// Copyright (C) The Arvados Authors. All rights reserved.
//
// SPDX-License-Identifier: AGPL-3.0

import * as React from 'react';

import { StyleRulesCallback, Theme, WithStyles, withStyles } from '@material-ui/core/styles';
import Drawer from '@material-ui/core/Drawer';
import AppBar from '@material-ui/core/AppBar';
import Toolbar from '@material-ui/core/Toolbar';
import Typography from '@material-ui/core/Typography';
import { connect } from "react-redux";
import Tree, { TreeItem } from "../../components/tree/tree";
import { Project } from "../../models/project";
import { RootState } from "../../store/root-reducer";
import ProjectList from "../../components/project-list/project-list";
import { Route, Switch } from "react-router";
import { Link } from "react-router-dom";

import { actions as projectActions } from "../../store/project-action";
import ListItemText from "@material-ui/core/ListItemText/ListItemText";
import ListItemIcon from '@material-ui/core/ListItemIcon';

const drawerWidth = 240;

type CssRules = 'root' | 'appBar' | 'active' | 'drawerPaper' | 'content' | 'row' | 'treeContainer' | 'toolbar';

const styles: StyleRulesCallback<CssRules> = (theme: Theme) => ({
    root: {
        flexGrow: 1,
        zIndex: 1,
        overflow: 'hidden',
        position: 'relative',
        display: 'flex',
        width: '100%',
        height: '100%'
    },
    appBar: {
        zIndex: theme.zIndex.drawer + 1,
        backgroundColor: '#692498'
    },
    active: {
        color: '#4285F6',
    },
    drawerPaper: {
        position: 'relative',
        width: drawerWidth,
    },
    content: {
        flexGrow: 1,
        backgroundColor: theme.palette.background.default,
        padding: theme.spacing.unit * 3,
        minWidth: 0,
    },
    row: {
        display: 'flex',
        alignItems: 'center',
    },
    treeContainer: {
        position: 'absolute',        
        overflowX: 'visible',
        marginTop: '80px',
        minWidth: drawerWidth,
        whiteSpace: 'nowrap',
    },
    toolbar: theme.mixins.toolbar
});

interface WorkbenchProps {
    projects: Array<TreeItem<Project>>;
    toggleProjectTreeItem: (id: string) => any;
}

interface WorkbenchState {
}

class Workbench extends React.Component<WorkbenchProps & WithStyles<CssRules>, WorkbenchState> {
    render() {
        const {classes, projects} = this.props;
        return (
            <div className={classes.root}>
                <AppBar position="absolute" className={classes.appBar}>
                    <Toolbar>
                        <Typography variant="title" color="inherit" noWrap>
                            Arvados<br/>Workbench 2
                        </Typography>
                    </Toolbar>
                </AppBar>
                <Drawer
                    variant="permanent"
                    classes={{
                        paper: classes.drawerPaper,
                    }}>
                    <div className={classes.toolbar}/>
                    <div className={classes.treeContainer}>
                        <Tree items={projects}
                            toggleItem={this.props.toggleProjectTreeItem}
                            render={(project: TreeItem<Project>) => <span className={classes.row}>
                                <div><ListItemIcon className={project.active ? classes.active : ''}>{project.data.icon}</ListItemIcon></div>
                                <div><ListItemText primary={<Typography className={project.active ? classes.active : ''}>{project.data.name}</Typography>} /></div>
                            </span>}
                            />
                    </div>
                </Drawer>
                <main className={classes.content}>
                    <div className={classes.toolbar}/>
                    <Switch>
                        <Route exact path="/">
                            <Typography noWrap>Hello new workbench!</Typography>
                        </Route>
                        <Route path="/project/:name" component={ProjectList}/>
                    </Switch>
                </main>
            </div>
        );
    }
}

export default connect(
    (state: RootState) => ({
        projects: state.projects
    }), {
        toggleProjectTreeItem: (id: string) => projectActions.toggleProjectTreeItem(id)
    }
)(
    withStyles(styles)(Workbench)
);