export const addGradientsToHintOverflow = (width: number | string, color: ColorHelper) => {
    const gradient = (direction: "right" | "left") => {
        return `linear-gradient(to ${direction}, ${colorOut(color.fade(0))} 0%, ${colorOut(
            color.fade(0.3),
        )} 20%, ${colorOut(color)} 90%)`;
    };
    return {
        $nest: {
            "&:after": {
                ...absolutePosition.topRight(),
                background: gradient("right"),
            },
            "&:before": {
                ...absolutePosition.topLeft(),
                background: gradient("left"),
            },
            "&:before, &:after": {
                ...pointerEvents(),
                content: quote(``),
                height: percent(100),
                width: unit(width),
                zIndex: 1,
            },
        },
    };
};

export const spinnerLoader = (props: ISpinnerProps) => {
    const debug = debugHelper("spinnerLoader");
    const globalVars = globalVariables();
    const spinnerVars = {
        color: props.color || globalVars.mainColors.primary,
        size: props.size || 18,
        thickness: props.thickness || 3,
        speed: "0.7s",
        ...props,
    };
    return {
        ...debug.name("spinner"),
        position: "relative" as PositionProperty,
        content: quote("") as ContentProperty,
        ...defaultTransition("opacity"),
        display: "block" as DisplayProperty,
        width: unit(spinnerVars.size),
        height: unit(spinnerVars.size),
        borderRadius: percent(50),
        borderTop: `${unit(spinnerVars.thickness)} solid ${spinnerVars.color.toString()}`,
        borderRight: `${unit(spinnerVars.thickness)} solid ${spinnerVars.color.fade(0.3).toString()}`,
        borderBottom: `${unit(spinnerVars.thickness)} solid ${spinnerVars.color.fade(0.3).toString()}`,
        borderLeft: `${unit(spinnerVars.thickness)} solid ${spinnerVars.color.fade(0.3).toString()}`,
        transform: "translateZ(0)",
        animation: `spillerLoader ${spinnerVars.speed} infinite ease-in-out`,
        animationName: spinnerLoaderAnimation,
        animationDuration: spinnerVars.speed,
        animationIterationCount: "infinite",
        animationTimingFunction: "ease-in-out",
    };
};

export function fakeBackgroundFixed() {
    return {
        content: quote(""),
        display: "block",
        position: "fixed",
        top: px(0),
        left: px(0),
        width: viewWidth(100),
        height: viewHeight(100),
    };
}

export default function titleBarNavClasses() {
    const globalVars = globalVariables();
    const titleBarVars = titleBarVariables();
    const vars = titleBarNavigationVariables();
    const mediaQueries = layoutVariables().mediaQueries();
    const flex = flexHelper();
    const style = styleFactory("titleBarNav");

    const root = style(
        {
            ...flex.middleLeft(),
            position: "relative",
            height: unit(titleBarVars.sizing.height),
        },
        mediaQueries.oneColumnDown({
            height: unit(titleBarVars.sizing.mobile.height),
        }),
    );

    const navigation = style("navigation", {});

    const items = style(
        "items",
        {
            ...flex.middleLeft(),
            height: unit(titleBarVars.sizing.height),
            ...paddings(vars.padding),
        },
        mediaQueries.oneColumnDown({
            height: px(titleBarVars.sizing.mobile.height),
            justifyContent: "center",
            width: percent(100),
        }),
    );

    const link = style("link", {
        ...userSelect(),
        color: colorOut(titleBarVars.colors.fg),
        whiteSpace: "nowrap",
        lineHeight: globalVars.lineHeights.condensed,
        display: "flex",
        alignItems: "center",
        justifyContent: "center",
        height: unit(vars.item.size),
        textDecoration: "none",
        $nest: {
            "&.focus-visible": {
                backgroundColor: colorOut(titleBarVars.buttonContents.state.bg),
            },
            "&:focus": {
                backgroundColor: colorOut(titleBarVars.buttonContents.state.bg),
            },
            "&:hover": {
                backgroundColor: colorOut(titleBarVars.buttonContents.state.bg),
            },
        },
    });

