@use 'iro-sass/src/index' as iro;
@use '../functions' as fn;

@include iro.props-namespace('switch') {
    @include iro.props-store((
        --dims: (
            --width:        iro.fn-px-to-rem(26px),
            --height:       iro.fn-px-to-rem(15px),
            --label-gap:    .6rem,
            --border-width: fn.global-dim(--border-width --medium),
            --pad-x:        .3rem,
            --pad-y:        .3rem,
            --margin-right: fn.global-dim(--spacing --x --md),
        ),
    ), 'dims');

    @include iro.props-store((
        --colors: (
            --track-bg:      fn.global-color(--obj),
            --handle-border: fn.global-color(--fg-hi),
            --handle-bg:     fn.global-color(--bg-hi),
    
            --hover: (
                --label:         fn.global-color(--fg-lo),
                --handle-border: fn.global-color(--fg),
            ),
            --accent: (
                --handle-border: fn.global-color(--accent --primary),
    
                --hover: (
                    --handle-border: fn.global-color(--accent --primary-lo),
                ),
            ),
            --key-focus: (
                --label:         fn.global-color(--focus --text),
                --track-bg:      fn.global-color(--focus --fill),
                --handle-border: fn.global-color(--focus --fill),
                --shadow:        fn.global-color(--focus --shadow),
            ),
            --disabled: (
                --label:         fn.global-color(--fg-hi3),
                --track-bg:      fn.global-color(--obj),
                --handle-border: fn.global-color(--obj-lo),
                --handle-bg:     fn.global-color(--bg-hi),
            )
        ),
    ), 'colors');

    @include iro.bem-object(iro.props-namespace()) {
        display:      inline-flex;
        position:     relative;
        align-items:  flex-start;
        margin-right: calc(-1 * fn.dim(--pad-x) + fn.dim(--margin-right));
        margin-left:  calc(-1 * fn.dim(--pad-x));
        padding:      fn.dim(--pad-y) fn.dim(--pad-x);
    
        @include iro.bem-elem('indicator') {
            display:          block;
            position:         relative;
            box-sizing:       border-box;
            flex:             0 0 auto;
            width:            fn.dim(--width);
            height:           fn.dim(--height);
            margin-top:       calc(.5 * (fn.global-dim(--font --standard --line-height) * 1em - fn.dim(--height)));
            transition:       background-color .2s ease;
            border-radius:    2em;
            background-color: fn.color(--track-bg);
    
            &::after {
                content:          '';
                display:          block;
                position:         absolute;
                z-index:          10;
                top:              50%;
                left:             0;
                width:            calc(fn.dim(--height) - 2 * fn.dim(--border-width));
                height:           calc(fn.dim(--height) - 2 * fn.dim(--border-width));
                transform:        translateY(-50%);
                transition:       left .2s ease;
                border:           fn.dim(--border-width) solid fn.color(--handle-border);
                border-radius:    fn.dim(--width);
                background-color: fn.color(--handle-bg);
            }
        }
    
        @include iro.bem-elem('label') {
            align-self:  baseline;
            margin-left: fn.dim(--label-gap);
        }
    
        @include iro.bem-elem('native') {
            position: absolute;
            top:      0;
            left:     0;
            width:    100%;
            height:   100%;
            margin:   0;
            padding:  0;
            overflow: hidden;
            opacity:  .0001;
    
            &:hover {
                @include iro.bem-sibling-elem('label') {
                    color: fn.color(--hover --label);
                }
    
                @include iro.bem-sibling-elem('indicator') {
                    &::after {
                        border-color: fn.color(--hover --handle-border);
                    }
                }
            }
    
            &:checked {
                @include iro.bem-sibling-elem('indicator') {
                    background-color: fn.color(--handle-border);
    
                    &::after {
                        left:         calc(fn.dim(--width) - fn.dim(--height) + .5px);
                        border-color: fn.color(--handle-border);
                    }
                }
    
                &:hover {
                    @include iro.bem-sibling-elem('indicator') {
                        background-color: fn.color(--hover --handle-border);

                        &::after {
                            border-color: fn.color(--hover --handle-border);
                        }
                    }
                }
            }
    
            &:disabled {
                @include iro.bem-sibling-elem('label') {
                    color: fn.color(--disabled --label);
                }
    
                @include iro.bem-sibling-elem('indicator') {
                    background-color: fn.color(--disabled --track-bg);
    
                    &::after {
                        border-color:     fn.color(--disabled --handle-border);
                        background-color: fn.color(--disabled --handle-bg);
                    }
                }
    
                &:checked {
                    @include iro.bem-sibling-elem('indicator') {
                        background-color: fn.color(--disabled --handle-border);
    
                        &::after {
                            border-color: fn.color(--disabled --handle-border);
                        }
                    }
                }
            }
    
            @include iro.bem-at-theme('keyboard') {
                &:focus {
                    @include iro.bem-sibling-elem('label') {
                        color: fn.color(--key-focus --label);
                    }
    
                    @include iro.bem-sibling-elem('indicator') {
                        &::after {
                            border-color: fn.color(--key-focus --handle-border);
                            box-shadow:   fn.color(--key-focus --shadow);
                        }
                    }
    
                    &:checked {
                        @include iro.bem-sibling-elem('indicator') {
                            background-color: fn.color(--key-focus --track-bg);
                        }
                    }
                }
            }
        }
    
        @include iro.bem-modifier('accent') {
            @include iro.bem-elem('native') {
                &:checked {
                    @include iro.bem-sibling-elem('indicator') {
                        background-color: fn.color(--accent --handle-border);
        
                        &::after {
                            border-color: fn.color(--accent --handle-border);
                        }
                    }
        
                    &:hover {
                        @include iro.bem-sibling-elem('indicator') {
                            background-color: fn.color(--accent --hover --handle-border);
    
                            &::after {
                                border-color: fn.color(--accent --hover --handle-border);
                            }
                        }
                    }
                }
        
                &:disabled {
                    @include iro.bem-sibling-elem('label') {
                        color: fn.color(--disabled --label);
                    }

                    &:checked {
                        @include iro.bem-sibling-elem('indicator') {
                            background-color: fn.color(--disabled --handle-border);

                            &::after {
                                border-color: fn.color(--disabled --handle-border);
                            }
                        }
                    }
                }
            }
        }
    }
}