Continued stupidly overengineered project.

src/auth.ts

@@ -28,15 +28,16 @@ function veryInsecureEquality(a: string, b: string): boolean{
     return a === b;
 }
 
-export async function verifyAuth(auth: string): Promise<boolean>{
-    let ret = false;
+export async function verifyAuth(auth: string): Promise<User|null>{
+    let ret: User|null = null;
     const authHash = await hash(auth);
     for (const user of users) {
         if (veryInsecureEquality(user.hash, authHash)) { // do not do that at home
-            ret = true;
+            ret = user;
         }
     }
     return ret;
 }
 
+
 console.log(await hash("2468"))

src/client.ts

@@ -1,11 +1,15 @@
 // @deno-types="https://esm.sh/@types/mithril@2.2.4"
 import m from "https://esm.sh/mithril@2.2.2"
 import {verifyAuth} from "./auth.ts";
-import {Ballot, Question} from "./shared.ts";
+import {Ballot, BallotTally, Question, QuestionTally} from "./shared.ts";
 
 
 let ballots: Ballot[] = [];
 
+function isAdmin(): boolean{
+    return  window.localStorage.getItem("isAdmin") === 'true';
+}
+
 type ProgressBarAttr = {
     question: Question,
     onchange: () => void,
@@ -144,8 +148,10 @@ class PasscodeView implements m.ClassComponent<unknown> {
 
     async verifyPasscode(event: Event): Promise<void> {
         let password = event.target.value;
-        if(await verifyAuth(password)){
+        let user = await verifyAuth(password)
+        if(user){
             window.localStorage.setItem("userId", password);
+            window.localStorage.setItem("isAdmin", user.isAdmin);
             m.route.set(`/voter-home/`);
         }
     }
@@ -160,9 +166,68 @@ class PasscodeView implements m.ClassComponent<unknown> {
 }
 
 class ResultView implements m.ClassComponent<unknown>{
-    view(){
-        return m("div", "one two three");
+    ballotTallies: BallotTally[] = [];
+    allowedToView = true;
+
+    async oninit(): Promise<void> {
+        this.allowedToView = isAdmin()
+        if(!this.allowedToView){
+            this.allowedToView = false;
+            return;
         }
+        const userId = window.localStorage.getItem("userId");
+        this.ballotTallies = await m.request(`/api/v1/results`);
+    }
+
+    resultTablesHeaders(bts: BallotTally[]):  m.Attributes{
+        return m('thead',
+            m("tr", m("th"),  bts.map(bt => m("th", {colspan: bt.questionsTally.length}, bt.name))),
+            m("tr", m("th", "User"), bts.flatMap(bt => bt.questionsTally.map(qt => m("th", qt.name)))),
+            );
+    }
+
+    getUserIds(bts: BallotTally[]): Set<string>{
+        const ret = bts.flatMap(bt => bt.questionsTally)
+            .flatMap(qt => qt.answers)
+            .map(a => a.userId);
+        return new Set(ret)
+    }
+
+    getUserResult(bt: BallotTally, userId: string): string[]{
+        return bt.questionsTally.map(qt => qt.answers.find(a => a.userId === userId)?.value?.toString()??"")
+    }
+
+    *getResultRowData(bts: BallotTally[]): Generator<{data: string[], userId: string }>{
+        for(const userId of this.getUserIds(bts)){
+            const data =  bts.flatMap(bt => this.getUserResult(bt, userId));
+            yield {data, userId};
+        }
+    }
+
+    userCell(userId: string): m.Attributes{
+        return m('th', {style: {color: 'transparent', 'text-shadow': '0 0 8px #000'}, title: userId},  userId)
+    }
+    resultBody(bts: BallotTally[]):  m.Attributes{
+        const rowData = Array.from(this.getResultRowData(bts));
+        return m('tbody', rowData.map(data => m("tr", this.userCell(data.userId), data.data.map(d => m("td", d))) ));
+    }
+
+    resultTables(fakeResults: BallotTally[]): m.Attributes {
+        return m('table.table.is-fullwidth.is-bordered',
+            [this.resultTablesHeaders(fakeResults),
+             this.resultBody(fakeResults)])
+    }
+
+    view(){
+        if(!this.allowedToView){
+            return m('div.hero.is-fullheight',
+                m("div.hero-body.has-text-centered",
+                    m("div.container",
+                        m("h1.title.is-1", ":( you are not allow to view this page"))));
+        }
+        return m("div", this.resultTables(this.ballotTallies));
+    }
+
 }
 
