/*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} from './util/string-helper';
import {format_date, studyplanDates, studyplanTiming} from './util/date-helper';

export default {

    install(Vue/*,options*/){
        let strings = load_strings({
            studyplancard: {
                open: "open",
                noenddate: "noenddate",
                idnumber: "studyplan_idnumber",
                description: "studyplan_description",
                completed: "completed",
                details: "studyplan_details",
            },
            details: {
                details: "studyplan_details",
            },
            extrafields: {
                show: "show@core"
            }
        });
        // 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(){
                    return studyplanTiming(this.value);
                },
                dates(){
                    const dates = studyplanDates(this.value);
                    return {
                        start: format_date(dates.start),
                        end: (dates.end)?format_date(dates.end):this.text.noenddate,
                    };
                },
                
            },
            methods: {
                onOpenClick(e) {
                    this.$emit('open',e);
                }
            },
            template: `
            <b-card
                :class="'s-studyplan-card timing-' + timing"
            >
                <template #header></template>
                
                <div class='s-studyplan-card-content'>
                    <div class='s-studyplan-card-icon'><img :src='value.icon'></div>
                    <div class='s-studyplan-card-info'>
                        <div class='s-studyplan-card-titlebar'>
                            <b-card-title>
                                <a class='title' v-if='open' href='#' @click.prevent='onOpenClick($event)'>{{value.name}}</a>
                                <template v-else>{{value.name}}</template>
                            </b-card-title>
                            <div class='s-studyplan-card-titleslot'><slot name='title'></slot></div>
                        </div>        
                        <div class='s-studyplan-card-idnumber' v-if='value.idnumber'>
                        {{ text.idnumber }}: {{ value.idnumber }}
                        </div>
                        <s-progress-bar 
                            v-if='value.progress !== undefined && value.progress !== null'
                            v-model="value.progress"
                        ></s-progress-bar>
                    </div>
                    
                </div>
                <slot></slot>
                <template #footer>
                    <span :class="'t-timing-'+timing" v-html="dates.start + ' - '+ dates.end"></span>
                    <span class="s-studyplan-card-buttons">
                    <slot name='footer'></slot>
                    <s-studyplan-details 
                        v-model="value" 
                        v-if="value.description"
                    ><i class='fa fa-info-circle'></i></s-studyplan-details>
                    <b-button style="float:right;" v-if='open' variant='primary'
                        @click.prevent='onOpenClick($event)'>{{ text.open }}</b-button>
                    </span>
                </template>
            </b-card>
            `,
        });

        Vue.component('s-progress-bar', {
            props: {
                value: {
                    type: Number, 
                },
                min: {
                    type: Number,
                    default() { return 0;}
                },
                max: {
                    type: Number,
                    default() { return 1;}
                }
            },
            data() {
                return {
                    text: strings.studyplancard
                };
            },
            computed: {
                width_completed() {
                    if(this.value) {
                        const v = ( (this.value - this.min) / (this.max - this.min));
                        return v * 100;
                    } else {
                        return 0;
                    }
                },
                width_incomplete() {
                    if(this.value) {
                        const v = ( (this.value - this.min) / (this.max - this.min));
                        return (1-v) * 100;
                    } else {
                        return 100;
                    }
                },
                percentage_complete() {
                    if(this.value) {
                        const v = ( (this.value - this.min) / (this.max - this.min));
                        return Math.round(v * 100) + "%";
                    } else {
                        return "0%";
                    }
                }
            },
            template: `
            <div class='s-studyplan-card-progress' >
                <div class="s-studyplan-card-progressbar"
                ><span v-if="width_completed > 0"
                    :style="{width: width_completed+'%'}"
                    class='s-studyplan-card-progress-segment s-studyplan-card-progress-completed'
                ></span
                ><span :style="{width: width_incomplete+'%'}"
                    class='s-studyplan-card-progress-segment s-studyplan-card-progress-incomplete'
                ></span
                ></div>
                <div class="s-studyplan-card-progresstext">
                    {{ percentage_complete}} {{ text.completed.toLowerCase() }} 
                </div>
        </div>
            `,
        });



