239 lines
10 KiB
TypeScript
239 lines
10 KiB
TypeScript
const Papa = require("papaparse");
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const errors = require("./errors.js");
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import { papaParseDatas, papaParseErrors, papaParseMeta } from "./papaParseInterfaces";
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import { domElement, selectors } from "./freeDatas2HTMLInterfaces";
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export class freeDatas2HTML
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{
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private _datasViewElt: domElement = { id:"", eltDOM:undefined };
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private _datasSourceUrl: string = "";
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private _datasSelectors: selectors[] = [];
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public parseMeta: papaParseMeta|undefined = undefined;
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public parseDatas: papaParseDatas[] = [];
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public parseErrors: papaParseErrors[] = [];
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public datasHTML: string = "";
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public stopIfParseErrors: boolean = false;
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set datasViewElt(elt: domElement)
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{
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let checkContainerExist=document.getElementById(elt.id);
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if(checkContainerExist === null)
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throw new Error(errors.elementNotFound+elt.id);
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else
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{
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this._datasViewElt.id=elt.id;
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this._datasViewElt.eltDOM=checkContainerExist;
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}
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}
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set datasSourceUrl(url: string)
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{
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if(url.trim().length === 0)
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throw new Error(errors.needUrl);
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else
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this._datasSourceUrl=url.trim();
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}
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set datasSelectors(selectionElts: selectors[])
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{
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this._datasSelectors=[];
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let checkContainerExist: HTMLElement|null;
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for(let i = 0; i < selectionElts.length; i++)
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{
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checkContainerExist=document.getElementById(selectionElts[i].id);
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if(checkContainerExist === null)
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console.error(errors.elementNotFound+selectionElts[i].id);
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else if(Number.isInteger( selectionElts[i].datasFieldNb) === false || selectionElts[i].datasFieldNb < 0)
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console.error(errors.needNaturalNumber);
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else
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{
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selectionElts[i].eltDOM=checkContainerExist;
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if(selectionElts[i].separator !== undefined && selectionElts[i].separator === "")
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selectionElts[i].separator=undefined;
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this._datasSelectors.push(selectionElts[i]);
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}
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}
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}
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get datasSelectors() : selectors[]
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{
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return this._datasSelectors;
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}
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public async parse(): Promise<any>
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{
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const converter=this;
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return new Promise((resolve,reject) =>
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{
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if(converter._datasSourceUrl !== "" )
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{
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Papa.parse(converter._datasSourceUrl,
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{
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quoteChar: '"',
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header: true,
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complete: function(results :any)
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{
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converter.parseErrors=results.errors;
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converter.parseDatas=results.data;
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// Attention, papaParse peut accepter un nom de colonne vide
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let realFields: string[]=[];
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for(let i in results.meta.fields)
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{
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if(results.meta.fields[i].trim() !== "")
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realFields.push(results.meta.fields[i]);
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}
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results.meta.fields=realFields;
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converter.parseMeta=results.meta;
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resolve(true);
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},
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error:function(error :any)
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{
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reject(new Error(errors.parserFail));
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},
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download: true,
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skipEmptyLines: true,
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});
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}
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else
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reject(new Error(errors.needUrl));
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});
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}
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public async run(): Promise<any>
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{
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if (this._datasViewElt.eltDOM === undefined)
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throw new Error(errors.needDatasElt);
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if(this._datasSourceUrl === "" )
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throw new Error(errors.needUrl);
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await this.parse();
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if(this.parseDatas.length === 0 || this.parseMeta!.fields === undefined) // je force avec "!", car l'existence de parseMeta est certaine après parse().
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throw new Error(errors.datasNotFound);
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else if(this.stopIfParseErrors && this.parseErrors.length!==0)
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console.error(this.parseErrors);
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else
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{
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let converter=this;
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// Affichage initial de toutes les données du fichier
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this.datasHTML=this.createDatasHTML(this.parseMeta!.fields, this.parseDatas);
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this._datasViewElt.eltDOM.innerHTML=this.datasHTML;
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// Si demandé, création des listes permettant de filter les données
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if(this._datasSelectors.length > 0)
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{
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let selectorsHTML : string [] = [];
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for(let i in this._datasSelectors)
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{
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// Les colonnes devant servir de filtre existent-elles vraiment dans le fichier ?
