/*
 * MIT License
 * 
 * Copyright (c) 2023 Robin E. R. Davies
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import React, { Component, SyntheticEvent } from 'react';
import { Theme } from '@mui/material/styles';
import { WithStyles } from '@mui/styles';
import createStyles from '@mui/styles/createStyles';
import withStyles from '@mui/styles/withStyles';
import { UiFileProperty } from './Lv2Plugin';
import Typography from '@mui/material/Typography';
import { PiPedalModel, PiPedalModelFactory, ListenHandle,State} from './PiPedalModel';
import ButtonBase from '@mui/material/ButtonBase'
import MoreHorizIcon from '@mui/icons-material/MoreHoriz';
import {PedalboardItem} from './Pedalboard';
import {isDarkMode} from './DarkMode';

export const StandardItemSize = { width: 80, height: 140 }



const styles = (theme: Theme) => createStyles({
    frame: {
        position: "relative",
        margin: "12px"
    },
    switchTrack: {
        height: '100%',
        width: '100%',
        borderRadius: 14 / 2,
        zIndex: -1,
        transition: theme.transitions.create(['opacity', 'background-color'], {
            duration: theme.transitions.duration.shortest
        }),
        backgroundColor: theme.palette.secondary.main,
        opacity: theme.palette.mode === 'light' ? 0.38 : 0.3
    },
    displayValue: {
        position: "absolute",
        top: 0,
        left: 0,
        right: 0,
        bottom: 4,
        textAlign: "center",
        background: "white",
        color: "#666",
        // zIndex: -1,
    }
});


export interface FilePropertyControlProps extends WithStyles<typeof styles> {
    fileProperty: UiFileProperty;
    pedalboardItem: PedalboardItem;
    onFileClick: (fileProperty: UiFileProperty, value: string) => void;
    theme: Theme;
}
type FilePropertyControlState = {
    error: boolean;
    hasValue: boolean;
    value: string;
};

const FilePropertyControl =
    withStyles(styles, { withTheme: true })(
        class extends Component<FilePropertyControlProps, FilePropertyControlState>
        {

            model: PiPedalModel;


            constructor(props: FilePropertyControlProps) {
                super(props);

                this.state = {
                    error: false,
                    hasValue: false,
                    value: "",
                };
                this.model = PiPedalModelFactory.getInstance();
                this.onStateChanged = this.onStateChanged.bind(this);
            }


            onStateChanged(state: State) {
                if (this.mounted)
                {
                    if (state === State.Ready) {
                        this.subscribeToPatchProperty();
                    }
                }
            }
            private propertyGetHandle?: ListenHandle;

            monitorPropertyHandle?: ListenHandle;

            subscribeToPatchProperty() {
                // this.propertyGetHandle = this.model.listenForAtomOutput(this.props.instanceId,(instanceId,atomOutput)=>{
                //     // PARSE THE OBJECT!
                //     // this.setState({value: atomOutput?.value as string});
                // });
                this.unsubscribeToPatchProperty();
                this.monitorPropertyHandle = this.model.monitorPatchProperty(this.props.pedalboardItem.instanceId,
                    this.props.fileProperty.patchProperty,
                    (instanceId,property,propertyValue) => {
                        if (propertyValue.otype_ === "Path")
                        {
                            this.setState({value: propertyValue.value as string,hasValue: true});
                        }
                    }
                    );

            }
            unsubscribeToPatchProperty() {
                if (this.monitorPropertyHandle !== undefined)
                {
                    this.model.cancelMonitorPatchProperty(this.monitorPropertyHandle);
                    this.monitorPropertyHandle = undefined;
                }

            }
            private mounted: boolean = false;
            componentDidMount() {
                this.model.state.addOnChangedHandler(this.onStateChanged);
                this.mounted = true;
                this.subscribeToPatchProperty();
            }
            componentWillUnmount() {
                this.unsubscribeToPatchProperty();
                this.mounted = false;
                this.model.state.removeOnChangedHandler(this.onStateChanged);
            }
            componentDidUpdate(prevProps: Readonly<FilePropertyControlProps>, prevState: Readonly<FilePropertyControlState>, snapshot?: any): void {
                if (prevProps.fileProperty.patchProperty !== this.props.fileProperty.patchProperty
                    || prevProps.pedalboardItem.instanceId !== this.props.pedalboardItem.instanceId
                    || prevProps.pedalboardItem.stateUpdateCount !== this.props.pedalboardItem.stateUpdateCount

                    ) {
                    this.unsubscribeToPatchProperty();
                    this.subscribeToPatchProperty();
                }

            }


            inputChanged: boolean = false;

            onDrag(e: SyntheticEvent) {
                e.preventDefault();
            }

            onFileClick() {
                this.props.onFileClick(this.props.fileProperty, this.state.value);
            }
            private fileNameOnly(path: string): string {
                let slashPos = path.lastIndexOf('/');
                if (slashPos < 0) {
                    slashPos = 0;
                } else {
                    ++slashPos;
                }
                let extPos = path.lastIndexOf('.');
                if (extPos < 0 || extPos < slashPos) {
                    extPos = path.length;
                }

                return path.substring(slashPos, extPos);

            }
            render() {
                //let classes = this.props.classes;
                let fileProperty = this.props.fileProperty;

                let value = "\u00A0";
                if (this.state.hasValue)
                {
                    if (this.state.value.length === 0)
                    {
                        value = "<none>";
                    } else {
                        value = this.fileNameOnly(this.state.value);
                    }
                }

                let item_width = 264;

                return (
                    <div style={{ display: "flex", flexDirection: "column", alignItems: "center", justifyContent: "flex-start", width: item_width, margin: 8, paddingLeft: 8 }}>
                        {/* TITLE SECTION */}
                        <div style={{ flex: "0 0 auto", width: "100%", marginBottom: 8, marginLeft: 0, marginRight: 0 }}>
                            <Typography variant="caption" display="block" noWrap style={{
                                width: "100%",
                                textAlign: "start"
                            }}> {fileProperty.label}</Typography>
                        </div>
                        {/* CONTROL SECTION */}

                        <div style={{ flex: "0 0 auto", width: "100%" }}>

                            <ButtonBase style={{ width: "100%", borderRadius: "4px 4px 0px 0px", overflow: "hidden", marginTop: 8 }} onClick={() => { this.onFileClick() }} >
                                <div style={{ width: "100%", background: 
                                        isDarkMode()? "rgba(255,255,255,0.03)": "rgba(0,0,0,0.07)", 
                                        borderRadius: "4px 4px 0px 0px" }}>
                                    <div style={{ display: "flex", alignItems: "center", flexFlow: "row nowrap" }}>
                                        <Typography noWrap={true} style={{ flex: "1 1 100%", textAlign: "start", verticalAlign: "center", paddingTop: 4, paddingBottom: 4, paddingLeft: 4 }}
                                            variant='caption'
                                        >{value}</Typography>
                                        <MoreHorizIcon style={{ flex: "0 0 auto", width: "16px", height: "16px", verticalAlign: "center", opacity: 0.5, marginRight: 4 }} />
                                    </div>
                                    <div style={{ height: "1px", width: "100%", background: this.props.theme.palette.text.secondary }}>&nbsp;</div>
                                </div>
                            </ButtonBase>
                        </div>

                        {/* LABEL/EDIT SECTION*/}
                        <div style={{ flex: "0 0 auto", position: "relative", width: 60 }}>
                        </div>
                    </div >
                );
            }
        }
    );

export default FilePropertyControl;