/*eslint no-var: "error"*/
/*eslint no-console: "off"*/
/*eslint-disable no-trailing-spaces */
/*eslint-env es6*/
// Put this file in path/to/plugin/amd/src

import {load_strings, format_date} from './string-helper';

export default {
    studyplanTiming(a) {
        const now = new Date().getTime();
        let timing = 'future';
        if(new Date(a.startdate).getTime() < now){
            if(a.enddate && now > new Date(a.enddate).getTime()) {
                timing = 'past';
            } else {
                timing = 'present';
            }
        }
        return timing;
    },

    install(Vue/*,options*/){
        let strings = load_strings({
            studyplancard: {
                open: "open",
                noenddate: "noenddate",
            }
        });
        // Create new eventbus for interaction between item components
        const ItemEventBus = new Vue();

        Vue.component('s-studyplan-card', {
            props: {
                value: {
                    type: Object,
                },
                open: {
                    type: Boolean
                }
            },
            data() {
                return {
                    text: strings.studyplancard
                };
            },
            computed: {
                timing(){
                    const now = new Date().getTime();
                    const startdate = new Date(this.value.pages[0].startdate).getTime();
                    const enddate = new Date(this.value.pages[0].enddate).getTime();
                    let timing = 'future';
                    if(startdate < now){
                        if(this.value.pages[0].enddate && now > enddate) {
                            timing = 'past';
                        } else {
                            timing = 'present';
                        }
                    }
                    return timing;
                },
                startdate(){
                    return format_date(this.value.pages[0].startdate);
                },
                enddate(){
                    if(this.value.enddate){
                        return format_date(this.value.pages[0].enddate);
                    } 
                    else {
                        return this.text.noenddate;
                    }
                }
            },
            methods: {
                onOpenClick(e) {
                    this.$emit('open',e);
                }
            },
            template: `
            <b-card 
                :class="'s-studyplan-card timing-' + timing"
            >
                <template #header></template>
                <b-card-title>
                    <a v-if='open' href='#' @click.prevent='onOpenClick($event)'>{{value.name}}</a>
                    <template v-else>{{value.name}}</template>
                    <slot name='title'></slot>
                </b-card-title>
                {{ value.description }}
                <slot></slot>
                <template #footer>
                    <span :class="'t-timing-'+timing" v-html="startdate + ' - '+ enddate"></span>
                    <span class="s-studyplan-card-buttons">
                    <slot name='footer'></slot>
                    <b-button style="float:right;" v-if='open' variant='primary' 
                        @click.prevent='onOpenClick($event)'>{{ text.open }}</b-button>
                    </span>
                </template>
            </b-card>
            `,
        });

        /*
        * S-STUDYLINE-HEADER-HEADING
        * The only reasing this is not a simple empty div, is the fact that the header height
        * needs to match that of the period headers
        */
        Vue.component('s-studyline-header-heading', {
            props: {

            },
            data() {
                return {
                    layerHeights: {}
                };
            },
            created() {
                // Listener for the signal that a new connection was made and needs to be drawn
                // Sent by the incoming item  - By convention, outgoing items are responsible for drawing the lines
                ItemEventBus.$on('headerHeightChange', this.onHeaderHeightChange);
            },
            computed: {
                
            },
            methods: {
                onHeaderHeightChange(newheight){
                    if(this.$refs.main){
                        this.$refs.main.style.height = `${newheight}px`;
                    }
                }
            },
            template: `
            <div class="s-studyline-header-heading" ref="main"></div>
            `,
        });

        Vue.component('s-studyline-header-period', {
            props: {
                value: {
                    type: Object, // dict with layer as index
                },
            },
            mounted() {
                const self=this;
                if(self.value.period == 1){
                    self.resizeListener = new ResizeObserver(() => {
                        if(self.$refs.main){
                            const size = self.$refs.main.getBoundingClientRect();
                            ItemEventBus.$emit('headerHeightChange', size.height);
                        }
                    }).observe(self.$refs.main);
                }
            },
            unmounted() {
                if(this.resizeListener) {
                    this.resizeListener.disconnect();
                }
            },
            computed: {
                startdate(){
                    return format_date(this.value.startdate);
                },
                enddate(){
                    return format_date(this.value.enddate);
                },
                current(){
                    if( this.value && this.value.startdate && this.value.enddate){
                        const now = new Date();
                        const pstart = new Date(this.value.startdate);
                        const pend = new Date(this.value.enddate);
                        return (now >= pstart && now < pend);
                    }
                    else {
                        return false;
                    }
                }

            },
            data() {
                return {
                };
            },
            template: `
            <div :class="'s-studyline-header-period ' + (current?'current ':' ')" ref="main"
                ><p><abbr :id="'s-period-'+value.id" :title="value.fullname">{{ value.shortname }}</abbr>
                <b-tooltip
                    :target="'s-period-'+value.id" triggers="hover"
                    >{{ value.fullname }}<br>
                    <span class="s-studyline-header-period-datespan">
                        <span class="date">{{ startdate }}</span> - <span class="date">{{ enddate }}</span>
                    </span>
                </b-tooltip>
                <slot></slot
                ><p class="s-studyline-header-period-datespan small">
                    <span class="date">{{ startdate }}</span> - <span class="date">{{ enddate }}</span>
                </p>
            </div>
            `,
        });


    }
};