEFT	&kp DOWN	&kp RIGHT	&kp K_CMENU
&trans	&kp F11	&kp F12	&kp F13	&kp F14							&kp F15		&kp F16		&kp F17		&kp F18		&trans
						&trans	&trans	&trans			&trans	&trans		&trans
			>;
		};
		// media + bluetooth + layer toggles + numpad
		l_meta {
			bindings = <
&kp C_VOL_DN	&kp C_VOL_UP	&tog WINDOWS	&tog GAME	&tog TOKI					&kp KP_MULTIPLY	&kp KP_N7	&kp KP_N8	&kp KP_N9	&kp KP_PLUS
&kp C_PREV		&kp C_NEXT		&none			&kp C_PLAY	&none						&kp KP_DIVIDE	&kp KP_N4	&kp KP_N5	&kp KP_N6	&kp KP_N0
&trans			&none			&bt BT_SEL 0	&bt BT_NXT	&bt BT_CLR					&kp KP_DOT		&kp KP_N1	&kp KP_N2	&kp KP_N3	&kp KP_MINUS
								&trans			&trans		&trans				&trans	&trans			&kp KP_ENTER
			>;
		};
		// toki pona steno
		l_toki {
			bindings = <
&trans	&none	&none	&none		&none							&tog TOKI	&none	&none	&none	&none
&kp A	&kp A	&kp A	&kp A		&none							&none		&kp A	&kp A	&kp A	&kp A
&trans	&none	&none	&none		&none							&none		&none	&none	&none	&trans
						&kp SPACE	&trans	&trans			&none	&none		&trans
			>;
		};
		// game compatibility / half qwerty
		l_game {
			bindings = <
&kp ESC		&kp Q	&kp W	&kp E		&kp R									&none	&none		&kp UP		&none		&kp BSPC
&kp LSHFT	&kp A	&kp S	&kp D		&kp F									&none	&kp LEFT	&kp DOWN	&kp RIGHT	&none
&kp LCTRL	&kp Z	&kp X	&kp C		&kp V									&none	&none		&none		&none		&none
							&kp LALT	&kp SPACE	&tog GAME		&tog GAME	&none	&kp RET
			>;
		};
		// dummy layer for enabling windows unicode macros
		l_windows {
			bindings = <
&trans	&trans	&trans	&trans	&trans						&trans	&trans	&trans	&trans	&trans
&trans	&trans	&trans	&trans	&trans						&trans	&trans	&trans	&trans	&trans
&trans	&trans	&trans	&trans	&trans						&trans	&trans	&trans	&trans	&trans
						&trans	&trans	&trans		&trans	&trans	&trans
			>;
		};
		// unicode macros for symbol layer in windows mode
		l_win_unicode {
			bindings = <
&trans	&trans	&trans	&trans	&win_euro					&win_multi_o	&win_ao	&win_ae	&win_oe	&trans
&trans	&trans	&trans	&trans	&trans						&trans			&trans	&trans	&trans	&trans
&trans	&trans	&trans	&trans	&trans						&trans			&trans	&trans	&trans	&trans
						&trans	&trans	&trans		&trans	&trans			&trans
			>;
		};
	};
};