From c5c3b53eb8cb67fedbe432aba8ac4b952f4fd46f Mon Sep 17 00:00:00 2001
From: frankknoll <Knoll_Frank@web.de>
Date: Sun, 15 Oct 2023 11:55:58 +0200
Subject: [PATCH] starting to make prrByVaccineTable downloadable

---
 .../js/PageInitializer.js                     |  4 ++--
 .../js/PrrByVaccineTableView.js               | 23 +++++++++++++++++--
 docs/UIUtils.js                               |  7 ++++++
 3 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/docs/SymptomsCausedByVaccines/js/PageInitializer.js b/docs/SymptomsCausedByVaccines/js/PageInitializer.js
index ecb2e9fbb9d..d503f8f433f 100644
--- a/docs/SymptomsCausedByVaccines/js/PageInitializer.js
+++ b/docs/SymptomsCausedByVaccines/js/PageInitializer.js
@@ -5,8 +5,8 @@ class PageInitializer {
         PageInitializer.#configureVaccine(vaccine);
     }
 
-    static #configureSymptom({ symptomSelectElement, prrByVaccineTableElement }) {
-        const prrByVaccineTableView = new PrrByVaccineTableView(prrByVaccineTableElement);
+    static #configureSymptom({ symptomSelectElement, prrByVaccineTableElement, downloadPrrByVaccineTableButton }) {
+        const prrByVaccineTableView = new PrrByVaccineTableView(prrByVaccineTableElement, downloadPrrByVaccineTableButton);
         PageInitializer.#initializeSelectElement(
             {
                 selectElement: symptomSelectElement,
diff --git a/docs/SymptomsCausedByVaccines/js/PrrByVaccineTableView.js b/docs/SymptomsCausedByVaccines/js/PrrByVaccineTableView.js
index 00b4fa8530d..5aa012c9d00 100644
--- a/docs/SymptomsCausedByVaccines/js/PrrByVaccineTableView.js
+++ b/docs/SymptomsCausedByVaccines/js/PrrByVaccineTableView.js
@@ -1,15 +1,34 @@
 class PrrByVaccineTableView {
 
     #prrByVaccineTable;
+    #prrByVaccine;
+    #symptom;
 
-    constructor(prrByVaccineTableElement) {
+    constructor(prrByVaccineTableElement, downloadPrrByVaccineTableButton) {
         this.#prrByVaccineTable = new PrrByVaccineTable(prrByVaccineTableElement);
         this.#prrByVaccineTable.initialize();
+        downloadPrrByVaccineTableButton.addEventListener(
+            'click',
+            () => this.#downloadPrrByVaccine())
     }
 
     displayPrrByVaccineTable4Symptom(symptom) {
         PrrByVaccineProvider
             .getPrrByVaccine(symptom)
-            .then(prrByVaccine => this.#prrByVaccineTable.display(prrByVaccine));
+            .then(prrByVaccine => {
+                this.#prrByVaccine = prrByVaccine;
+                this.#symptom = symptom;
+                this.#prrByVaccineTable.display(prrByVaccine);
+            });
+    }
+
+    #downloadPrrByVaccine() {
+        UIUtils.downloadUrlAsFilename(
+            window.URL.createObjectURL(
+                new Blob(
+                    [Utils.convertDict2CSV(this.#prrByVaccine)],
+                    { type: 'text/csv' })),
+            this.#symptom
+        );
     }
 }
diff --git a/docs/UIUtils.js b/docs/UIUtils.js
index 76050bd0dd0..bc113a0c328 100644
--- a/docs/UIUtils.js
+++ b/docs/UIUtils.js
@@ -68,4 +68,11 @@ class UIUtils {
     static isSearchParamYES(urlParams, searchParam) {
         return UIUtils.getSearchParam(urlParams, searchParam, 'NO').toUpperCase() == 'YES';
     }
+
+    static downloadUrlAsFilename(url, filename) {
+        const a = document.createElement('a');
+        a.setAttribute('href', url);
+        a.setAttribute('download', filename);
+        a.click();
+    }
 }