Initial code commit

leigh-hackspace · Nov 28, 2023 · 7f86756 · 7f86756
1 parent c885b0e
commit 7f86756
Show file tree

Hide file tree

Showing 7 changed files with 555 additions and 0 deletions.
diff --git a/local_spaces/__init__.py b/local_spaces/__init__.py
@@ -0,0 +1 @@
+VERSION = '0.0.1'
diff --git a/local_spaces/app.py b/local_spaces/app.py
@@ -0,0 +1,42 @@
+
+import secrets
+
+from flask import Flask
+from prometheus_flask_exporter import PrometheusMetrics
+
+from local_spaces import VERSION
+from local_spaces.local import local
+
+
+def create_app():
+    app = Flask("local-spaces")
+    app.config.update(
+        {
+            "SECRET_KEY": secrets.token_hex(64),
+            "TESTING": False,
+            "DEBUG": False,
+            "LOCALSPACES_SPACEAPI_ENDPOINT": "https://api.spaceapi.io",
+            "LOCALSPACES_LOCAL_ENDPOINT": "https://api.leighhack.org/space.json",
+            "LOCALSPACES_DISTANCE": 300,
+        }
+    )
+    app.config.from_prefixed_env()
+    register_extensions(app)
+    register_blueprints(app)
+
+    @app.context_processor
+    def inject_app_info():
+        return {"app_version": VERSION}
+
+    return app
+
+
+def register_extensions(app):
+    # Prometheus Metrics
+    metrics = PrometheusMetrics.for_app_factory()
+    metrics.info("local_spaces_info", "Information about Local-Spaces", version=VERSION)
+    metrics.init_app(app)
+
+
+def register_blueprints(app):
+    app.register_blueprint(local)
diff --git a/local_spaces/local.py b/local_spaces/local.py
@@ -0,0 +1,66 @@
+from flask import Blueprint, render_template, current_app
+from math import radians, cos, sin, asin, sqrt
+import requests
+
+local = Blueprint(
+    "local", __name__, template_folder="templates", static_folder="static"
+)
+
+
+def calculate_distance(src: tuple, dest: tuple) -> float:
+    # https://stackoverflow.com/a/4913653
+    # convert decimal degrees to radians
+    lat1, lon1, lat2, lon2 = map(radians, [src[0], src[1], dest[0], dest[1]])
+
+    # haversine formula
+    dlon = lon2 - lon1
+    dlat = lat2 - lat1
+    a = sin(dlat / 2) ** 2 + cos(lat1) * cos(lat2) * sin(dlon / 2) ** 2
+    c = 2 * asin(sqrt(a))
+    r = 6371  # Radius of earth in kilometers. Use 3956 for miles. Determines return value units.
+    return c * r
+
+
+@local.route("/")
+def index():
+    return render_template("index.html")
+
+
+@local.route("/local_spaces.json")
+def spaces():
+    # Get the local hackspace Space JSON
+    resp = requests.get(current_app.config.get("LOCALSPACES_LOCAL_ENDPOINT"))
+
+    if resp.ok:
+        data = resp.json()
+        source = data["location"]["lat"], data["location"]["lon"]
+
+    # Iterate through hackspaces
+    spaces = []
+    resp = requests.get(current_app.config.get("LOCALSPACES_SPACEAPI_ENDPOINT"))
+    if resp.ok:
+        data = resp.json()
+
+        for space in data:
+            # If the SpaceAPI hasn't had a valid response, skip
+            if not space["valid"]:
+                continue
+            # If the hackspace is the source, skip
+            if space["url"] == current_app.config.get("LOCALSPACES_LOCAL_ENDPOINT"):
+                continue
+
+            # Check if the hackspace has a lat/lon
+            if "location" in space["data"] and "lat" in space["data"]["location"]:
+                dest = (
+                    space["data"]["location"]["lat"],
+                    space["data"]["location"]["lon"],
+                )
+
+                # If its within the radius, add it to the list
+                distance = calculate_distance(source, dest)
+                if distance <= float(current_app.config.get("LOCALSPACES_DISTANCE")):
+                    print("Added {0}".format(space["data"]["space"]))
+                    space['distance'] = distance
+                    spaces.append(space)
+
+    return spaces
diff --git a/local_spaces/static/style.css b/local_spaces/static/style.css
diff --git a/local_spaces/templates/index.html b/local_spaces/templates/index.html
@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>Local Spaces</title>
+    <link rel="stylesheet" href="style.css">
+    <script src="https://code.jquery.com/jquery-3.7.1.min.js" crossorigin="anonymous"></script>
+    <link rel=stylesheet
+        href=https://web-test.leighhack.org/css/leighhack.min.4d84caa1fa6de0b3253d5ffdde20e14609fa2683b065b0abca10fe2a24719839.css
+        integrity="sha256-TYTKofpt4LMlPV/93iDhRgn6JoOwZbCryhD+KiRxmDk=" crossorigin=anonymous>
+    <style>
+
+        img#space-logo {
+            max-height: 200px;
+        }
+        div.space-box {
+            min-height: 300px;
+        }
+    </style>
+</head>
+
+<body>
+    <template id="space-block">
+        <div class="column is-one-quarter">
+            <div class="box space-box">
+                <h4 id="space-name"></h3>
+                <img id="space-logo" class="is-centered" src="">
+                <p>Distance: <span id="space-distance"></span>km</p>
+            </div>
+        </div>
+    </template>
+    <section class="section">
+        <h1>Other Local Hackspaces</h1>
+        <div class="container content">
+            <div class="columns is-centered is-multiline" id="spaces"></div>
+        </div>
+    </section>
+    <script>
+        $(document).ready(function () {
+            $.getJSON('/local_spaces.json', function (data) {
+                const spaces = Array.from(data).sort((a, b) => a['data']['distance'] - b['data']['distance']);
+                spaces.forEach(function (val, indx) {
+                    var obj = $($("template#space-block").html());
+                    obj.find('#space-name').html(val['data']['space']);
+                    obj.find('#space-distance').html(val['distance']);
+                    obj.find('#space-logo').attr('src', val['data']['logo']);
+                    $('div#spaces').append(obj);
+                });
+            });
+        });
+    </script>
+</body>
+
+</html>