// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.

import {StatusBar} from 'react-native';

import {Preferences, Screens} from '@constants';
import EphemeralStore from '@store/ephemeral_store';
import NavigationStore from '@store/navigation_store';

import {
    blendColors,
    changeOpacity,
    concatStyles,
    getComponents,
    getKeyboardAppearanceFromTheme,
    hexToHue,
    makeStyleSheetFromTheme,
    setNavigationStackStyles,
    setNavigatorStyles,
    setThemeDefaults,
    updateThemeIfNeeded,
} from './';

const themes = Preferences.THEMES;

describe('getKeyboardAppearanceFromTheme', () => {
    it('should return "light" keyboard appearance for denim theme', () => {
        const keyboardAppearance = getKeyboardAppearanceFromTheme(themes.denim);
        expect(keyboardAppearance).toBe('light');
    });

    it('should return "light" keyboard appearance for sapphire theme', () => {
        const keyboardAppearance = getKeyboardAppearanceFromTheme(themes.sapphire);
        expect(keyboardAppearance).toBe('light');
    });

    it('should return "dark" keyboard appearance for quartz theme', () => {
        const keyboardAppearance = getKeyboardAppearanceFromTheme(themes.quartz);
        expect(keyboardAppearance).toBe('light');
    });

    it('should return "dark" keyboard appearance for indigo theme', () => {
        const keyboardAppearance = getKeyboardAppearanceFromTheme(themes.indigo);
        expect(keyboardAppearance).toBe('dark');
    });

    it('should return "dark" keyboard appearance for onyx theme', () => {
        const keyboardAppearance = getKeyboardAppearanceFromTheme(themes.onyx);
        expect(keyboardAppearance).toBe('dark');
    });

    it('should return "light" for a light theme', () => {
        const theme = {centerChannelBg: '#ffffff'} as Theme;
        const result = getKeyboardAppearanceFromTheme(theme);
        expect(result).toBe('light');
    });

    it('should return "dark" for a dark theme', () => {
        const theme = {centerChannelBg: '#000000'} as Theme;
        const result = getKeyboardAppearanceFromTheme(theme);
        expect(result).toBe('dark');
    });
});

describe('getComponents', () => {
    it('should return the correct components for an RGB color', () => {
        const color = 'rgb(255,0,0)';
        const result = getComponents(color);
        expect(result).toEqual({red: 255, green: 0, blue: 0, alpha: 1});
    });

    it('should return the correct components for an RGBA color', () => {
        const color = 'rgba(255,0,0,0.5)';
        const result = getComponents(color);
        expect(result).toEqual({red: 255, green: 0, blue: 0, alpha: 0.5});
    });

    it('should return the correct components for a hex color', () => {
        const color = '#ff0000';
        const result = getComponents(color);
        expect(result).toEqual({red: 255, green: 0, blue: 0, alpha: 1});
    });

    it('should return the correct components for a short hex color', () => {
        const color = '#f00';
        const result = getComponents(color);
        expect(result).toEqual({red: 255, green: 0, blue: 0, alpha: 1});
    });
});

describe('makeStyleSheetFromTheme', () => {
    it('should create a style sheet from the theme', () => {
        const theme = {centerChannelBg: '#ffffff'} as Theme;
        const getStyleFromTheme = jest.fn().mockReturnValue({container: {backgroundColor: theme.centerChannelBg}});
        const makeStyleSheet = makeStyleSheetFromTheme(getStyleFromTheme);
        const style = makeStyleSheet(theme);
        expect(style).toEqual({container: {backgroundColor: theme.centerChannelBg}});
    });

    it('should return the same style sheet if the theme has not changed', () => {
        const theme = {centerChannelBg: '#ffffff'} as Theme;
        const getStyleFromTheme = jest.fn().mockReturnValue({container: {backgroundColor: theme.centerChannelBg}});
        const makeStyleSheet = makeStyleSheetFromTheme(getStyleFromTheme);
        const style1 = makeStyleSheet(theme);
        const style2 = makeStyleSheet(theme);
        expect(style1).toBe(style2);
    });
});

describe('changeOpacity', () => {
    it('should change the opacity of a color', () => {
        const color = 'rgba(255,0,0,1)';
        const opacity = 0.5;
        const result = changeOpacity(color, opacity);
        expect(result).toBe('rgba(255,0,0,0.5)');
    });
});

