import mongoose from 'mongoose';

var Schema = mongoose.Schema;

var ExamsSchema = new Schema({

subject: String,

examDate: Date,

score: Number,

result: {type: String, enum: ['distinction', 'merit', 'pass', 'fail']},

grader: { type: Schema.Types.ObjectId, ref: 'b_using_options', form: {select2: {fngAjax: true}, label:'Marked by'}},

retakeDate: {type: Date, form: {showWhen: {lhs: '$exams.result', comp: 'eq', rhs: 'fail'}}}

}, {_id: false});

var FSchema = new Schema({

surname: {type: String, index: true, list: {}},

forename: {type: String, index: true, list: true},

aTest: { type: Schema.Types.ObjectId, ref: 'b_using_options'},

// exams: [ExamsSchema] // defaults to horizontal compact form

// or

exams: {type: [ExamsSchema], form: {formStyle: 'inline'}}

});

var F;

try {

F = mongoose.model('F');

} catch (e) {

F = mongoose.model('F', FSchema);

}

F.prototype.searchResultFormat = function (req) {

// You can set up a function to modify search result display and the

// ordering within a collection

let weighting;

weighting = this.forename === 'John' ? 2 : 3;

const retVal = {

resource: 'f_nested_schema',

resourceText: 'Exams',

id: this._id,

weighting: weighting,

text: this.surname + (this.forename ? ', ' + this.forename : '')

};

if (req.query && req.query.q && req.query.q.length > 0) {

if (req.query.q.slice(0, 6).toLowerCase() === 'exams:') {

retVal.resourceText = ' ';

} else if (req.query.q.slice(0, 8).toLowerCase() === 'retakes:') {

retVal.resourceText = 'Retakes';

}

}

return Promise.resolve(retVal);

};

FSchema.statics.form = function (layout) {

var formSchema = '';

switch (layout) {

case 'English' :

// Just the English exam from the array

formSchema = {

surname: {},

forename: {},

exams: {subkey: {keyList: {subject: 'English'}, containerType: 'well', title: 'English Exam'}}

};

break;

case 'EnglishAndMaths' :

// English and Maths exams from the array

formSchema = {

surname: {},

forename: {},

exams: {subkey: [

{keyList: {subject: 'English'}, containerType: 'well', title: 'English Exam'},

{keyList: {subject: 'Maths'}, containerType: 'well', title: 'Maths Exam'}

]}

};

break;

case 'ResultsOnly' :

// Demonstration of specifying fields within sub schemas in a form schema

formSchema = {

surname: {},

forename: {},

exams: {schema: {

subject: {},

result: {label: 'Outcome'}

}}

};

break;

}

return formSchema;

};

export default {

model: F,

synonyms: [{name:'exams'}, {name: 'retakes', filter:{'exams.result':'fail'}}],

searchResultFormat: F.prototype.searchResultFormat

};