 class FrameView<T extends m.ClassComponent<any>> implements m.ClassComponent<unknown>{
@@ -181,6 +246,13 @@ class FrameView<T extends m.ClassComponent<any>> implements m.ClassComponent<unk
         window.localStorage.clear();
         m.route.set("/");
     }
+    resultButton(){
+        if(!isAdmin()){
+            return m("div");
+        }
+        return m(m.route.Link, {class: "button", href: "/results"}, `Results`)
+    }
+
     view(vnode: m.Vnode<unknown>): m.Children {
         return m("div", [
             m("nav.navbar.is-primary", [
@@ -189,7 +261,9 @@ class FrameView<T extends m.ClassComponent<any>> implements m.ClassComponent<unk
                     m("span.ml-1.title.is-5", "Stupidly Over Engineered Voting System")),
                 m("div.navbar-end",
                     m("div.navbar-item",
-                        m("a.is-clickable", {onclick: () => this.logout()},  "logout")))
+                        this.resultButton()),
+                    m("div.navbar-item" ,
+                        m("a.is-clickable.button", {onclick: () => this.logout()},  "logout")))
             ]),
             m(this.embedeed, vnode.attrs)
         ]);

src/server.ts

@@ -1,7 +1,7 @@
 import { Application, Router } from "https://deno.land/x/oak/mod.ts";
 import {createBundle} from "./bundler.ts";
 import {Context} from "https://deno.land/x/oak@v12.2.0/context.ts";
-import {Ballot, createDefaultBallots, Question} from "./shared.ts";
+import {Ballot, createDefaultBallots, Question, BallotTally, QuestionTally} from "./shared.ts";
 import {verifyAuth} from "./auth.ts";
 
 type QuestionAnswer = {
@@ -33,33 +33,50 @@ router.get("/", (context) => {
     `;
 });
 
+type IndexPrefix = ["soevs", "v1"];
 
-function getIndexPrefix(): string[]{
-    return ["tatoo-vote", "v1"];
+type UserPrefix = [... IndexPrefix, "user", userId: string];
+
+type UserBallotQuestionIndex = [...UserPrefix, "ballot", ballotId: string, "question", questionId: string];
+
+type BallotIndex = [...IndexPrefix, "ballot", ballotId: string];
+
+type BallotQuestionIndex = [...BallotIndex , "question", questionId: string];
+
+type BallotQuestionUserIndex = [...BallotQuestionIndex, "user", userId: string];
+
+function getIndexPrefix(): IndexPrefix{
+    return ["soevs", "v1"];
 }
 
-function getUserIndex(userId: string): string[] {
+function getUserIndex(userId: string): UserPrefix {
     const prefix = getIndexPrefix();
-    const suffix = ["user", userId];
-    return prefix.concat(suffix);
+    return [...prefix, "user", userId];
 }
 
-function getBallotQuestionIndex(ballot: Ballot, question: Question): string[]{
+function getBallotIndex(ballot: Ballot): BallotIndex{
     const prefix = getIndexPrefix();
-    const suffix = ["ballot", ballot.id, "question", question.id];
-    return prefix.concat(suffix);
+    return [...prefix, "ballot", ballot.id];
 }
 