        /*
        * 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: {
                identifier: {
                    type: Number, // Page reference.
                    default() { return 0;}
                }
            },
            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,identifier){
                    if (this.identifier == identifier) {
                        if(this.$refs.main){
                            this.$refs.main.style.height = `${newheight}px`;
                        }
                    }
                }
            },
            template: `
            <div class="s-studyline-header-heading" ref="main" :data-id="identifier"></div>
            `,
        });

        Vue.component('s-studyline-header-period', {
            props: {
                value: {
                    type: Object, // dict with layer as index
                },
                identifier: {
                    type: Number, // Page reference.
                    default() { return 0;}
                }
            },
            mounted() {
                const self=this;
                if(self.value.period == 1){
                    self.resizeListener = new ResizeObserver(() => {
                        if(self.$refs.main){
                            const size = self.$refs.main.getBoundingClientRect();
                            ItemEventBus.$emit('headerHeightChange', size.height, self.identifier);
                        }
                    }).observe(self.$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 '" ref="main" :data-id="identifier"
                ><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 v-if="current" class='s-studyline-period-highlight'></div>
            </div>
            `,
        });


        Vue.component('s-studyplan-details', {
            props: {
                value: {
                    type: Object, 
                },
                variant: {
                    type: String,
                    default() { return "info"; }
                },
                pill: {
                    type: Boolean,
                    default() { return false; }
                },
                size: {
                    type: String,
                    default() { return "";}
                }
            },
            data() {
                return {
                    text: strings.details,
                };
            },
            template: `
            <span>
                <b-button 
                    :size="size"
                    :pill="pill"
                    :variant="variant" 
                    v-b-modal="'modal-description-'+value.id"
                ><slot><i class='fa fa-info-circle'></i>
                {{ text.details}}</slot>
                </b-button>
                <b-modal
                    :title="value.name"
                    scrollable
                    centered
                    ok-only
                    content-class="s-studyplan-details"
                    :id="'modal-description-'+value.id"
                    >
                    <b-container>
                        <b-row>
                            <b-col cols="4"><img :src='value.icon'></b-col>
                            <b-col cols="8" class="pl-1">
                                <span v-html="value.description"></span>
                            </b-col>
                        </b-row>
                    </b-container>
                </b-modal>
            </span>
            `,
        });

        Vue.component('s-course-extrafields', {
            props: {
                value: {
                    type: Array, 
                },
                variant: {
                    type: String,
                    default() { return "info"; }
                },
                position: {
                    type: String,
                    default() { return "below"; }
                },
                size: {
                    type: String,
                    default() { return "";}
                }
            },
            data() {
                return {
                    text: strings.extrafields,
                };
            },
            computed: {
                fields() {
                    const fields = [];
                    for (const ix in this.value) {
                        const field = this.value[ix];
                        if (field.position == this.position && field.value && field.value.length > 0) {
                            fields.push(field);
                        }
                    }
                    return fields;
                },
            },
            methods: {
                displaydate(field) {
                    return format_date(field.value,false);
                },
            },
            template: `
            <div :class="'s-course-extrafields ' + ((fields.length>0)?position:'empty')">
                <table v-if="fields.length > 0">
                    <tr v-for="field in fields">
                        <td><span class='title' v-if='field.title'>{{ field.title}}</span></td>
                        <td>
                        <span v-if='field.type == "date"' class="value date">{{ displaydate(field) }}</span>
                        <span v-else-if='field.type == "checkbox"' 
                        :class="'value ' + (field.checked?'true':'false')">{{ field.value }}</span>
                        <span v-else-if='field.type == "textarea"'>
                            <a class='text-info' href='#' v-b-modal="field.courseid+'_'+field.fieldname">{{text.show}}...</a>
                            <b-modal
                                :id="field.courseid+'_'+field.fieldname"
                                :title="field.title""
                                scrollable
                                centered
                                ok-only
                                ><span v-html="field.value"></span
                            ></b-modal>
                        </span>
                        <span v-else class="value"><span v-html="field.value"></span></span>
                        </td>
                    </tr>
                </table>
            </div>
            `,
        });

    }
};