describe('concatStyles', () => {
    it('should concatenate styles', () => {
        const style1 = {backgroundColor: 'red'} as any;
        const style2 = {color: 'blue'} as any;
        const result = concatStyles(style1, style2);
        expect(result).toEqual([style1, style2]);
    });
});

describe('setNavigatorStyles', () => {
    it('should set the navigator styles', () => {
        const statusSpy = jest.spyOn(StatusBar, 'setBarStyle');
        const componentId = 'component1';
        const theme = {sidebarBg: '#000000', sidebarHeaderTextColor: '#ffffff', centerChannelBg: '#ffffff', centerChannelColor: '#000000'} as Theme;
        const additionalOptions = {topBar: {title: {text: 'Test'}}};
        setNavigatorStyles(componentId, theme, additionalOptions);
        expect(statusSpy).toHaveBeenCalledWith('light-content');
    });

    it('should set the navigator styles - light', () => {
        const statusSpy = jest.spyOn(StatusBar, 'setBarStyle');
        const componentId = 'component1';
        const theme = {sidebarBg: '#ffffff', sidebarHeaderTextColor: '#000000', centerChannelBg: '#000000', centerChannelColor: '#ffffff'} as Theme;
        const additionalOptions = {topBar: {title: {text: 'Test'}}};
        setNavigatorStyles(componentId, theme, additionalOptions, '#ffffff');
        expect(statusSpy).toHaveBeenCalledWith('dark-content');
    });
});

describe('setNavigationStackStyles', () => {
    it('should set the navigation stack styles', () => {
        const statusSpy = jest.spyOn(StatusBar, 'setBarStyle');
        const theme = {sidebarBg: '#000000', sidebarHeaderTextColor: '#ffffff', centerChannelBg: '#ffffff', centerChannelColor: '#000000'} as Theme;
        jest.spyOn(NavigationStore, 'getScreensInStack').mockReturnValue([Screens.ABOUT]);
        setNavigationStackStyles(theme);
        expect(statusSpy).toHaveBeenCalledWith('light-content');
    });
});

describe('hexToHue', () => {
    it('should return the correct hue for a hex color - all red', () => {
        const color = '#ff0000';
        const result = hexToHue(color);
        expect(result).toBe(0);
    });

    it('should return the correct hue for a hex color - white', () => {
        const color = '#ffffff';
        const result = hexToHue(color);
        expect(result).toBe(0);
    });

    it('should return the correct hue for a hex color - all green', () => {
        const color = '#0000ff';
        const result = hexToHue(color);
        expect(result).toBe(240);
    });

    it('should return the correct hue for a hex color - all blue', () => {
        const color = '#00ff00';
        const result = hexToHue(color);
        expect(result).toBe(120);
    });
});

describe('blendColors', () => {
    it('should blend two colors', () => {
        const background = '#ff0000';
        const foreground = '#0000ff';
        const opacity = 0.5;
        const result = blendColors(background, foreground, opacity);
        expect(result).toBe('rgba(127,0,127,1)');
    });

    it('should blend two colors and return hex', () => {
        const background = '#ff0000';
        const foreground = '#0000ff';
        const opacity = 0.5;
        const result = blendColors(background, foreground, opacity, true);
        expect(result).toBe('#7f007f');
    });
});

describe('setThemeDefaults', () => {
    it('should set theme defaults', () => {
        const theme = {sidebarBg: '#000000'} as ExtendedTheme;
        const result = setThemeDefaults(theme);
        expect(result.sidebarBg).toBe('#000000');
        expect(result.centerChannelBg).toBeDefined();
    });

    it('should return the source theme object if it is a system theme', () => {
        const theme = {type: 'Denim'} as ExtendedTheme;
        const result = setThemeDefaults(theme);
        expect(result).toBe(Preferences.THEMES.denim);
    });
});

describe('updateThemeIfNeeded', () => {
    it('should update the theme if it is different from the stored theme', () => {
        const theme = {sidebarBg: '#000000'} as Theme;
        EphemeralStore.theme = {sidebarBg: '#ffffff'} as Theme;
        updateThemeIfNeeded(theme);
        expect(EphemeralStore.theme).toBe(theme);
    });

    it('should not update the theme if it is the same as the stored theme', () => {
        const theme = {sidebarBg: '#000000'} as Theme;
        EphemeralStore.theme = theme;
        updateThemeIfNeeded(theme);
        expect(EphemeralStore.theme).toBe(theme);
    });
});