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

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

#include <dt-bindings/zmk/outputs.h>

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

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

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


/ {

    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(q, &kp Q, 1 2, DEF_L)
        COMBO(z, &kp Z, 20 21, DEF_L)
        COMBO(forward_slash, &kp FSLH, 19 20, DEF_L)

        /* Brackets */
        COMBO(left_bracket, &kp LBKT, 0 9, DEF_L SYM_L NUM_L)
        COMBO(right_bracket, &kp RBKT, 7 16, DEF_L SYM_L NUM_L)
        COMBO(left_parenthesis, &kp LPAR, 1 10, DEF_L SYM_L NUM_L)
        COMBO(right_parenthesis, &kp RPAR, 6 15, DEF_L SYM_L NUM_L)
        COMBO(left_brace, &kp LBRC, 2 11, DEF_L SYM_L NUM_L)
        COMBO(right_brace, &kp RBRC, 5 14, DEF_L SYM_L NUM_L)
        COMBO(less_than, &kp LT, 3 12, DEF_L SYM_L NUM_L)
        COMBO(grather_than, &kp GT, 4 13, DEF_L SYM_L NUM_L)

        /* Convenience */
        COMBO(lshift, &sk LSHFT, 9 10, DEF_L)
        COMBO(rshift, &sk RSHFT, 15 16, DEF_L)
        COMBO(quote, &kp DQT, 6 7, DEF_L)
        COMBO(del_word, &kp LC(BSPC), 22 24, DEF_L)
        COMBO(caps_lock, &kp CAPS, 0 7, DEF_L)
        COMBO(caps_word, &caps_word, 1 6, DEF_L)
        COMBO(esc, &kp ESC, 9 19, DEF_L)
        COMBO(ent, &kp ENTER, 16 24, DEF_L)
        COMBO(stab, &kp LS(TAB), 10 11, DEF_L)
        COMBO(tab, &kp TAB, 14 15, DEF_L)

        COMBO(select_all, &kp LC(A), 19 20, NAV_L)


    };


    keymap {
        compatible = "zmk,keymap";

        default_layer {
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
                           &kp C         &kp G         &kp D         &kp K             &kp J         &kp L         &kp U         &kp Y
             &kp R         &kp S         &kp T         &kp H         &kp P             &kp V         &kp N         &kp A         &kp I         &kp O
             &kp X         &kp B         &kp W         &kp F                                         &kp M         &kp COMMA     &kp DOT       &kp SQT
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &sl NAV_L     &kp SPACE         &lt NUM_L E   &sl SYM_L
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────╯

            >;
        };

        nav_layer {
            label = "Nav";
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
                           &none         &kp LC(O)     &kp HOME      &kp LS(LA(UARW)) &kp PG_UP      &kp HOME      &kp UARW      &kp END
             &sk LGUI      &sk LALT      &sk LCTRL     &sk LSHFT     &kp LS(LA(DARW)) &kp PG_DN      &kp LARW      &kp DARW      &kp UARW      &kp INS
             &kp LC(Z)     &kp LC(X)     &kp LC(C)     &kp LC(V)                                     &none         &kp LS(TAB)   &key_repeat   &kp DEL
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &trans        &trans            &kp BSPC      &kp DEL
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────╯
            >;
        };

        sym_layer {
            label = "Sym";
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
                           &kp AMPS      &kp ASTRK     &kp BSLH      &kp PLUS          &none         &none         &none         &none
             &kp COLON     &kp DLLR      &kp PRCNT     &kp CARET     &kp EQUAL         &none         &sk LSHFT     &sk LCTRL     &sk LALT      &sk LGUI
             &kp SEMI      &kp EXCL      &kp AT        &kp POUND                                     &kp LT        &kp PIPE      &kp GT        &none
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &kp UNDER     &kp MINUS         &trans        &trans
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────╯
            >;
        };

        num_layer {
            label = "Num";
            bindings = <
        // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮   ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
                           &kp N7        &kp N4        &kp N3        &kp PLUS             &kp K         &kp W         &kp B         &kp G
             &kp GRAVE     &kp N2        &kp N1        &kp N0        &kp EQUAL            &kp J         &sk LSHFT     &sk LCTRL     &sk LALT      &sk LGUI
             &kp TILDE     &kp N8        &kp N6        &kp N5                                           &kp D         &none         &none         &kp Y
        // ╰─────────────┴─────────────┴─────────────╮                                                           ╭─────────────┴─────────────┴─────────────╯
                                                       &kp N9        &kp MINUS         &trans        &trans
        //                                           ╰─────────────┴─────────────╯   ╰─────────────┴─────────────
            >;
        };

    };
};