// -*- mode: dts-mode; tab-width: 2 -*-
// Loosely based on https://github.com/urob/zmk-config/tree/main/config
#include <behaviors.dtsi>
#include <dt-bindings/zmk/keys.h>
#include <dt-bindings/zmk/bt.h>
#include <dt-bindings/zmk/mouse.h>

#define COMBO_TIMEOUT_MS 25

#define DV     0
#define QW     1
#define GAMING 2
#define COLEMAK 3
#define GRAPHITE 4
#define LOW    5
#define UPR    6
#define NAV    7
#define MOUSE  8
#define QVLOW  9
#define GAMELOW 10
#define FN     11

#define SPACEKEY &layer_mo NAV SPACE

#define HL1(k) hm_left LGUI  k
#define HL2(k) hm_left LALT  k
#define HL3(k) hm_left LCTL  k
#define HL4(k) hm_left LSHFT k
#define HR1(k) hm_right LGUI  k
#define HR2(k) hm_right LALT  k
#define HR3(k) hm_right LCTL  k
#define HR4(k) hm_right LSHFT k

#include "extra_keys.h"

/ {
  behaviors {
    hm_left: homerow_modifiers_left {
      compatible = "zmk,behavior-hold-tap";
      flavor = "balanced";
      #binding-cells = <2>;
      tapping-term-ms = <280>;
      quick-tap-ms = <175>;
      require-prior-idle-ms = <150>;
      bindings = <&kp>, <&kp>;
      hold-trigger-key-positions = <RIGHT_KEYS THUMBS>;
      hold-trigger-on-release;
    };
    hm_right: homerow_modifiers_right {
      compatible = "zmk,behavior-hold-tap";
      flavor = "balanced";
      #binding-cells = <2>;
      tapping-term-ms = <280>;
      quick-tap-ms = <175>;
      require-prior-idle-ms = <150>;
      bindings = <&kp>, <&kp>;
      hold-trigger-key-positions = <LEFT_KEYS THUMBS>;
      hold-trigger-on-release;
    };
    layer_mo: layer_modifiers {
      compatible = "zmk,behavior-hold-tap";
      flavor = "balanced";
      #binding-cells = <2>;
      tapping-term-ms = <280>;
      quick-tap-ms = <175>;
      require-prior-idle-ms = <150>;
      bindings = <&mo>, <&kp>;
      hold-trigger-on-release;
    };
  };

  /* combos { */
    /*   compatible = "zmk,combos"; */

    /*   combo_q_c_x { */
      /*     timeout-ms = <COMBO_TIMEOUT_MS>; */
      /*     require-prior-idle-ms = <100>; */
      /*     key-positions = <LM1 LM2>; */
      /*     layers = <QW>; */
      /*     bindings = <&hm_left LS(LCTRL) LC(B)>; */
    /*   }; */

    /*   combo_q_c_c { */
      /*     timeout-ms = <COMBO_TIMEOUT_MS>; */
      /*     require-prior-idle-ms = <100>; */
      /*     key-positions = <LM3 LM2>; */
      /*     layers = <QW>; */
      /*     bindings = <&hm_left LA(LCTRL) LC(I)>; */
    /*   }; */

    /*   combo_d_c_x { */
      /*     timeout-ms = <COMBO_TIMEOUT_MS>; */
      /*     require-prior-idle-ms = <100>; */
      /*     key-positions = <LM1 LM2>; */
      /*     layers = <DV>; */
      /*     bindings = <&hm_left LS(LCTRL) LC(X)>; */
    /*   }; */

    /*   combo_d_c_c { */
      /*     timeout-ms = <COMBO_TIMEOUT_MS>; */
      /*     require-prior-idle-ms = <100>; */
      /*     key-positions = <LM3 LM2>; */
      /*     layers = <DV>; */
      /*     bindings = <&hm_left LA(LCTRL) LC(C)>; */
    /*   }; */

    /*   combo_tab { */
      /*     timeout-ms = <COMBO_TIMEOUT_MS>; */
      /*     require-prior-idle-ms = <100>; */
      /*     key-positions = <LT3 LT2>; */
      /*     layers = <DV QW LOW UPR QVLOW>; */
      /*     bindings = <&kp TAB>; */
    /*   }; */

    /*   combo_ret { */
      /*     timeout-ms = <COMBO_TIMEOUT_MS>; */
      /*     require-prior-idle-ms = <100>; */
      /*     key-positions = <RM1 RM2>; */
      /*     layers = <DV QW LOW UPR QVLOW>; */
      /*     bindings = <&hm_right LS(LCTRL) RET>; */
    /*   }; */