-function getBallotQuestionUserIndex(userId: string, ballot: Ballot, question: Question): string[]{
+function getBallotIndexByBallotId(ballotId: string): BallotIndex{
+    const bogusBallot: Ballot = createDefaultBallots('bogus').find(x => x.id === ballotId)!;
+    return getBallotIndex(bogusBallot);
+}
+
+function getBallotQuestionIndex(ballot: Ballot, question: Question): BallotQuestionIndex{
+    const prefix = getBallotIndex(ballot);
+    return [...prefix, "question", question.id];
+}
+
+function getBallotQuestionUserIndex(userId: string, ballot: Ballot, question: Question): BallotQuestionUserIndex{
     const prefix = getBallotQuestionIndex(ballot, question);
-    const suffix = ["user", userId];
-    return prefix.concat(suffix);
+    return [...prefix, "user", userId];
 }
 
-function getUserBallotQuestionIndex(userId: string, ballot: Ballot, question: Question): string[]{
+function getUserBallotQuestionIndex(userId: string, ballot: Ballot, question: Question): UserBallotQuestionIndex{
     const prefix = getUserIndex(userId);
-    const suffix = ["ballot", ballot.id, "question", question.id];
-    return prefix.concat(suffix);
+    return [...prefix, "ballot", ballot.id, "question", question.id];
 }
 
 async function persistBallots(userId: string, ballots: Ballot[]): Promise<void> {
@@ -73,9 +90,9 @@ async function persistBallots(userId: string, ballots: Ballot[]): Promise<void>
     }
 }
 
-function setValueInQuestion(ballots: Ballot[], key: string[], value: number){
-    const questionId = key[7];
-    const ballotId = key[5];
+function setValueInQuestion(ballots: Ballot[], key: UserBallotQuestionIndex, value: number){
+    const questionId = key[7]; // UserBallotQuestionIndex.questionId
+    const ballotId = key[5]; // UserBallotQuestionIndex.ballotId
     for(const ballot of ballots){
         for(const question of ballot.questions){
             if(question.id === questionId && ballot.id === ballotId){
@@ -86,26 +103,78 @@ function setValueInQuestion(ballots: Ballot[], key: string[], value: number){
     return ballots;
 }
 
-async function getBallots(userId: string): Promise<Ballot[]>{
-    let ballots = createDefaultBallots();
+async function getUserBallots(userId: string): Promise<Ballot[]>{
+    let ballots = createDefaultBallots(userId);
     const kv = await Deno.openKv();
     const entries = kv.list<QuestionAnswer>({ prefix: getUserIndex(userId) });
     for await (const entry of entries) {
-        const key = entry.key; // ["users", "alice"]
-        const value = entry.value.value; // { name: "Alice" }
-        ballots = setValueInQuestion(ballots, key, value);
+        const key = entry.key;
+        const value = entry.value.value;
+        ballots = setValueInQuestion(ballots, key as UserBallotQuestionIndex, value);
     }
     return ballots;
 }
 
-async  function getBallotResults(){
-    let ballots = createDefaultBallots();
-    for(const ballot of ballots){
+function createEmptyResult(b: Ballot): BallotTally {
+    return {
+        ballotId: b.id,
+        name: b.name,
+        questionsTally: [],
+    };
+}
 
+async function compactifyQuestionTally(tallies: QuestionTally[]): Promise<QuestionTally[]>{
+    const ret: QuestionTally[] = [];
+    for(const subTallies of Object.values(Object.groupBy(tallies, (t) => t.questionId))){
+        ret.push({
+            questionId: subTallies[0].questionId,
+            name: subTallies[0].name,
+            longName: subTallies[0].longName,
+            answers: subTallies.map(t => t.answers).flat(),
+        });
+    }
+    return ret;
+}
+
+function getQuestionsMappedById(ballotId: string): Record<string, Question>{
+    const templateBallot: Ballot = createDefaultBallots('bogus').find(x => x.id === ballotId)!;
+    return templateBallot.questions.reduce((acc, x: Question) => {acc[x.id] = x; return acc}, {});
+}
+
+function createSimpleQuestionTally(question: Question, userId: string, value: number): QuestionTally{
+    return {
+        questionId: question.id,
+        name: question.name,
+        longName: question.longName,
+        answers: [{userId, value}],
+    }
+}
+async function* getBallotsByBallotId(ballotId: string): AsyncGenerator<QuestionTally>{
+    const questions = getQuestionsMappedById(ballotId);
+    const kv = await Deno.openKv();
+    const entries = kv.list<QuestionAnswer>({ prefix: getBallotIndexByBallotId(ballotId) });
+    for await (const entry of entries) {
+        const key = entry.key as BallotQuestionUserIndex;
+        const questionId = key[5];
+        const question = questions[questionId];
+        yield createSimpleQuestionTally(question, key[7], entry.value.value);
     }
 }
 
