From d1388d9ca9a2c28ea50d252548204daa99693ffd Mon Sep 17 00:00:00 2001
From: wuya666 <30381159+wuya666@users.noreply.github.com>
Date: Thu, 13 Jun 2019 05:47:54 +0800
Subject: [PATCH] fizzbot nodejs solver

---
 fizznodejs/.gitignore        |   2 +
 fizznodejs/README.md         |   5 ++
 fizznodejs/fizzsolver.js     | 153 +++++++++++++++++++++++++++++++++++
 fizznodejs/package-lock.json |  13 +++
 fizznodejs/package.json      |  15 ++++
 5 files changed, 188 insertions(+)
 create mode 100644 fizznodejs/.gitignore
 create mode 100644 fizznodejs/README.md
 create mode 100644 fizznodejs/fizzsolver.js
 create mode 100644 fizznodejs/package-lock.json
 create mode 100644 fizznodejs/package.json

diff --git a/fizznodejs/.gitignore b/fizznodejs/.gitignore
new file mode 100644
index 0000000..e212594
--- /dev/null
+++ b/fizznodejs/.gitignore
@@ -0,0 +1,2 @@
+
+node_modules
diff --git a/fizznodejs/README.md b/fizznodejs/README.md
new file mode 100644
index 0000000..7865a48
--- /dev/null
+++ b/fizznodejs/README.md
@@ -0,0 +1,5 @@
+## Usage:
+
+`npm install`
+
+`npm start`
diff --git a/fizznodejs/fizzsolver.js b/fizznodejs/fizzsolver.js
new file mode 100644
index 0000000..35b181d
--- /dev/null
+++ b/fizznodejs/fizzsolver.js
@@ -0,0 +1,153 @@
+"use strict";
+
+const fetch = require("node-fetch");
+const basePath = "https://api.noopschallenge.com";
+const startPath = "/fizzbot";
+
+// GET method with node-fetch
+async function tryGet(url) {
+    let result = {};
+
+    try {
+        let response = await fetch(url);
+        result = await response.json();
+    } catch (error) {
+        console.log("Something Bad Happened!!")
+        console.log(error);
+    }
+
+    return result;
+}
+
+// POST method with node-fetch
+async function tryPost(url, data) {
+    let result = {}
+
+    try {
+        let response = await fetch(url, {
+            method: "post",
+            body: JSON.stringify(data),
+            headers: {"Content-Type": "application/json"}
+        });
+        result = await response.json();
+    } catch (error) {
+        console.log("Something Bad Happened!!")
+        console.log(error);
+    }
+
+    return result;
+}
+
+// Calculate the answer with the rules and the numbers
+function calcAnswer(rules, numbers) {
+    let answer = [];
+    try {
+        for (let n of numbers) {
+            let tempo = [];
+            for (let r of rules) {
+                if (n % r["number"] === 0) {
+                    tempo.push(r["response"]);
+                }
+            }
+            let result = tempo.join("");
+            if (result === "") {
+                result = String(n);
+            }
+            answer.push(result);
+        }
+    } catch (error) {
+        console.log("Something Bad Happened!!")
+        console.log(error);
+    }
+    return {"answer": answer.join(" ")};
+}
+
+// Main solver function
+const startSolver = async (url) => {
+    let cont = true;
+    let answer = {};
+
+    // main loop
+    while (cont) {
+        // send GET request to url
+        console.log("GET the question...") 
+        let res = await tryGet(url);
+
+        if (JSON.stringify(res) === "{}") {
+            console.log("Oops, something is wrong!!");
+            cont = false;
+            break;
+        }
+
+        if (typeof res["message"] !== "undefined") {
+            // GET response contains message, show it
+            console.log("====== GET message begins ======");
+            console.log(res["message"]);
+            console.log("====== GET message ends ======");
+        }
+
+        if (typeof res["nextQuestion"] !== "undefined") {
+            // GET response contains the nextQuestion link, go there
+            url = basePath + res["nextQuestion"]
+            continue;
+        }
+
+        if (typeof res["rules"] !== "undefined" && typeof res["numbers"] !== "undefined") {
+            // it's a real question
+            let rules = res["rules"];
+            let numbers = res["numbers"];
+            
+            // show the rules
+            console.log("====== Rules begins ======");
+            console.log(JSON.stringify(rules))
+            console.log("====== Rules ends ======");
+            
+            // show the numbers
+            console.log("====== Numbers begins ======");
+            console.log(JSON.stringify(numbers))
+            console.log("====== Numbers ends ======");
+
+            // calculate the answer
+            answer = calcAnswer(rules, numbers);
+        } else {
+            // the first question or something, answer "JavaScript!!" anyway
+            answer = {"answer": "JavaScript!!"};
+        }
+
+        // show our decided answer
+        console.log("====== Our answer ======");
+        console.log(JSON.stringify(answer));
+        console.log("====== Answer ends ======");
+
+        // POST the answer back to the url
+        console.log("POST the answer...")
+        res = await tryPost(url, answer);
+
+        if (JSON.stringify(res) === "{}") {
+            console.log("Oops, something is wrong!!");
+            cont = false;
+            break;
+        }
+
+        if (typeof res["message"] !== "undefined") {
+            // POST response contains message, show it
+            console.log("====== POST message begins ======");
+            console.log(res["message"]);
+            console.log("====== POST message ends ======");
+        }
+
+        if (typeof res["nextQuestion"] !== "undefined") {
+            // POST response contains the nextQuestion link, go there
+            url = basePath + res["nextQuestion"]
+            continue;
+        }
+
+        // No next question?
+        console.log("No more questions, test finished!!");
+        cont = false;
+
+    }
+}
+
+// Entry point
+startSolver(basePath + startPath);
diff --git a/fizznodejs/package-lock.json b/fizznodejs/package-lock.json
new file mode 100644
index 0000000..2f14493
--- /dev/null
+++ b/fizznodejs/package-lock.json
@@ -0,0 +1,13 @@
+{
+  "name": "fizznodejs",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "node-fetch": {
+      "version": "2.6.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
+      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
+    }
+  }
+}
diff --git a/fizznodejs/package.json b/fizznodejs/package.json
new file mode 100644
index 0000000..d7ef34c
--- /dev/null
+++ b/fizznodejs/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "fizznodejs",
+  "version": "1.0.0",
+  "description": "fizzbot nodejs solver",
+  "main": "fizzsolver.js",
+  "scripts": {
+    "test": "node fizzsolver.js",
+    "start": "node fizzsolver.js"
+  },
+  "author": "wuya666",
+  "license": "ISC",
+  "dependencies": {
+    "node-fetch": "^2.6.0"
+  }
+}