import React from "react" ;
import { Link } from "react-router-dom" ;
import { Menu, MenuList, MenuButton, MenuItem } from "@reach/menu-button" ;
import { PublisherSearchResult2 } from "./PublisherSearchResult2.js"
import "./PublisherSearchResult.css" ;
import { PublicationSearchResult } from "./PublicationSearchResult.js"
import { PreviewableImage } from "./PreviewableImage.js" ;
import { PUBLISHER_EXCESS_PUBLICATION_THRESHOLD, PUBLISHER_EXCESS_ARTICLE_THRESHOLD } from "./constants.js" ;
import { gAppRef } from "./App.js" ;
import { makeCollapsibleList, pluralString, updateRecord } from "./utils.js" ;

const axios = require( "axios" ) ;

// --------------------------------------------------------------------

export class PublisherSearchResult extends React.Component
{

    render() {

        // prepare the basic details
        const display_name = this._makeDisplayName() ;
        const display_description = PreviewableImage.adjustHtmlForPreviewableImages(
            this.props.data[ "publ_description!" ] || this.props.data.publ_description
        ) ;
        const image_url = gAppRef.makeFlaskImageUrl( "publisher", this.props.data.publ_image_id ) ;

        // prepare the publisher's URL
        let publ_url = this.props.data.publ_url ;
        if ( publ_url )
            publ_url = gAppRef.makeExternalDocUrl( publ_url ) ;

        // prepare the publications
        let pubs = this.props.data.publications ;
        pubs.sort( (lhs,rhs) => {
            if ( lhs.pub_seqno && rhs.pub_seqno )
                return rhs.pub_seqno - lhs.pub_seqno ;
            else if ( lhs.pub_seqno )
                return +1 ;
            else if ( rhs.pub_seqno )
                return -1 ;
            else
                return rhs.time_created - lhs.time_created ; // nb: we compare timestamps for back-compat
        } ) ;
        pubs = pubs.map( p => <Link title="Show this publication."
            to = { gAppRef.makeAppUrl( "/publication/" + p.pub_id ) }
            dangerouslySetInnerHTML = {{ __html: PublicationSearchResult.makeDisplayName(p) }}
        /> ) ;

        // prepare any associated articles
        let articles = [] ;
        if ( this.props.data.articles ) {
            articles = this.props.data.articles.map( a => <Link title="Show this article."
                to = { gAppRef.makeAppUrl( "/article/" + a.article_id ) }
                dangerouslySetInnerHTML = {{ __html: a.article_title }}
            /> ) ;
            articles.reverse() ;
        }

        // prepare the menu
        const menu = ( <Menu>
            <MenuButton className="sr-menu" />
            <MenuList>
                <MenuItem className="edit" onSelect={ () => this.onEditPublisher() } >
                    <img src="/images/edit.png" alt="Edit." /> Edit
                </MenuItem>
                <MenuItem className="delete" onSelect={ () => this.onDeletePublisher() } >
                    <img src="/images/delete.png" alt="Delete." /> Delete
                </MenuItem>
            </MenuList>
        </Menu> ) ;

        return ( <div className="search-result publisher"
                    ref = { r => gAppRef.setTestAttribute( r, "publ_id", this.props.data.publ_id ) }
            >
            <div className="header">
                {menu}
                <Link className="name" title="Show this publisher."
                    to = { gAppRef.makeAppUrl( "/publisher/" + this.props.data.publ_id ) }
                    dangerouslySetInnerHTML={{ __html: display_name }}
                />
                { publ_url &&
                    <a href={publ_url} className="open-link" target="_blank" rel="noopener noreferrer">
                        <img src="/images/open-link.png" alt="Open publisher." title="Go to this publisher." />
                    </a>
                }
            </div>
            <div className="content">
                { image_url && <PreviewableImage url={image_url} noActivate={true} className="image" alt="Publisher." /> }
                <div className="description" dangerouslySetInnerHTML={{__html: display_description}} />
                { makeCollapsibleList( "Publications", pubs, PUBLISHER_EXCESS_PUBLICATION_THRESHOLD, {float:"left"} ) }
                { makeCollapsibleList( "Articles", articles, PUBLISHER_EXCESS_ARTICLE_THRESHOLD, {clear:"both",float:"left"} ) }
            </div>
            <div className="footer" />
        </div> ) ;
    }

    componentDidMount() {
        PreviewableImage.activatePreviewableImages( this ) ;
    }

    static onNewPublisher() {
        gAppRef.dataCache.get( [ "publishers", "publications" ], () => {
            PublisherSearchResult2._doEditPublisher( {}, (newVals,refs) => {
                axios.post(
                    gAppRef.makeFlaskUrl( "/publisher/create" ), newVals
                ).then( resp => {
                    gAppRef.dataCache.refresh( [ "publishers" ] ) ;
                    // update the UI
                    const newPubl = resp.data.record ;
                    gAppRef.prependSearchResult( newPubl ) ;
                    // update the UI
                    if ( resp.data.warnings )
                        gAppRef.showWarnings( "The new publisher was created OK.", resp.data.warnings ) ;
                    else
                        gAppRef.showInfoToast( <div> The new publisher was created OK. </div> ) ;
                    gAppRef.closeModalForm() ;
                } ).catch( err => {
                    gAppRef.showErrorMsg( <div> Couldn't create the publisher: <div className="monospace"> {err.toString()} </div> </div> ) ;
                } ) ;
            } ) ;
        } ) ;
    }