    /*   combo_bspc { */
      /*     timeout-ms = <COMBO_TIMEOUT_MS>; */
      /*     require-prior-idle-ms = <100>; */
      /*     key-positions = <RT1 RT2>; */
      /*     layers = <DV QW LOW UPR QVLOW>; */
      /*     bindings = <&kp BSPC>; */
    /*   }; */
    /*   combo_del { */
      /*     timeout-ms = <COMBO_TIMEOUT_MS>; */
      /*     require-prior-idle-ms = <100>; */
      /*     key-positions = <RT2 RT3>; */
      /*     layers = <DV QW LOW UPR QVLOW>; */
      /*     bindings = <&kp DEL>; */
    /*   }; */
  /* } ; */

  conditional_layers {
    compatible = "zmk,conditional-layers";
    fn_layer {
      if-layers = <LOW UPR>;
      then-layer = <FN>;
    };
    qwlow_layer {
      if-layers = <QW LOW>;
      then-layer = <QVLOW>;
    };
    gamelow_layer {
      if-layers = <GAMING LOW>;
      then-layer = <GAMELOW>;
    };
  };

  keymap {
    compatible = "zmk,keymap";

    default_layer {
      display-name = "Dvorak";
      // DV - Dvorak layer
      bindings = <
      R1X  &kp SQT     &kp COMMA &kp DOT  &kp P    &kp Y    R1Y &kp F  &kp G    &kp C    &kp R    &kp L R1Z
      R2X  &HL1(A)     &HL2(O)   &HL3(E)  &HL4(U)  &kp I    R2Y &kp D  &HR4(H)  &HR3(T)  &HR2(N)  &HR1(S) R2Z
      R3X  &kp SEMI    &kp Q     &kp   J  &kp K    &kp X    R3Y &kp B  &kp M    &kp W    &kp V    &kp Z R3Z
      R4X  &mo LOW &kp LSHIFT R4Y SPACEKEY &mo UPR R4Z
      >;
    };

    dvorak_layer {
      display-name = "Qwerty";
      // This is a "QWERTY" keymap, but it's really intended to be used in dvorak mode
      // (with setxkbmap us -variant dvorak -option compose:ralt).
      bindings = <
      R1X  &kp Q       &kp W    &kp E          &kp R    &kp T  R1Y &kp Y  &kp U    &kp I      &kp O    &kp P    R1Z
      R2X  &HL1(A)     &HL2(S)  &HL3(D)        &HL4(F)  &kp G  R2Y &kp H  &HR4(J)  &HR3(K)    &HR2(L)  &HR1(SEMI) R2Z
      R3X  &kp Z       &kp X    &kp C          &kp V    &kp B  R3Y &kp N  &kp M    &kp COMMA  &kp DOT  &kp SLASH  R3Z
      R4X  &mo LOW &kp LSHIFT R4Y SPACEKEY &mo UPR R4Z
      >;
    };

    gaming_layer {
      display-name = "Gaming";
      bindings = <
      R1X  &kp Q  &kp W  &kp E  &kp R  &kp T R1Y  &kp Y  &kp U  &kp I      &kp O    &kp P    R1Z
      R2X  &kp A  &kp S  &kp D  &kp F  &kp G R2Y  &kp H  &kp J  &kp K      &kp L    &kp SEMI R2Z
      R3X  &kp Z  &kp X  &kp C  &kp V  &kp B R3Y  &kp N  &kp M  &kp COMMA  &kp DOT  &kp SLASH  R3Z
      R4X  &mo LOW &kp LSHIFT R4Y SPACEKEY &mo UPR R4Z
      >;
    };

    colemak_layer {
      display-name = "Colemak";
      bindings = <
      R1X  &kp Q  &kp W  &kp F  &kp P  &kp B R1Y  &kp J  &kp L  &kp U      &kp Y    &kp SEMI    R1Z
      R2X  &kp A  &kp R  &kp S  &kp T  &kp G R2Y  &kp M  &kp N  &kp E      &kp I    &kp O R2Z
      R3X  &kp Z  &kp X  &kp C  &kp D  &kp V R3Y  &kp K  &kp H  &kp COMMA  &kp DOT  &kp SQT  R3Z
      R4X  &mo LOW &kp LSHIFT R4Y SPACEKEY &mo UPR R4Z
      >;
    };

    graphite_layer {
      display-name = "Graphite";
      bindings = <
      R1X  &kp B    &kp L    &kp D    &kp W    &kp Z R1Y  &kp SQT  &kp F    &kp O    &kp U      &kp J    R1Z
      R2X  &HL1(N)  &HL2(R)  &HL3(T)  &HL4(S)  &kp G R2Y  &kp Y    &HL4(H)  &HL3(A)  &HL2(E)    &HL1(I)  R2Z
      R3X  &kp Q    &kp X    &kp M    &kp C    &kp V R3Y  &kp K    &kp P    &kp DOT  &kp MINUS  &kp FSLH R3Z
      R4X &mo LOW SPACEKEY R4Y &kp LSHIFT &mo UPR R4Z
      >;
    };

