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

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

#define QUICK_TAP_MS 125
#define TAPPING_TERM_MS 150
#define SLOW_TAPPING_TERM_MS 350
#define IDLE_TIMEOUT_MS 5000
#define REQ_IDLE_MS 150

&lt {
    // Layer toggle

    flavor = "tap-preferred";
    tapping-term-ms = <TAPPING_TERM_MS>;
    quick-tap-ms = <QUICK_TAP_MS>;
};

&sk {
    // Sticky keys settings, One Shot Keys [QMK]

    release-after-ms = <IDLE_TIMEOUT_MS>;
    quick-release;
};

&caps_word {
    // Allow caps word to continue even when minus or underscore are pressed.
    // Also prevent mod presses from cancelling caps word.

    continue-list = <
      UNDERSCORE MINUS
      LCTRL LALT LGUI LSHFT
      RCTRL RALT RGUI RSHFT
      BACKSPACE
    >;

    /delete-property/ ignore-modifiers;
};

/ {
    behaviors {
        hml: homerow_mods_left {
            compatible = "zmk,behavior-hold-tap";
            label = "HOMEROW_MODS_LEFT_HAND";
            bindings = <&kp>, <&kp>;

            #binding-cells = <2>;
            tapping-term-ms = <TAPPING_TERM_MS>;
            quick-tap-ms = <QUICK_TAP_MS>;
            flavor = "balanced";
            require-prior-idle-ms = <REQ_IDLE_MS>;
            hold-trigger-key-positions = <5 6 7 8 9 19 18 17 16 15 34 25 26 35 27 28 29 37 36>;
            hold-trigger-on-release;
        };
        hmr: homerow_mods_right {
            compatible = "zmk,behavior-hold-tap";
            label = "HOMEROW_MODS_RIGHT_HAND";
            bindings = <&kp>, <&kp>;

            #binding-cells = <2>;
            tapping-term-ms = <TAPPING_TERM_MS>;
            quick-tap-ms = <QUICK_TAP_MS>;
            require-prior-idle-ms = <REQ_IDLE_MS>;
            hold-trigger-key-positions = <0 1 2 3 4 14 13 12 11 10 11 12 13 14 20 21 22 23 24 30 31 32 33>;
            flavor = "balanced";
            hold-trigger-on-release;
        };
        ss_cw: shift_capsword {
            compatible = "zmk,behavior-tap-dance";
            label = "SHIFT_CAPSWORD";
            #binding-cells = <0>;
            bindings = <&sk LEFT_SHIFT>, <&caps_word>;

            tapping-term-ms = <SLOW_TAPPING_TERM_MS>;
        };
        cln_scln_td: cln_scln_td {
            compatible = "zmk,behavior-tap-dance";
            label = "CLN_SCLN_TD";
            #binding-cells = <0>;
            bindings = <&kp COLON>, <&kp SEMICOLON>;
        };
    };

    keymap {
        compatible = "zmk,keymap";

        base {
            bindings = <
&kp Q            &kp W            &kp F                &kp P              &kp G   &kp J      &kp L               &kp U                 &kp Y             &kp APOSTROPHE
&hml LEFT_GUI A  &hml LEFT_ALT R  &hml LEFT_CONTROL S  &hml LEFT_SHIFT T  &kp D   &kp H      &hmr RIGHT_SHIFT N  &hmr RIGHT_CONTROL E  &hmr RIGHT_ALT I  &hmr RIGHT_GUI O
&kp Z            &kp X            &kp C                &kp V              &kp B   &kp K      &kp M               &kp COMMA             &kp PERIOD        &kp SLASH
                 &trans           &kp ESCAPE           &lt 3 SPACE        &ss_cw  &kp ENTER  &lt 1 BACKSPACE     &lt 2 DELETE          &kp RIGHT_ALT
            >;

            sensor-bindings =
                <&inc_dec_kp C_VOL_UP C_VOLUME_DOWN>,
                <&inc_dec_kp PAGE_UP PAGE_DOWN>;
        };

        num_fun {
            bindings = <
&none  &kp N7    &kp N8     &kp N9  &none      &kp C_PREV  &kp F7  &kp F8  &kp F9  &kp F12
&none  &kp N4    &kp N5     &kp N6  &none      &kp C_PP    &kp F4  &kp F5  &kp F6  &none
&none  &kp N1    &kp N2     &kp N3  &kp DOT    &kp C_NEXT  &kp F1  &kp F2  &kp F3  &none
       &kp PLUS  &kp EQUAL  &kp N0  &kp MINUS  &trans      &trans  &trans  &trans
            >;

            sensor-bindings = <&inc_dec_kp K_REDO K_UNDO>;
        };

        sym_uti {
            bindings = <
&kp PERCENT  &kp CARET      &kp DOLLAR       &kp RA(N5)  &cln_scln_td    &none   &kp LEFT_BRACE        &kp RIGHT_BRACE        &kp AT_SIGN    &kp HASH
&kp FSLH     &kp ASTERISK   &kp MINUS        &kp PLUS    &kp PIPE        &none   &kp LEFT_PARENTHESIS  &kp RIGHT_PARENTHESIS  &kp LESS_THAN  &kp GREATER_THAN
&kp BSLH     &kp AMPERSAND  &kp EXCLAMATION  &kp EQUAL   &kp UNDERSCORE  &none   &kp LBKT              &kp RBKT               &kp TILDE      &kp GRAVE
             &trans         &trans           &trans      &trans          &trans  &trans                &trans                 &trans
            >;

            sensor-bindings = <&inc_dec_kp LC(RIGHT) LC(LEFT)>;
        };

        nav_sys {
            bindings = <
&none      &kp LS(TAB)  &kp TAB     &kp LC(LS(TAB))  &kp LC(TAB)    &kp PG_UP  &kp H     &kp J       &kp K        &kp L
&kp LC(A)  &none        &none       &none            &none          &kp PG_DN  &kp LEFT  &kp DOWN    &kp UP       &kp RIGHT
&kp LC(Z)  &kp LC(X)    &kp LC(C)   &kp LC(V)        &kp LS(LC(V))  &none      &none     &none       &none        &none
           &bootloader  &sys_reset  &trans           &tog 4         &trans     &trans    &sys_reset  &bootloader
            >;
        };

        flat {
            bindings = <
&kp Q  &kp W    &kp F    &kp P      &kp G      &kp J      &kp L     &kp U      &kp Y    &kp APOSTROPHE
&kp A  &kp R    &kp S    &kp T      &kp D      &kp H      &kp N     &kp E      &kp I    &kp O
&kp Z  &kp X    &kp C    &kp V      &kp B      &kp K      &kp M     &kp COMMA  &kp DOT  &kp FSLH
       &kp TAB  &kp ESC  &kp SPACE  &kp LSHFT  &kp ENTER  &kp BSPC  &kp TAB    &tog 4
            >;
        };

        sensor-bindings = <&inc_dec_kp C_VOLUME_UP C_VOLUME_DOWN>;
    };
};