const React = require("react");
const Component = React.Component;
const { ListView, StyleSheet, View, Text, Button, FlatList } = require("react-native");
const Setting = require("lib/models/Setting.js");
const { connect } = require("react-redux");
const { Log } = require("lib/log.js");
const { reg } = require("lib/registry.js");
const { ScreenHeader } = require("lib/components/screen-header.js");
const { time } = require("lib/time-utils");
const { Logger } = require("lib/logger.js");
const BaseItem = require("lib/models/BaseItem.js");
const { Database } = require("lib/database.js");
const Folder = require("lib/models/Folder.js");
const { ReportService } = require("lib/services/report.js");
const { _ } = require("lib/locale.js");
const { BaseScreenComponent } = require("lib/components/base-screen.js");
const { globalStyle, themeStyle } = require("lib/components/global-style.js");

const styles = StyleSheet.create({
	body: {
		flex: 1,
		margin: globalStyle.margin,
	},
});

class StatusScreenComponent extends BaseScreenComponent {
	static navigationOptions(options) {
		return { header: null };
	}

	constructor() {
		super();
		this.state = {
			report: [],
		};
	}

	componentWillMount() {
		this.resfreshScreen();
	}

	async resfreshScreen() {
		let service = new ReportService();
		let report = await service.status(Setting.value("sync.target"));
		this.setState({ report: report });
	}

	render() {
		const theme = themeStyle(this.props.theme);

		function renderBody(report) {
			let output = [];
			let baseStyle = {
				paddingLeft: 6,
				paddingRight: 6,
				paddingTop: 2,
				paddingBottom: 2,
				flex: 0,
				color: theme.color,
				fontSize: theme.fontSize,
			};

			let lines = [];

			for (let i = 0; i < report.length; i++) {
				let section = report[i];

				let style = Object.assign({}, baseStyle);
				style.fontWeight = "bold";
				if (i > 0) style.paddingTop = 20;
				lines.push({ key: "section_" + i, isSection: true, text: section.title });

				for (let n in section.body) {
					if (!section.body.hasOwnProperty(n)) continue;
					style = Object.assign({}, baseStyle);
					lines.push({ key: "item_" + i + "_" + n, text: section.body[n] });
				}

				lines.push({ key: "divider2_" + i, isDivider: true });
			}

			return (
				<FlatList
					data={lines}
					renderItem={({ item }) => {
						let style = Object.assign({}, baseStyle);
						if (item.isSection === true) {
							style.fontWeight = "bold";
							style.marginBottom = 5;
						}
						if (item.isDivider) {
							return <View style={{ borderBottomWidth: 1, borderBottomColor: "white", marginTop: 20, marginBottom: 20 }} />;
						} else {
							return <Text style={style}>{item.text}</Text>;
						}
					}}
				/>
			);
		}

		let body = renderBody(this.state.report);

		return (
			<View style={this.rootStyle(this.props.theme).root}>
				<ScreenHeader title={_("Status")} />
				<View style={styles.body}>{body}</View>
				<Button title={_("Refresh")} onPress={() => this.resfreshScreen()} />
			</View>
		);
	}
}

const StatusScreen = connect(state => {
	return {
		theme: state.settings.theme,
	};
})(StatusScreenComponent);

module.exports = { StatusScreen };