    lower_layer {
      display-name = "lower";
      bindings = <
      R1X  &kp EXCL   &kp AT     &kp HASH  &kp DLLR   &kp PRCNT R1Y  &kp CARET  &kp AMPS   &kp STAR   &kp LPAR  &kp RPAR    R1Z
      R2X  &kp LGUI   &kp LALT   &kp LCTL  &kp LSHFT  &kp BSLH  R2Y  &kp FSLH   &kp UNDER  &kp PLUS   &kp LBRC  &kp RBRC    R2Z
      R3X  &kp GRAVE  &kp TILDE  &kp TAB   &kp ESC    &kp PIPE  R3Y  &kp QMARK  &kp MINUS  &kp EQUAL  &kp LBKT  &kp RBKT R3Z
      R4X &trans &trans SPACEKEY R4Y &trans &trans R4Z
      >;
    };

    raise_layer {
      display-name = "raise";
      bindings = <
      R1X  &kp N1  &kp N2  &kp N3  &kp N4  &kp N5 R1Y  &kp N6    &kp N7     &kp N8    &kp N9    &kp N0 R1Z
      R2X  &trans  &trans  &trans  &trans  &trans R2Y  &kp BSPC  &kp LSHFT  &kp LCTL  &kp LALT  &kp LGUI R2Z
      R3X  &trans  &trans  &trans  &trans  &trans R3Y  &kp RALT  &kp RET    &kp DEL   &trans    &trans R3Z

      R4X &trans &trans SPACEKEY R4Y TX &trans &trans R4Z
      >;
    };

    navigation_layer {
      display-name = "nav";
      bindings = <
      R1X  &mkp MB4  &mkp MB3  &mkp MB2  &mkp MB1  &trans R1Y  &trans  &trans    &trans     &trans     &trans R1Z
      R2X  &trans    &trans    &trans    &trans    &trans R2Y  &trans  &kp LEFT  &kp DOWN   &kp UP     &kp RIGHT R2Z
      R3X  &trans    &trans    &trans    &trans    &trans R3Y  &trans  &kp HOME  &kp PG_DN  &kp PG_UP  &kp END R3Z

      R4X &trans &trans SPACEKEY R4Y TX &trans &trans R4Z
      >;
    };

    mouse_layer {
      // Waiting for https://github.com/zmkfirmware/zmk/pull/778
		  // Using fork at https://github.com/ftc/zmk/blob/mouse-ftc
      display-name = "mouse";
      bindings = <
      R1X  &trans    &trans    &trans    &trans    &trans R1Y  &trans  &trans    &trans    &trans  &trans R1Z
      R2X  &mkp MB4  &mkp MB3  &mkp MB2  &mkp MB1  &trans R2Y  &trans  &kp LEFT  &kp DOWN  &kp UP  &kp RIGHT R2Z
      R3X  &trans    &trans    &trans    &trans    &trans R3Y  &trans  &trans    &trans    &trans  &trans R3Z

      R4X &trans &trans SPACEKEY R4Y TX &trans &trans R4Z
      >;
    };

    qwerty_lower_layer {
      display-name = "lower";
      bindings = <
      R1X  &kp EXCL   &kp AT    &kp HASH  &kp DLLR   &kp PRCNT R1Y  &kp CARET  &kp AMPS  &kp STAR  &kp LPAR   &kp RPAR R1Z
      R2X  &kp LGUI   &kp LALT   &kp LCTL  &kp LSHFT  &kp BSLH  R2Y  &kp LBKT   &kp DQT   &kp RBRC  &kp UNDER  &kp PLUS R2Z
      R3X  &kp GRAVE  &kp TILDE  &kp TAB   &kp ESC    &kp PIPE  R3Y  &kp LBRC   &kp SQT   &kp RBKT  &kp MINUS  &kp EQUAL R3Z
      R4X &trans &trans SPACEKEY R4Y TX &trans &trans R4Z
      >;
    };

    gaming_lower_layer {
      display-name = "gaming";
      bindings = <
      R1X  &kp N1  &kp N2  &kp N3  &kp N4  &kp N9 R1Y  &trans  &trans  &trans  &trans  &trans R1Z
      R2X  &kp N5  &kp N6  &kp N7  &kp N8  &kp N0 R2Y  &trans  &trans  &trans  &trans  &trans R2Z
      R3X  &trans  &trans  &trans  &trans  &trans R3Y  &trans  &trans  &trans  &trans  &trans R3Z
      R4X &trans &trans SPACEKEY R4Y TX &trans &trans R4Z
      >;
    };

    // TODO: Add gaming layer.
    function_layer {
      display-name = "fn";
      bindings = <
      R1X  &kp F1   &kp F2   &kp F3      &kp F4  &kp F5 R1Y  &kp F6  &kp F7  &kp F8  &kp F9  &kp F10 R1Z
      R2X  &kp F11  &kp F12  &trans &to DV  &to QW R2Y  &to COLEMAK &to GRAPHITE &trans  &trans  &trans R2Z
      R3X FUNC_KEYS R3Z
      R4X &trans &trans SPACEKEY R4Y TX &trans &trans R4Z
      >;
    };

  };
};