Add statistics page & statistics api

app.py

@@ -5,6 +5,8 @@ import logging
 from apps.admin import admin as blueprint_admin
 from apps.auth  import auth  as blueprint_auth 
 
+from apps.group_stat_api import group_stat_api as blueprint_stat_api
+
 from config import secret_key
 
 app = Flask(__name__)
@@ -12,6 +14,7 @@ app.secret_key = secret_key
 
 app.register_blueprint(blueprint_auth)
 app.register_blueprint(blueprint_admin)
+app.register_blueprint(blueprint_stat_api)
 
 if __name__ == '__main__':
     from database import build_database

apps/admin.py

@@ -11,6 +11,10 @@ def admin_page():
         return render_template("index.html", username=session["username"])
     return redirect(url_for("auth.login_page"))
 
+@admin.route("/stat")
+def chart():
+    return render_template("statistics.html")
+
 @admin.route("/members")
 def table_of_members():
     return render_template("members.html", members=Member.select())

apps/auth.py

@@ -20,7 +20,7 @@ def login_page():
         session["username"] = username
         return redirect(url_for("admin.admin_page"))
    
-    flash("password/username not valid")
+    flash("wrong nickname/password!")
     return redirect(url_for("auth.login_page"))
 
 @auth.route("/logout")

apps/group_stat_api.py

@@ -0,0 +1,12 @@
+from flask import Blueprint, jsonify
+
+group_stat_api = Blueprint('group_stat_api', __name__)
+
+
+@group_stat_api.route("/top3_users",methods=["POST"])
+def top_users():
+    # TODO: database
+    return jsonify({
+        "members": ["Mr.D", "𝙲𝚊𝚝𝚒𝚘𝚗", "Тёма","Others"],
+        "counts":[4026,3024,2024,4096]
+    })

database.py

@@ -1,7 +1,8 @@
-from peewee import Model,CharField
+from peewee import Model, CharField, BigIntegerField, DateField, TimestampField
-
 from playhouse.db_url import connect
 
+from datetime import date, datetime
+
 from config import db_url 
 db = connect(db_url)
 
@@ -13,16 +14,30 @@ class WebUser(Model):
         db_table = "webusers"
         database = db
 
-    @staticmethod
+class Member(Model):
-    def userExists(username) -> bool:
+    user_id    = BigIntegerField()
-        """Check if the username exists in a database."""
+    first_name = CharField()
-        query = WebUser.select().where(WebUser.username == username)
+    username  = CharField(null=True)
     
-        if (query):
+    role = CharField(default="member")
-            if (query.exists()):
-                return True
 
-        return False
+    warns = BigIntegerField(default=0)
+    
+    joined  = DateField(default=date.today())
+    
+    
+    class Meta:
+        db_table = "members"
+        database = db
+
+class Message(Model):
+    user_id   = BigIntegerField()
+    timestamp = TimestampField(default=datetime.now()) 
+    
+    class Meta:
+        db_table = "messages"
+        database = db
 
 def build_database():
+    # db.create_tables([Message])
     db.create_tables([WebUser])

static/css/statistics.css

@@ -0,0 +1,4 @@
+#top-users {
+    width: 500px;
+    height: 500px;
+}

static/js/top-users.js

@@ -0,0 +1,56 @@
+const options = {
+    method: 'POST',
+    headers: {'Content-Type': 'application/json'}
+}
+
+fetch("/top3_users", options)
+    .then(response => {
+        if (!response.ok) {
+            throw new Error(`HTTP error: ${response.status}`);
+        }   
+        
+        return response.json();
+    }).then((data) => {
+        const ctx = document.getElementById('top-users');
+
+        new Chart(ctx, {
+            type: 'pie',
+            data: {
+                labels: data["members"],
+                datasets: [{
+                    data: data["counts"]
+                }]
+            },
+
+            plugins: [ChartDataLabels], 
+            options: {
+                maintainAspectRatio: false,
+                plugins :{
+                    legend: false,
+                    
+                    datalabels: {
+                        color: '#f4f6fc',
+                        formatter: function(value, context) {
+                            return context.chart.data.labels[context.dataIndex];
+                        }
+                    },
+
+                    tooltip: {
+                        callbacks: {
+                            label: (context) => {
+                                let sum = 0;
+                                let value = context.parsed;
+                                let dataArray = context.dataset.data;
+                                dataArray.map(data => {
+                                    sum += data;
+                                });
+                                let percentage = Math.round(value*100 / sum);
+
+                                return `${percentage}%`
+                            }
+                        }
+                    }
+                }
+            },
+        });
+})

templates/statistics.html

@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        <title>Statistics</title>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
+        
+        <link rel="stylesheet" href="../static/css/statistics.css">
+
+    </head>
+    <body>
+        <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
+        <script src="https://cdnjs.cloudflare.com/ajax/libs/chartjs-plugin-datalabels/2.2.0/chartjs-plugin-datalabels.min.js" integrity="sha512-JPcRR8yFa8mmCsfrw4TNte1ZvF1e3+1SdGMslZvmrzDYxS69J7J49vkFL8u6u8PlPJK+H3voElBtUCzaXj+6ig==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+
+        <div>
+            <canvas id="top-users"></canvas>
+        </div>
+
+        <script src="../static/js/top-users.js"></script>
+
+    </body>
+</html>