WIP book

calendar_booking_api.py

@@ -0,0 +1,164 @@
+import bisect
+from datetime import datetime, timedelta
+from flask import Flask, jsonify, make_response, redirect, request
+from google.auth.transport.requests import Request
+from google.oauth2.credentials import Credentials
+from googleapiclient.discovery import build
+import pytz
+
+
+# Monday to Friday
+WEEK_DAYS = {1, 2, 3, 4, 5}
+
+# 9 to 5
+FROM = 9
+TO = 17
+
+TIMEZONE_NAME = 'America/New_York'
+TIMEZONE = pytz.timezone(TIMEZONE_NAME)
+
+AVAILABILITY_LIFETIME = timedelta(minutes=2)
+
+SCOPES = ['https://www.googleapis.com/auth/calendar']
+
+UTC = pytz.timezone('UTC')
+
+creds = Credentials.from_authorized_user_file('creds.json', SCOPES)
+
+
+def read_datetime(dct):
+    dt = datetime.fromisoformat(dct['dateTime']).replace(tzinfo=None)
+    dt = pytz.timezone(dct['timeZone']).localize(dt)
+    return dt
+
+
+def asiso(dt):
+    return dt.isoformat()[:19]
+
+
+def asutciso(dt):
+    return asiso(dt.astimezone(UTC)) + 'Z'
+
+
+def aslocal(dt):
+    return dt.astimezone(TIMEZONE).strftime('%Y-%m-%d %H:%M:%S')
+
+
+def get_availability():
+    if not creds.valid:
+        creds.refresh(Request())
+    service = build('calendar', 'v3', credentials=creds)
+
+    # Get events for the next 2 weeks
+    now = datetime.utcnow()
+    start = datetime(now.year, now.month, now.day)
+    end = start + timedelta(days=14)
+    events_result = service.events().list(
+        calendarId='primary',
+        timeMin=asutciso(now),
+        timeMax=asutciso(end),
+        maxResults=200,
+        singleEvents=True,
+        orderBy='startTime',
+    ).execute()
+
+    # Build a list of possible time slots for the next 2 weeks
+    availability = []
+    for day in range(14):
+        day = start + timedelta(days=day)
+        if day.weekday() not in WEEK_DAYS:
+            continue
+        for hour in range(FROM, TO):
+            for minute in (0, 30):
+                availability.append(TIMEZONE.localize(
+                    day.replace(hour=hour, minute=minute),
+                ))
+
+    for event in events_result.get('items', []):
+        event_start = read_datetime(event['start'])
+        event_end = read_datetime(event['end'])
+
+        # Find the first slot that starts less than 30min before this event
+        first_idx = bisect.bisect_right(
+            availability,
+            event_start - timedelta(minutes=30),
+        )
+
+        # Find the first slot that starts after this event ends
+        last_idx = bisect.bisect_left(
+            availability,
+            event_end,
+        )
+
+        # Remove the slots from the availability
+        del availability[first_idx:last_idx]
+
+    return availability
+
+
+availability = get_availability()
+availability_as_of_date = datetime.utcnow()
+
+
+app = Flask('calendar_booking_api')
+
+
+@app.route('/availability')
+def api_availability():
+    global availability, availability_as_of_date
+    if (
+        availability_as_of_date is None
+        or availability_as_of_date + AVAILABILITY_LIFETIME < datetime.utcnow()
+    ):
+        availability = get_availability()
+        availability_as_of_date = datetime.utcnow()
+
+    return jsonify({'availability': [asutciso(time) for time in availability]})
+
+
+@app.route('/book', methods=['POST', 'OPTIONS'])
+def api_book():
+    # Allow cross-origin
+    if request.method == 'OPTIONS':
+        response = make_response()
+        response.headers.add(
+            'Access-Control-Allow-Origin',
+            'https://vicky.rampin.org',
+        )
+        response.headers.add(
+            'Access-Control-Allow-Headers',
+            'Content-Type',
+        )
+        response.headers.add(
+            'Access-Control-Allow-Methods',
+            'POST',
+        )
+        return response
+
+    if not creds.valid:
+        creds.refresh(Request())
+    service = build('calendar', 'v3', credentials=creds)
+
+    full_name = request.form['name']
+    email = request.form['email']
+    topic = request.form['topic']
+    date = request.form['date']
+
+    end = start + timedelta(minutes=30)
+
+    service.events().insert(
+        calendarId='primary',
+        body=dict(
+            start={'dateTime': asiso(start), 'timeZone': TIMEZONE_NAME},
+            end={'dateTime': asiso(end), 'timeZone': TIMEZONE_NAME},
+            summary="Meeting with Vicky",
+            description="Meeting scheduled from the web",
+        ),
+    )
+
+    response = redirect('https://vicky.rampin.org/book-successful', 303)
+    response.headers.add(
+        'Access-Control-Allow-Origin',
+        'https://vicky.rampin.org',
+    )
+    return response