-router.post("/api/v1/vote/:userid", async (ctx: Context)=> {
+async function getQuestionTallies(ballotId: string): Promise<QuestionTally[]> {
+    const ballots = getBallotsByBallotId(ballotId);
+    return compactifyQuestionTally(await  Array.fromAsync(ballots));
+}
+
+async function getBallotTallies(userId: string): Promise<BallotTally[]>{
+    const ret = createDefaultBallots(userId).map(createEmptyResult);
+    for(const res of ret) {
+        res.questionsTally = await getQuestionTallies(res.ballotId);
+    }
+    return ret;
+}
+
+router.post("/api/v1/vote/:userid", async (ctx): Promise<void> => {
     const userId: string = ctx?.params?.userid??"";
     if(!await verifyAuth(userId)){
         ctx.throw(403)
@@ -119,16 +188,17 @@ router.post("/api/v1/vote/:userid", async (ctx: Context)=> {
     ctx.response.body = userId;
 });
 
-router.get("/api/v1/vote/:userid", async (ctx: Context)=> {
+router.get("/api/v1/vote/:userid", async (ctx)=> {
     const userId = ctx?.params?.userid??"";
     if(!await verifyAuth(userId)){
         ctx.throw(403)
     }
-    ctx.response.body = await getBallots(userId);
+    ctx.response.body = await getUserBallots(userId);
 });
 
-router.get("/api/v1/results", async (ctx: Context) =>{
-    ctx.response.body = await getBallotResults();
+router.get("/api/v1/results", async (context): Promise<void> => {
+    const userId = '1234';
+    context.response.body = await getBallotTallies(userId);
 });
 
 router.get("/client.js", async (context): Promise<void> => {
@@ -153,3 +223,5 @@ app.use((ctx) => {
 await app.listen({ port: 3333 });
 
 
+
+

src/shared.ts

@@ -9,9 +9,24 @@ export type Question = {
 export type Ballot = {
     id: string,
     name: string,
+    userId: string,
     questions: Question[],
 }
 
+export type QuestionTally = {
+    name: string,
+    longName: string,
+    questionId: string,
+    answers: {userId: string, value: number}[]
+}
+
+export type BallotTally = {
+    ballotId: string,
+    name: string,
+    questionsTally: QuestionTally[],
+
+}
+
 function defaultQuestions(): Question[]{
     return [
         {id: "5242", name: "readme", value: 25, longName: "Qualité du README"},
@@ -21,10 +36,10 @@ function defaultQuestions(): Question[]{
 }
 
 
-export function createDefaultBallots(): Ballot[]{
+export function createDefaultBallots(userId: string): Ballot[]{
     return [
-        {id: "5gg64", name: "Les chacals de laval", questions: defaultQuestions()},
-        {id: "ys68", name: "Les rapides de blainville", questions: defaultQuestions()},
-        {id: "ssw", name: "Les pas-beaux du plateau", questions: defaultQuestions()},
+        {id: "5gg64", name: "Les chacals de laval", userId: userId, questions: defaultQuestions()},
+        {id: "ys68", name: "Les rapides de blainville",  userId: userId, questions: defaultQuestions()},
+        {id: "ssw", name: "Les pas-beaux du plateau",  userId: userId, questions: defaultQuestions()},
     ];
 }