import {
    StyleSheet,
    View,
    Image,
    Text
} from 'react-native';

import React, {
    Component
} from 'react';

const styles = StyleSheet.create({
    container: {
        flex: 1,
        height: 100,
        width: 200
    },
    svg: {
        flex: 1,
        alignSelf: 'stretch'
    }
});

import Svg, {
    Circle,
    Rect,
    Path,
    Line,
    G
} from 'react-native-svg';

class SvgExample extends Component{
    static title = 'SVG';
    render() {
        return <Svg
            height="100"
            width="100"
        >
            <Circle
                cx="50"
                cy="50"
                r="45"
                stroke="blue"
                strokeWidth="2.5"
                fill="green"
            />
            <Rect
                x="15"
                y="15"
                width="70"
                height="70"
                stroke="red"
                strokeWidth="2"
                fill="yellow"
            />
        </Svg>;
    }
}

class SvgOpacity extends Component{
    static title = 'SVG with `opacity` prop';
    render() {
        return <Svg
            height="100"
            width="100"
            opacity="0.2"
        >
            <Circle
                cx="50"
                cy="50"
                r="45"
                stroke="blue"
                strokeWidth="2.5"
                fill="green"
            />
            <Rect
                x="15"
                y="15"
                width="70"
                height="70"
                stroke="red"
                strokeWidth="2"
                fill="yellow"
            />
        </Svg>;
    }
}

class SvgViewbox extends Component{
    static title = 'SVG with `viewBox="40 20 100 40" and preserveAspectRatio="none"`';
    render() {
        return <Svg
            height="100"
            width="100"
            viewBox="40 20 100 40"
            preserveAspectRatio="none"
        >
            <G>
                <Rect x="0" y="0" width="100" height="100" fill="red" />
                <Circle cx="50" cy="50" r="30" fill="yellow" />
                <Circle cx="40" cy="40" r="4" fill="black" />
                <Circle cx="60" cy="40" r="4" fill="black" />
                <Path d="M 40 60 A 10 10 0 0 0 60 60" stroke="black" />
            </G>
        </Svg>;
    }
}

class NullComponent extends Component {
    render() {
        return null;
    }
}

class SvgLayout extends Component{
    static title = 'SVG with flex layout';
    render() {
        return <View style={styles.container}>
            <Svg style={styles.svg}>
                <G>
                    <NullComponent />
                </G>
                <NullComponent />
                <Rect
                    width="80%"
                    height="80%"
                    x="10%"
                    y="10%"
                    fill="purple"
                    stroke="yellow"
                    strokeWidth="4"
                />
                <Line
                    x1="10%"
                    y1="10%"
                    x2="90%"
                    y2="90%"
                    stroke="yellow"
                    strokeWidth="4"
                />
                <Line
                    x1="10%"
                    y1="90%"
                    x2="90%"
                    y2="10%"
                    stroke="yellow"
                    strokeWidth="4"
                />
            </Svg>
        </View>;
    }
}

class SvgNativeMethods extends Component {
    constructor() {
        super(...arguments);
        this.state = {
            base64: null
        };
    }

    alert = function () {
        this.root.toDataURL(base64 => {
            this.setState({
                base64
            });
        });
    };
    render() {
        return <View>
            <Svg height="100" width="150" ref={ele => {this.root = ele;}}>
                <G x="40" onPress={this.alert.bind(this)}>
                    <Circle cx="32" cy="32" r="4.167" fill="blue"/>
                    <Path d="M55.192 27.87l-5.825-1.092a17.98 17.98 0 0 0-1.392-3.37l3.37-4.928c.312-.456.248-1.142-.143-1.532l-4.155-4.156c-.39-.39-1.076-.454-1.532-.143l-4.928 3.37a18.023 18.023 0 0 0-3.473-1.42l-1.086-5.793c-.103-.543-.632-.983-1.185-.983h-5.877c-.553 0-1.082.44-1.185.983l-1.096 5.85a17.96 17.96 0 0 0-3.334 1.393l-4.866-3.33c-.456-.31-1.142-.247-1.532.144l-4.156 4.156c-.39.39-.454 1.076-.143 1.532l3.35 4.896a18.055 18.055 0 0 0-1.37 3.33L8.807 27.87c-.542.103-.982.632-.982 1.185v5.877c0 .553.44 1.082.982 1.185l5.82 1.09a18.013 18.013 0 0 0 1.4 3.4l-3.31 4.842c-.313.455-.25 1.14.142 1.53l4.155 4.157c.39.39 1.076.454 1.532.143l4.84-3.313c1.04.563 2.146 1.02 3.3 1.375l1.096 5.852c.103.542.632.982 1.185.982h5.877c.553 0 1.082-.44 1.185-.982l1.086-5.796c1.2-.354 2.354-.82 3.438-1.4l4.902 3.353c.456.313 1.142.25 1.532-.142l4.155-4.154c.39-.39.454-1.076.143-1.532l-3.335-4.874a18.016 18.016 0 0 0 1.424-3.44l5.82-1.09c.54-.104.98-.633.98-1.186v-5.877c0-.553-.44-1.082-.982-1.185zM32 42.085c-5.568 0-10.083-4.515-10.083-10.086 0-5.568 4.515-10.084 10.083-10.084 5.57 0 10.086 4.516 10.086 10.083 0 5.57-4.517 10.085-10.086 10.085z" fill="blue"/>
                </G>
            </Svg>
            <Text>Tap the shapes to render the Image below based on the base64-data of the Svg</Text>
            <Image
                source={{url: `data:image/png;base64,${this.state.base64}`}}
                style={{width:150, height: 100, borderWidth: 1, marginTop: 5}}
            />
        </View>;
    }
}

const icon = <Svg
    height="20"
    width="20"
>
    <Circle
        cx="10"
        cy="10"
        r="8"
        stroke="blue"
        strokeWidth="1"
        fill="green"
    />
    <Rect
        x="4"
        y="4"
        width="12"
        height="12"
        stroke="red"
        strokeWidth="1"
        fill="yellow"
    />
</Svg>;

const samples = [
    SvgExample,
    SvgOpacity,
    SvgViewbox,
    SvgLayout,
    SvgNativeMethods
];

export {
    icon,
    samples
};