form.html

@@ -2,40 +2,40 @@
 <head>
     <title>Meet with Vicky Rampin</title>
     <meta content="">
-    <link rel="stylesheet" href="bootstrap.css">
+    <link rel="stylesheet" href=".bootstrap/bootstrap.min.css">
 </head>
 <body>
 
-    <div class="container px-5 my-5">
+<div class="container px-5 my-5">
     <form id="contactForm" data-sb-form-api-token="API_TOKEN">
         <div class="mb-3">
-            <label class="form-label" for="fullName">Full name</label>
+            <label class="form-label" for="name">Full name</label>
-            <input class="form-control" id="fullName" type="text" placeholder="Full name" data-sb-validations="required" />
+            <input class="form-control" id="name" name="name" type="text" placeholder="Full name" data-sb-validations="required" />
             <div class="invalid-feedback" data-sb-feedback="fullName:required">Full name is required.</div>
         </div>
         <div class="mb-3">
-            <label class="form-label" for="emailAddress">Email address</label>
+            <label class="form-label" for="email">Email address</label>
-            <input class="form-control" id="emailAddress" type="email" placeholder="Email address" data-sb-validations="required,email" />
+            <input class="form-control" id="email" name="email" type="email" placeholder="Email address" data-sb-validations="required,email" />
             <div class="invalid-feedback" data-sb-feedback="emailAddress:required">Email address is required.</div>
             <div class="invalid-feedback" data-sb-feedback="emailAddress:email">Email address Email is not valid.</div>
         </div>
         <div class="mb-3">
-            <label class="form-label" for="whatWouldYouLikeToDiscuss">What would you like to discuss?</label>
+            <label class="form-label" for="topic">What would you like to discuss?</label>
-            <textarea class="form-control" id="whatWouldYouLikeToDiscuss" type="text" placeholder="What would you like to discuss?" style="height: 10rem;" data-sb-validations="required"></textarea>
+            <textarea class="form-control" id="topic" name="topic" placeholder="What would you like to discuss?" style="height: 10rem;" data-sb-validations="required"></textarea>
             <div class="invalid-feedback" data-sb-feedback="whatWouldYouLikeToDiscuss:required">What would you like to discuss? is required.</div>
         </div>
         <div class="mb-3">
             <label class="form-label d-block">Which day and time works best for us to meet on Zoom?</label>
             <div class="form-check form-check-inline">
-                <input class="form-check-input" id="optionA" type="radio" name="whichDayAndTimeWorksBestForUsToMeetOnZoom" data-sb-validations="" />
+                <input class="form-check-input" id="optionA" type="radio" name="date" data-sb-validations="" />
                 <label class="form-check-label" for="optionA">option A</label>
             </div>
             <div class="form-check form-check-inline">
-                <input class="form-check-input" id="optionB" type="radio" name="whichDayAndTimeWorksBestForUsToMeetOnZoom" data-sb-validations="" />
+                <input class="form-check-input" id="optionB" type="radio" name="date" data-sb-validations="" />
                 <label class="form-check-label" for="optionB">option B</label>
             </div>
             <div class="form-check form-check-inline">
-                <input class="form-check-input" id="optionC" type="radio" name="whichDayAndTimeWorksBestForUsToMeetOnZoom" data-sb-validations="" />
+                <input class="form-check-input" id="optionC" type="radio" name="date" data-sb-validations="" />
                 <label class="form-check-label" for="optionC">option C</label>
             </div>
         </div>
@@ -54,7 +54,6 @@
         </div>
     </form>
 </div>
-    <script src="https://cdn.startbootstrap.com/sb-forms-latest.js"></script>
 
