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

@include iro.props-namespace('checkbox') {
    @include iro.props-store((
        --dims: (
            --size:         iro.fn-px-to-rem(14px),
            --label-gap:    iro.fn-px-to-rem(10px),
            --border-width: fn.global-dim(--border-width --medium),
            --pad-x:        iro.fn-px-to-rem(5px),
            --pad-y:        iro.fn-px-to-rem(5px),
            --margin-right: fn.global-dim(--spacing --x --md),
        ),
    ), 'dims');

    @include iro.props-store((
        --colors: (
            --box-border: fn.global-color(--fg-hi),
            --box-bg:     fn.global-color(--bg-hi),
    
            --hover: (
                --label:      fn.global-color(--fg-lo),
                --box-border: fn.global-color(--fg),
            ),
            --accent: (
                --box-border: fn.global-color(--accent --primary --main),
    
                --hover: (
                    --box-border: fn.global-color(--accent --primary --lo),
                ),
            ),
            --key-focus: (
                --label:      fn.global-color(--focus --text),
                --box-border: fn.global-color(--focus --fill),
                --shadow:     fn.global-color(--focus --shadow),
            ),
            --disabled: (
                --label:      fn.global-color(--fg-hi3),
                --box-border: fn.global-color(--obj-lo),
                --box-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('box') {
            display:          block;
            position:         relative;
            flex:             0 0 auto;
            width:            fn.dim(--size);
            height:           fn.dim(--size);
            margin-top:       calc(.5 * (fn.global-dim(--font --standard --line-height) * 1em - fn.dim(--size)));
            border-radius:    fn.dim(--border-width);
            background-color: fn.color(--box-border);
    
            &::before,
            &::after {
                content:  '';
                display:  block;
                position: absolute;
            }
    
            &::before {
                z-index:          2;
                top:              fn.dim(--border-width);
                left:             fn.dim(--border-width);
                width:            calc(fn.dim(--size) - 2 * fn.dim(--border-width));
                height:           calc(fn.dim(--size) - 2 * fn.dim(--border-width));
                transition:       transform .2s ease;
                background-color: fn.color(--box-bg);
            }
    
            &::after {
                z-index:       3;
                top:           calc(.5 * fn.dim(--size) - 1px);
                left:          calc(1.5 * fn.dim(--border-width));
                box-sizing:    border-box;
                width:         calc(fn.dim(--size) - 3 * fn.dim(--border-width));
                height:        0;
                transform:     scale(0);
                transition:    transform .2s ease;
                border-width:  0 2px 2px 0;
                border-style:  solid;
                border-radius: 2px;
                border-color:  fn.color(--box-bg);
            }
        }
    
        @include iro.bem-elem('check-icon') {
            display:          block;
            position:         absolute;
            z-index:          2;
            top:              calc(1 * fn.dim(--border-width));
            left:             calc(1 * fn.dim(--border-width));
            width:            calc(100% - 2 * fn.dim(--border-width));
            height:           calc(100% - 2 * fn.dim(--border-width));
            transform:        scale(0);
            transform-origin: 40% 90%;
            transition:       transform .2s ease;
            stroke-width:     iro.fn-px-to-rem(3px);
            color:            fn.color(--box-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('box') {
                    background-color: fn.color(--hover --box-border);
                }
            }
    
            &:checked {
                @include iro.bem-sibling-elem('box') {
                    &::before {
                        transform: scale(0);
                    }
    
                    @include iro.bem-elem('check-icon') {
                        transform: scale(1);
                    }
                }
            }
    
            &:indeterminate {
                @include iro.bem-sibling-elem('box') {
                    &::before {
                        transform: scale(0);
                    }
    
                    &::after {
                        transform: scale(1);
                    }
    
                    @include iro.bem-elem('check-icon') {
                        transform: scale(0);
                    }
                }
            }
    
            &:disabled {
                @include iro.bem-sibling-elem('label') {
                    color: fn.color(--disabled --label);
                }
    
                @include iro.bem-sibling-elem('box') {
                    background-color: fn.color(--disabled --box-border);
    
                    &::before {
                        background-color: fn.color(--disabled --box-bg);
                    }
                }
            }
    
            @include iro.bem-at-theme('keyboard') {
                &:focus {
                    @include iro.bem-sibling-elem('label') {
                        color: fn.color(--key-focus --label);
                    }
    
                    @include iro.bem-sibling-elem('box') {
                        background-color: fn.color(--key-focus --box-border);
                        box-shadow:       fn.color(--key-focus --shadow);
                    }
                }
            }
        }
    
        @include iro.bem-modifier('accent') {
            @include iro.bem-elem('native') {
                &:checked {
                    @include iro.bem-sibling-elem('box') {
                        background-color: fn.color(--accent --box-border);
                    }
        
                    &:hover {
                        @include iro.bem-sibling-elem('box') {
                            background-color: fn.color(--accent --hover --box-border);
                        }
                    }
                }
    
                &:indeterminate {
                    @include iro.bem-sibling-elem('box') {
                        background-color: fn.color(--accent --box-border);
                    }
        
                    &:hover {
                        @include iro.bem-sibling-elem('box') {
                            background-color: fn.color(--accent --hover --box-border);
                        }
                    }
                }
    
                &:disabled {
                    @include iro.bem-sibling-elem('box') {
                        background-color: fn.color(--disabled --box-border);
        
                        &::before {
                            background-color: fn.color(--disabled --box-bg);
                        }
                    }

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