    const linkActive = style("linkActive", {
        $nest: {
            "&:after": {
                ...absolutePosition.topLeft(
                    `calc(50% - ${unit(vars.linkActive.height + vars.linkActive.bottomSpace)})`,
                ),
                content: quote(""),
                height: unit(vars.linkActive.height),
                marginLeft: unit(negative(vars.linkActive.offset)),
                width: calc(`100% + ${unit(vars.linkActive.offset * 2)}`),
                backgroundColor: colorOut(vars.linkActive.bg),
                transform: `translateY(${unit(titleBarVars.sizing.height / 2)})`,
            },
        },
    });

    const linkContent = style("linkContent", {
        position: "relative",
    });

    const firstItem = style("lastItem", {
        zIndex: 2,
    });

    const lastItem = style("lastItem", {
        zIndex: 2,
    });

    return {
        root,
        navigation,
        items,
        link,
        linkActive,
        linkContent,
        lastItem,
        firstItem,
    };
}

export const richEditorClasses = useThemeCache((legacyMode: boolean, mobile?: boolean) => {
    const globalVars = globalVariables();
    const style = styleFactory("richEditor");
    const vars = richEditorVariables();
    const formVars = formElementsVariables();

    const root = style({
        position: "relative",
        display: "block",
        $nest: {
            "&.isDisabled": {
                $nest: {
                    "&, &.richEditor-button": {
                        cursor: important("progress"),
                    },
                },
            },
            "& .richEditor-text, & .richEditor-textWrap, & .richEditor-frame": {
                display: "flex",
                flexDirection: "column",
                flexGrow: 1,
                position: "relative",
            },
            "& .ql-clipboard": {
                ...srOnly(),
                position: "fixed", // Fixed https://github.com/quilljs/quill/issues/1374#issuecomment-415333651
            },
            "& .richEditor-nextInput, .iconButton, .richEditor-button": {
                ...singleLineEllipsis(),
                ...appearance(),
                position: "relative",
                border: 0,
                padding: 0,
                background: "none",
                textAlign: "left",
            },
            "& .Close-x": {
                display: "block",
                cursor: "pointer",
            },
            "& .content-wrapper": {
                height: percent(100),
            },
            "& .embedDialogue": {
                position: "relative",
            },
        },
    });

    const iconWrap = style("iconWrap", {
        ...pointerEvents(),
        content: quote(``),
        ...absolutePosition.middleOfParent(),
        width: unit(vars.iconWrap.width),
        height: unit(vars.iconWrap.height),
        ...borders({
            radius: 3,
            color: "transparent",
        }),
    });

    const paragraphMenu = style("paragraphMenu", {
        position: "absolute",
        display: "flex",
        alignItems: "center",
        justifyContent: "center",
        top: unit(vars.pilcrow.offset),
        left: 0,
        marginLeft: unit(-globalVars.gutter.quarter + (!legacyMode ? -(globalVars.gutter.size + 6) : 0)),
        transform: `translateX(-100%)`,
        height: unit(vars.paragraphMenuHandle.size),
        width: unit(globalVars.icon.sizes.default),
        animationName: vars.pilcrow.animation.name,
        animationDuration: vars.pilcrow.animation.duration,
        animationTimingFunction: vars.pilcrow.animation.timing,
        animationIterationCount: vars.pilcrow.animation.iterationCount,
        zIndex: 1,
        $nest: {
            ".richEditor-button&.isActive:hover": {
                cursor: "default",
            },
            "&.isMenuInset": {
                transform: "none",
            },
        },
    });

    const paragraphMenuMobile = style("paragraphMenu-mobile", {
        position: "relative",
        display: "flex",
        alignItems: "center",
        justifyContent: "center",
        top: important(0),
    });

    const menuBar = style("menuBar", {
        position: "relative",
        width: unit(vars.menuButton.size * 4),
        overflow: "hidden",
    });
//.........这里部分代码省略.........