 
 </body>

poetry.lock

@@ -66,11 +66,22 @@ python-versions = ">=3.5.0"
 [package.extras]
 unicode_backport = ["unicodedata2"]
 
+[[package]]
+name = "click"
+version = "8.1.3"
+description = "Composable command line interface toolkit"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+colorama = {version = "*", markers = "platform_system == \"Windows\""}
+
 [[package]]
 name = "colorama"
 version = "0.4.4"
 description = "Cross-platform colored terminal text."
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
@@ -106,6 +117,25 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "flask"
+version = "2.1.2"
+description = "A simple framework for building complex web applications."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+click = ">=8.0"
+importlib-metadata = {version = ">=3.6.0", markers = "python_version < \"3.10\""}
+itsdangerous = ">=2.0"
+Jinja2 = ">=3.0"
+Werkzeug = ">=2.0"
+
+[package.extras]
+async = ["asgiref (>=3.2)"]
+dotenv = ["python-dotenv"]
+
 [[package]]
 name = "google-api-core"
 version = "2.7.3"
@@ -220,6 +250,22 @@ category = "main"
 optional = false
 python-versions = ">=3.5"
 
+[[package]]
+name = "importlib-metadata"
+version = "4.11.3"
+description = "Read metadata from Python packages"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+zipp = ">=0.5"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=9)", "rst.linker (>=1.9)"]
+perf = ["ipython"]
+testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "packaging", "pyfakefs", "flufl.flake8", "pytest-perf (>=0.9.2)", "pytest-black (>=0.3.7)", "pytest-mypy (>=0.9.1)", "importlib-resources (>=1.3)"]
+
 [[package]]
 name = "ipykernel"
 version = "6.13.0"
@@ -278,6 +324,14 @@ qtconsole = ["qtconsole"]
 test = ["pytest (<7.1)", "pytest-asyncio", "testpath"]
 test_extra = ["pytest (<7.1)", "pytest-asyncio", "testpath", "curio", "matplotlib (!=3.2.0)", "nbformat", "numpy (>=1.19)", "pandas", "trio"]
 
+[[package]]
+name = "itsdangerous"
+version = "2.1.2"
+description = "Safely pass data to untrusted environments and back."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
 [[package]]
 name = "jedi"
 version = "0.18.1"
@@ -293,6 +347,20 @@ parso = ">=0.8.0,<0.9.0"
 qa = ["flake8 (==3.8.3)", "mypy (==0.782)"]
 testing = ["Django (<3.1)", "colorama", "docopt", "pytest (<7.0.0)"]
 
+[[package]]
+name = "jinja2"
+version = "3.1.2"
+description = "A very fast and expressive template engine."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+MarkupSafe = ">=2.0"
+
+[package.extras]
+i18n = ["Babel (>=2.7)"]
+
 [[package]]
 name = "jupyter-client"
 version = "7.3.1"
@@ -329,6 +397,14 @@ traitlets = "*"
 [package.extras]
 test = ["ipykernel", "pre-commit", "pytest", "pytest-cov", "pytest-timeout"]
 
+[[package]]
+name = "markupsafe"
+version = "2.1.1"
+description = "Safely add untrusted strings to HTML/XML markup."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
 [[package]]
 name = "matplotlib-inline"
 version = "0.1.3"
@@ -517,6 +593,14 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,>=2.7"
 [package.dependencies]
 six = ">=1.5"
 