    onEditPublisher() {
        gAppRef.dataCache.get( [ "publishers", "publications" ], () => {
            PublisherSearchResult2._doEditPublisher( this.props.data, (newVals,refs) => {
                // send the updated details to the server
                newVals.publ_id = this.props.data.publ_id ;
                axios.post(
                    gAppRef.makeFlaskUrl( "/publisher/update" ), newVals
                ).then( resp => {
                    gAppRef.dataCache.refresh( [ "publishers" ], () => {
                        // update the UI
                        const publ = resp.data.record ;
                        updateRecord( this.props.data, publ ) ;
                        for ( let pub of publ.publications )
                            gAppRef.updatePublication( pub.pub_id ) ;
                        // update the UI
                        if ( newVals.imageData )
                            gAppRef.forceFlaskImageReload( "publisher", newVals.publ_id ) ;
                        this.forceUpdate() ;
                        PreviewableImage.activatePreviewableImages( this ) ;
                        // update the UI
                        if ( resp.data.warnings )
                            gAppRef.showWarnings( "The publisher was updated OK.", resp.data.warnings ) ;
                        else
                            gAppRef.showInfoToast( <div> The publisher was updated OK. </div> ) ;
                        gAppRef.closeModalForm() ;
                    } ) ;
                } ).catch( err => {
                    gAppRef.showErrorMsg( <div> Couldn't update the publisher: <div className="monospace"> {err.toString()} </div> </div> ) ;
                } ) ;
            } );
        } ) ;
    }

    onDeletePublisher() {
        let doDelete = ( nPubs, nArticles ) => {
            // confirm the operation
            let warning ;
            if ( typeof nPubs !== "number" ) {
                // something went wrong when getting the number of associated publications/articles
                // (we can continue, but we warn the user)
                warning = ( <div> <img className="icon" src="/images/error.png" alt="Error." />
                    WARNING: Couldn't check if any publications or articles will also be deleted:
                    <div className="monospace"> {nPubs.toString()} </div>
                </div> ) ;
            } else if ( nPubs === 0 && nArticles === 0 )
                warning = <div> No publications nor articles will be deleted. </div> ;
            else {
                let vals = [] ;
                if ( nPubs > 0 )
                    vals.push( pluralString( nPubs, "publication" ) ) ;
                if ( nArticles > 0 )
                    vals.push( pluralString( nArticles, "article" ) ) ;
                warning = <div> {warning} { vals.join(" and ") + " will also be deleted." } </div> ;
            }
            let content = ( <div>
                Delete this publisher?
                <div style={{margin:"0.5em 0 0.5em 2em",fontStyle:"italic"}} dangerouslySetInnerHTML={{__html: this._makeDisplayName()}} />
                {warning}
            </div> ) ;
            gAppRef.ask( content, "ask", {
                "OK": () => {
                    // delete the publisher on the server
                    axios.get(
                        gAppRef.makeFlaskUrl( "/publisher/delete/" + this.props.data.publ_id )
                    ).then( resp => {
                        gAppRef.dataCache.refresh( [ "publishers", "publications" ] ) ;
                        // update the UI
                        this.props.onDelete( "publ_id", this.props.data.publ_id ) ;
                        resp.data.deletedPublications.forEach( pub_id => {
                            this.props.onDelete( "pub_id", pub_id, true ) ;
                        } ) ;
                        resp.data.deletedArticles.forEach( article_id => {
                            this.props.onDelete( "article_id", article_id, true ) ;
                        } ) ;
                        // update the UI
                        if ( resp.data.warnings )
                            gAppRef.showWarnings( "The publisher was deleted.", resp.data.warnings ) ;
                        else
                            gAppRef.showInfoToast( <div> The publisher was deleted. </div> ) ;
                    } ).catch( err => {
                        gAppRef.showErrorToast( <div> Couldn't delete the publisher: <div className="monospace"> {err.toString()} </div> </div> ) ;
                    } ) ;
                },
                "Cancel": null,
            } ) ;
        } ;
        // get the publisher details
        axios.get(
            gAppRef.makeFlaskUrl( "/publisher/" + this.props.data.publ_id )
        ).then( resp => {
            doDelete( resp.data.nPublications, resp.data.nArticles ) ;
        } ).catch( err => {
            doDelete( err ) ;
        } ) ;
    }

    static makeDisplayName( vals ) {
        // return the publisher's display name
        return vals["publ_name!"] || vals.publ_name ;
    }
    _makeDisplayName() { return PublisherSearchResult.makeDisplayName( this.props.data ) ; }

}