//.........这里部分代码省略.........
                        color: vars.searchBar.border.leftColor,
                    },
                    radius: {
                        right: vars.searchButton.borderRadius,
                        left: 0,
                    },
                }),
            },
        },
    } as any);

    const searchContainer = style("searchContainer", {
        position: "relative",
        maxWidth: percent(100),
        width: px(vars.searchContainer.width),
        margin: "auto",
        $nest: {
            ".search-results": {
                maxWidth: percent(100),
                width: px(vars.searchContainer.width),
                margin: "auto",
            },
        },
    });

    const icon = style("icon", {});
    const input = style("input", {});

    const buttonLoader = style("buttonLoader", {});

    const titleAction = style("titleAction", {
        // color: colorOut(vars.colors.fg),
    });
    const titleWrap = style("titleWrap", {
        display: "flex",
        flexWrap: "nowrap",
        alignItems: "center",
        width: unit(vars.searchContainer.width),
        maxWidth: percent(100),
        margin: "auto",
    });

    const titleFlexSpacer = style("titleFlexSpacer", {
        position: "relative",
        height: unit(formElementVars.sizing.height),
        width: unit(formElementVars.sizing.height),
        flexBasis: unit(formElementVars.sizing.height),
        transform: translateX(px(formElementVars.sizing.height - globalVars.icon.sizes.default / 2 - 13)),
        $nest: {
            ".searchBar-actionButton:after": {
                content: quote(""),
                ...absolutePosition.middleOfParent(),
                width: px(20),
                height: px(20),
                backgroundColor: colorOut(vars.shadow.background),
                boxShadow: vars.shadow.full,
            },
            ".searchBar-actionButton": {
                color: important("inherit"),
                $nest: {
                    "&:not(.focus-visible)": {
                        outline: 0,
                    },
                },
            },
            ".icon-compose": {
                zIndex: 1,
            },
        },
    });

    const content = style("content", {
        $nest: {
            "&&.hasFocus .searchBar-valueContainer": {
                borderColor: colorOut(vars.colors.contrast),
                boxShadow: `0 0 0 ${unit(globalVars.border.width)} ${colorOut(vars.colors.primary)} inset`,
                zIndex: 1,
            },
        },
    });

    return {
        root,
        outerBackground,
        innerContainer,
        title,
        text,
        icon,
        buttonOverwrite,
        searchButton,
        searchContainer,
        input,
        buttonLoader,
        titleAction,
        titleFlexSpacer,
        titleWrap,
        content,
        valueContainer,
    };
});

export const meBoxMessageClasses = useThemeCache(() => {
    const globalVars = globalVariables();
    const vars = meBoxMessageVariables();
    const style = styleFactory("meBoxMessage");

    const root = style({
        display: "block",
        $nest: {
            "& + &": {
                borderTop: `solid 1px ${colorOut(globalVars.border.color)}`,
            },
        },
    });

    const link = style("link", {
        ...userSelect(),
        display: "flex",
        flexWrap: "nowrap",
        color: "inherit",
        ...paddings(vars.spacing.padding),
        ...buttonStates({
            allStates: {
                textShadow: "none",
            },
            hover: {
                backgroundColor: colorOut(globalVars.states.hover.color),
            },
            focus: {
                backgroundColor: colorOut(globalVars.states.focus.color),
            },
            active: {
                backgroundColor: colorOut(globalVars.states.active.color),
            },
        }),
    });

    const imageContainer = style("imageContainer", {
        position: "relative",
        width: unit(vars.imageContainer.width),
        height: unit(vars.imageContainer.width),
        flexBasis: unit(vars.imageContainer.width),
        borderRadius: percent(50),
        overflow: "hidden",
        border: `solid 1px ${globalVars.border.color.toString()}`,
    });

    const image = style("image", {
        width: unit(vars.imageContainer.width),
        height: unit(vars.imageContainer.width),
        ...objectFitWithFallback(),
    });

    const status = style("status", {
        position: "relative",
        width: unit(vars.unreadDot.width),
        flexBasis: unit(vars.unreadDot.width),
        $nest: {
            "&.isUnread": {
                $nest: {
                    "&:after": {
                        ...absolutePosition.middleRightOfParent(),
                        content: quote(""),
                        height: unit(vars.unreadDot.width),
                        width: unit(vars.unreadDot.width),
                        backgroundColor: globalVars.mainColors.primary.toString(),
                        borderRadius: percent(50),
                    },
                },
            },
        },
    });

    const contents = style("contents", {
        flexGrow: 1,
        ...paddings({
            left: vars.spacing.padding.left,
            right: vars.spacing.padding.right,
        }),
        maxWidth: calc(`100% - ${unit(vars.unreadDot.width + vars.imageContainer.width)}`),
    });

    const message = style("message", {
        lineHeight: globalVars.lineHeights.excerpt,
        color: colorOut(globalVars.mainColors.fg),
    });

    return { root, link, imageContainer, image, status, contents, message };
});