@use "../variables" as vars;
@use "../functions" as func;
@use "../mixins" as mixins;

$navigation-row-link-padding-left-right: func.units(2);
$navigation-desktop-border-bottom-thickness: func.units(2);

$-left-right-padding: func.units(305);

%-mainmenu-item {
    display: block;
    padding: func.units(4) $-left-right-padding 0; // top | left and right | bottom
    text-decoration: none;
    background-color: func.color(vars.$navigation-link-background-color);
    color: func.color(vars.$navigation-link-default-color);
    border: 0;
    line-height: 1.5;
    cursor: pointer;
    text-align: left;
    white-space: nowrap;
    max-width: unset;

    span {
        display: block;
        border-bottom: $navigation-desktop-border-bottom-thickness solid func.color('transparent');
        padding-bottom: func.units(305);
    }

    &:hover {
        span {
            border-bottom: $navigation-desktop-border-bottom-thickness solid func.color(vars.$navigation-link-current-border-color);
        }
    }

    &:focus {
        position: relative;
        z-index: vars.$zindex-nav-focus;
    }
}

%-icon-properties {
    $icon-size: func.units(5, 'rem');

    span {
        background-position-x: right;
        background-size: $icon-size;
        padding-right: calc($icon-size + func.units(2));
    }
}

// --------------------------
// Main menu on desktop
// --------------------------

$-active-border-width: func.units(2);

.navigation-menu ul.mainmenu {
    margin: 0;
    list-style-type: none;
    padding-left: 0;
    display: flex;
    flex-flow: row nowrap;
    margin-left: -$-left-right-padding;

    & > li {
        margin-bottom: 0;
        margin-top: 0;
        padding-left: 0;

        &::before {
            content: "" !important;
            padding-right: 0 !important;
        }
    }

    li.active {
        span {
            border-bottom: $navigation-desktop-border-bottom-thickness solid func.color(vars.$navigation-link-current-border-color);
            font-weight: func.font-weight("bold");
        }
    }

    li.more-option {
        ul li {
            padding-left: 0;
            padding-right: 0;

            .nav-link {
                padding-left: 16px;
            }

            li {
                .nav-link {
                    padding-left: 40px;
                }

                li {
                    .nav-link {
                        padding-left: 64px;
                    }

                    li {
                        .nav-link {
                            padding-left: 88px;
                        }
                    }
                }
            }

            &.active .nav-link {
                padding-left: 16px;
                margin-left: calc(0px - $-active-border-width);
                width: calc(100% + $-active-border-width);

                &:hover {
                    padding-left: 16px - $-active-border-width;
                    border-left: $-active-border-width solid func.color(vars.$navigation-link-current-border-color);
                }
            }
            
            &.active li {
                .nav-link {
                    padding-left: 40px;

                    &:hover {
                        padding-left: 40px - $-active-border-width;
                        border-left: $-active-border-width solid func.color(vars.$navigation-link-current-border-color);
                    }
                }
                
                li {
                    .nav-link {
                        padding-left: 64px;

                        &:hover {
                            padding-left: 64px - $-active-border-width;
                            border-left: $-active-border-width solid func.color(vars.$navigation-link-current-border-color);
                        }
                    }
                    
                    li {
                        .nav-link {
                            padding-left: 88px;

                            &:hover {
                                padding-left: 88px - $-active-border-width;
                                border-left: $-active-border-width solid func.color(vars.$navigation-link-current-border-color);
                            }
                        }
                    }
                }
            }
        }

        ul.overflow-list > li.active {
            border-left: $-active-border-width solid func.color(vars.$navigation-link-current-border-color);
        }

        .overflow-menu-inner {
            $-border-width: 1px;
            margin-left: calc(0px - func.units(2));

            ul li.active {
                background-color: func.color(vars.$navigation-link-background-color);

                span {
                    font-weight: func.font-weight("normal");

                    &.sub-title {
                        font-weight: func.font-weight("medium");
                    }
                }

                &.current {
                    background-color: func.color(vars.$navigation-link-current-background-color);
                    
                    span {
                        font-weight: func.font-weight("bold");
                    }
                }
            }
        }

        .button-overflow-menu.more-button {
            @extend %-mainmenu-item;
            @extend %-icon-properties;
    
            &[aria-expanded='false'] span,
            &[aria-expanded='true'] span {
                @include mixins.add-background-svg("more-vert");
            }
    
            &:hover {
                span {
                    border-bottom: $navigation-desktop-border-bottom-thickness solid func.color('transparent');
                    text-decoration: underline;
                }
            }
        }
    }

    .collapsed {
        display: none;
    }

    .nav-link {
        @extend %-mainmenu-item;
    }

    .button-overflow-menu {
        @extend %-mainmenu-item;
        @extend %-icon-properties;

        &[aria-expanded="false"] span {
            @include mixins.add-background-svg("chevron-down");
        }

        &[aria-expanded="true"] span {
            @include mixins.add-background-svg("chevron-up");
        }
    }

    .overflow-menu-inner {
        $-border-width: 1px;
        position: absolute;
        z-index: vars.$zindex-nav-overflow-menu;
        top: 100%;
        width: 30rem;
        border: $-border-width solid func.color('gray-500');
        background-color: func.color('white');
        margin-left: calc(0px - $navigation-row-link-padding-left-right);
        box-shadow: func.shadow('light');

        ul {
            @include mixins.unstyled-list;
            

            & > li {
                border-bottom: func.border('very-low-contrast');
                padding-left: 0;
                padding-right: 0;

                &.current,
                &.active {
                    background-color: func.color(vars.$navigation-link-current-background-color);
                }
    
                &:last-child {
                    border-bottom: 0;
                }

                li {
                    border-bottom: 0;
                }
            }

            .nav-link {
                padding: func.units(3) calc($-left-right-padding + $navigation-row-link-padding-left-right); // top and bottom | left and right
                white-space: normal;
                overflow-wrap: break-word;
                background-color: func.color('transparent');

                span {
                    border-bottom: none;
                    font-weight: func.font-weight("normal");
                    padding-bottom: 0;
                }

                &:hover {
                    background-color: func.color('gray-100');
                }
            }

            ul li:last-child .nav-link {
                padding-bottom: func.units(4);
            }

            li.current .nav-link span,
            li.active .nav-link span {
                font-weight: func.font-weight("bold");
            }

            .sub-title {
                @include mixins.h6;
                color: func.color('gray-500');
                border-bottom: 0;
                padding-left: func.units(4);
                padding-top: func.units(305);
                display: inline-block;
            }

            .active .sub-title {
                padding-left: func.units(305);
            }
        }
    }
}