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

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

/* Layers */
#define DEF_L 0
#define NAV_L 1
#define UPP_L 2
#define SYM_L 3
#define NUM_L 4

/* Behavior Settings */
&caps_word {
  continue-list = <UNDERSCORE MINUS BACKSPACE>;
};

&sk {
  release-after-ms = <60000>;
};

/ {
    behaviors {
        // A hold-tap that activates without delay (like `&mo`)
        mo_tap: mo_with_tap {
          compatible = "zmk,behavior-hold-tap";
          label = "MO_WITH_TAP";
          #binding-cells = <2>;
          tapping_term_ms = <0>;
          retro-tap;
          flavor = "hold-preferred";
          bindings = <&mo>, <&kp>;
        };
        
        #define MO(LAYER) &mo_tap LAYER F24
        
        hm: homerow_mods {
            compatible = "zmk,behavior-hold-tap";
            label = "HOMEROW_MODS";
            #binding-cells = <2>;
            tapping-term-ms = <150>;
            quick-tap-ms = <0>;
            flavor = "tap-preferred";
            bindings = <&kp>, <&kp>;
        };
    };

    combos {
        compatible = "zmk,combos";

        #define COMBO(NAME, BINDINGS, KEYPOS, LAYERS) \
          combo_##NAME { \
            bindings = <BINDINGS>; \
            key-positions = <KEYPOS>; \
            layers = <LAYERS>; \
          };

        /*                KEY POSITIONS

          ╭────────────────────╮ ╭────────────────────╮
          │  0   1   2   3   4 │ │  5   6   7   8   9 │
          │ 10  11  12  13  14 │ │ 15  16  17  18  19 │
          │     20  21  22     │ │     23  24  25     │
          ╰───────────╮ 26  27 │ │ 28  29 ╭───────────╯
                      ╰────────╯ ╰────────╯            */

         /* Letters */
        COMBO(lower_v, &kp V, 1 2, DEF_L)
        COMBO(lower_x, &kp X, 1 3, DEF_L)
        COMBO(lower_z, &kp Z, 20 21, DEF_L)
        COMBO(forward_slash, &kp FSLH, 2 3, DEF_L)
        COMBO(upper_v, &kp LS(V), 1 2, UPP_L)
        COMBO(upper_x, &kp LS(X), 1 3, UPP_L)
        COMBO(upper_z, &kp LS(Z), 20 21, UPP_L)
        COMBO(question_mark, &kp LS(FSLH), 2 3, UPP_L)
        
        /* Brackets */
        COMBO(left_bracket, &kp LBKT, 1 11, DEF_L UPP_L SYM_L NUM_L)
        COMBO(right_bracket, &kp RBKT, 8 18, DEF_L UPP_L SYM_L NUM_L)
        COMBO(left_parenthesis, &kp LPAR, 2 12, DEF_L UPP_L SYM_L NUM_L)
        COMBO(right_parenthesis, &kp RPAR, 7 17, DEF_L UPP_L SYM_L NUM_L)
        COMBO(left_brace, &kp LBRC, 3 13, DEF_L UPP_L SYM_L NUM_L)
        COMBO(right_brace, &kp RBRC, 6 16, DEF_L UPP_L SYM_L NUM_L)

        /* Convenience */
        COMBO(esc, &kp ESC, 3 4, DEF_L)
        COMBO(del, &kp DEL, 13 14, DEF_L)
        COMBO(select_all, &kp LC(A), 5 6, NAV_L)
    };


    keymap {
        compatible = "zmk,keymap";

        default_layer {
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
             &kp J         &kp P         &kp U         &kp O         &kp K             &kp B         &kp D         &kp R         &kp F         &kp Q
             &hm LGUI W    &hm LALT I    &hm LCTRL E   &hm LSHFT A   &kp DOT           &kp G         &hm RSHFT T   &hm RCTRL N   &hm LALT S    &hm RGUI H
                           &hm RALT Y    &kp QUOT      &kp COMMA                                     &kp M         &kp L         &hm RALT C
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &lt NAV_L SPACE     &kp TAB    &lt SYM_L ENTER    &lt NUM_L BSPC 
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────╯
               
            >;
        };

        nav_layer {
            label = "Nav";
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
             &kp F1        &kp F2        &kp F3        &kp F4        &kp F5            &kp K_REDO   &kp K_PASTE   &kp K_COPY    &kp K_CUT     &kp K_UNDO
             &sk LGUI      &sk LALT      &sk LSHFT     &sk LCTRL     &kp LC(Z)         &kp CAPS     &kp LARW      &kp DARW      &kp UARW      &kp RARW
                           &kp LC(X)     &kp LC(C)     &kp LC(V)                                    &kp HOME      &kp PG_DN     &kp PG_UP
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &trans        &trans            &kp ENTER     &kp BSPC
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────╯
            >;
        };

        upper_layer {
            label = "Upp";
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
             &kp LS(W)     &kp LS(F)     &kp LS(M)     &kp LS(P)     &kp LS(G)         &kp LS(K)     &kp LS(U)     &kp LS(O)     &kp LS(Y)     &kp DQT
             &kp LS(R)     &kp LS(S)     &kp LS(N)     &kp LS(T)     &kp LS(B)         &kp LS(J)     &kp LS(A)     &kp LS(E)     &kp LS(I)     &kp LS(H)
                           &kp LS(C)     &kp LS(L)     &kp LS(D)                                     &kp LS(X)     &kp LT        &kp GT
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &trans        &kp LS(SPACE)     &trans        &trans
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────╯
            >;
        };

        sym_layer {
            label = "Sym";
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
             &kp COLON     &kp AMPS     &kp STAR      &kp LPAR      &kp PLUS           &kp CARET     &kp AMPS      &kp SEMI      &kp COLON     &kp DQT
             &kp TILDE     &kp DLLR     &kp PRCNT     &kp CARET     &kp PIPE           &kp BSLH      &sk LCTRL     &sk LSHFT     &sk LALT      &sk LGUI
                           &kp EXCL     &kp AT        &kp POUND                                      &kp PIPE      &kp LT        &kp GT
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &trans        &kp UNDER         &trans        &trans
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────╯
            >;
        };

        num_layer {
            label = "Num";
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
             &kp SEMI      &kp N7        &kp N8        &kp N9        &kp EQUAL         &kp F6        &kp F7        &kp F8        &kp F9        &kp F10
             &kp GRAVE     &kp N4        &kp N5        &kp N6        &kp BSLH          &kp F11       &sk LCTRL     &sk LSHFT     &sk LALT      &sk LGUI
                           &kp N1        &kp N2        &kp N3                                        &kp F12       &kp COMMA     &kp DOT
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &kp N0        &kp MINUS            &trans        &trans
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────╯
            >;
        };
    };
};