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import React from 'react'
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import { DropTarget } from 'react-dnd'
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import { NativeTypes } from 'react-dnd-html5-backend'
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const spec = {
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drop (props, monitor) {
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const bundle = monitor.getItem()
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const file = bundle.files[0]
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const reader = new FileReader()
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reader.onload = event => props.onDrop(event.target.result)
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reader.readAsText(file, 'UTF-8');
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}
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}
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const collect = (connect, monitor) => ({ connectDropTarget: connect.dropTarget(), isOver: monitor.isOver() })
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const ReadFileDropContainer = props => props.connectDropTarget(
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<div className="dnd-container">
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{ props.isOver ? <div className="dnd-overlay">Drop your file here to import</div> : null }
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{props.children}
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<style jsx>{`
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.dnd-container {
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position: relative;
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}
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.dnd-overlay {
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display: flex;
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align-items: center;
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justify-content: center;
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text-align: center;
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width: 100%;
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height: 100%;
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z-index: 999;
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position: absolute;
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top: 0;
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left: 0;
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background: rgba(0, 0, 0, 0.85);
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}
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`}</style>
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</div>
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)
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export default DropTarget(NativeTypes.FILE, spec, collect)(ReadFileDropContainer)
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