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if(this._datasSelectors[i].datasFieldNb > (this.parseMeta!.fields.length-1))
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throw new Error(errors.selectorFieldNotFound);
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else
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{
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let values=[], colName=this.parseMeta!.fields[this._datasSelectors[i].datasFieldNb];
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for (let row in this.parseDatas)
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{
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if(this._datasSelectors[i].separator === undefined)
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{
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let checkedValue=this.parseDatas[row][colName].trim();
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// On ne garde pas les données vides (prévoir possible en option pour pouvoir sélectionner les données non classées sur cette colonne ?)
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if(checkedValue !== "" && values.indexOf(checkedValue) === -1)
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values.push(checkedValue);
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}
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else
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{
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let checkedValues=this.parseDatas[row][colName].split(this._datasSelectors[i].separator as string);
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for(let i in checkedValues)
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{
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let checkedValue=checkedValues[i].trim();
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if(checkedValue !== "" && values.indexOf(checkedValue) === -1)
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values.push(checkedValue);
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}
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}
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}
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if(values.length > 0)
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{
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values.sort();
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this._datasSelectors[i].name=colName;
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this._datasSelectors[i].values=values;
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selectorsHTML[i]="<label for='freeDatas2HTMLSelector"+i+"'>"+colName+" : </label><select name='freeDatas2HTMLSelector"+i+"' id='freeDatas2HTMLSelector"+i+"'><option value='0'>----</option>";
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for(let j in values)
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selectorsHTML[i]+="<option value='"+(Number(j)+1)+"'>"+values[j]+"</option>";
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selectorsHTML[i]+="</select>";
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this._datasSelectors[i].eltDOM!.innerHTML=selectorsHTML[i];
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let selectElement = document.getElementById("freeDatas2HTMLSelector"+i) as HTMLInputElement;
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selectElement.addEventListener('change', function(e)
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{
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converter.datasHTML=converter.createDatasHTML(converter.parseMeta!.fields as string[], converter.parseDatas);
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converter._datasViewElt.eltDOM!.innerHTML=converter.datasHTML;
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});
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}
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}
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}
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}
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return true;
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}
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}
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private createDatasHTML(fields: string[], datas: any[]) : string
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{
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// Je vérifie si des valeurs ont été sélectionnées pour filter les données.
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let checkSelectorExist: HTMLSelectElement|null, filters: any[] = [];
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for(let i in this._datasSelectors)
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{
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// Attention : je peux avoir des _datasSelectors fournis, mais pas de liste dans le DOM si aucune donnée ou autre problème.
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checkSelectorExist=document.querySelector("#"+ this._datasSelectors[i].id+" select");
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if(checkSelectorExist != null && checkSelectorExist.selectedIndex != 0)
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filters.push({ field: this._datasSelectors[i].name, value: this._datasSelectors[i].values![checkSelectorExist.selectedIndex-1], separator:this._datasSelectors[i].separator });
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}
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// Création du tableau de données :
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let datasHTML="<table><thead>";
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for (let i in fields)
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datasHTML+="<th>"+fields[i]+"</th>";
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datasHTML+="</thead><tbody>";
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for (let row in datas)
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{
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let visible=true;
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if(filters.length !== 0)
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{
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for(let i in filters)
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{
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// Il faut réutiliser le trim() utilisé pour créer les filtres, sinon on risque de ne pas retrouver certaines valeurs
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if(filters[i].separator === undefined)
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{
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if(datas[row][filters[i].field].trim() != filters[i].value)
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visible=false;
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}
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else
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{
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visible=false;
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let checkedValues=datas[row][filters[i].field].split(filters[i].separator as string);
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for(let j in checkedValues)
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{
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if(checkedValues[j].trim() === filters[i].value)
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{
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visible=true;
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break;
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}
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}
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}
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}
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}
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if(visible)
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{
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datasHTML+="<tr>";
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for(let field in datas[row])
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{
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// Attention : si les erreurs papaParse ne sont pas bloquantes, il peut y avoir des données en trop, avec comme nom de colonne : "__parsed_extra"
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if(fields.indexOf(field) !== -1)
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datasHTML+="<td>"+datas[row][field]+"</td>";
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}
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datasHTML+="</tr>";
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}
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}
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datasHTML+="</tbody></table>";
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return datasHTML;
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}
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} |