+[[package]]
+name = "pytz"
+version = "2022.1"
+description = "World timezone definitions, modern and historical"
+category = "main"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "pywin32"
 version = "304"
@@ -653,10 +737,33 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "werkzeug"
+version = "2.1.2"
+description = "The comprehensive WSGI web application library."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+watchdog = ["watchdog"]
+
+[[package]]
+name = "zipp"
+version = "3.8.0"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=9)", "rst.linker (>=1.9)"]
+testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-cov", "pytest-enabler (>=1.0.1)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy (>=0.9.1)"]
+
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "83be0a029b324415badfd26479b415852946c927f43f7f677308f7135f7c8596"
+content-hash = "9f4cc03d98c0330f2704b5d44ef2354b0c9c91532b16ffc0aed0bd99ee7b4cc2"
 
 [metadata.files]
 appnope = [
@@ -735,6 +842,10 @@ charset-normalizer = [
     {file = "charset-normalizer-2.0.12.tar.gz", hash = "sha256:2857e29ff0d34db842cd7ca3230549d1a697f96ee6d3fb071cfa6c7393832597"},
     {file = "charset_normalizer-2.0.12-py3-none-any.whl", hash = "sha256:6881edbebdb17b39b4eaaa821b438bf6eddffb4468cf344f09f89def34a8b1df"},
 ]
+click = [
+    {file = "click-8.1.3-py3-none-any.whl", hash = "sha256:bb4d8133cb15a609f44e8213d9b391b0809795062913b383c62be0ee95b1db48"},
+    {file = "click-8.1.3.tar.gz", hash = "sha256:7682dc8afb30297001674575ea00d1814d808d6a36af415a82bd481d37ba7b8e"},
+]
 colorama = [
     {file = "colorama-0.4.4-py2.py3-none-any.whl", hash = "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"},
     {file = "colorama-0.4.4.tar.gz", hash = "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b"},
@@ -771,6 +882,10 @@ executing = [
     {file = "executing-0.8.3-py2.py3-none-any.whl", hash = "sha256:d1eef132db1b83649a3905ca6dd8897f71ac6f8cac79a7e58a1a09cf137546c9"},
     {file = "executing-0.8.3.tar.gz", hash = "sha256:c6554e21c6b060590a6d3be4b82fb78f8f0194d809de5ea7df1c093763311501"},
 ]
+flask = [
+    {file = "Flask-2.1.2-py3-none-any.whl", hash = "sha256:fad5b446feb0d6db6aec0c3184d16a8c1f6c3e464b511649c8918a9be100b4fe"},
+    {file = "Flask-2.1.2.tar.gz", hash = "sha256:315ded2ddf8a6281567edb27393010fe3406188bafbfe65a3339d5787d89e477"},
+]
 google-api-core = [
     {file = "google-api-core-2.7.3.tar.gz", hash = "sha256:17957f0704cbe95bd2ce25019efd2046423978594d181d4263e5dcffd2dbbc79"},
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@@ -803,6 +918,10 @@ idna = [
     {file = "idna-3.3-py3-none-any.whl", hash = "sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff"},
     {file = "idna-3.3.tar.gz", hash = "sha256:9d643ff0a55b762d5cdb124b8eaa99c66322e2157b69160bc32796e824360e6d"},
 ]
+importlib-metadata = [
+    {file = "importlib_metadata-4.11.3-py3-none-any.whl", hash = "sha256:1208431ca90a8cca1a6b8af391bb53c1a2db74e5d1cef6ddced95d4b2062edc6"},
+    {file = "importlib_metadata-4.11.3.tar.gz", hash = "sha256:ea4c597ebf37142f827b8f39299579e31685c31d3a438b59f469406afd0f2539"},
+]
 ipykernel = [
     {file = "ipykernel-6.13.0-py3-none-any.whl", hash = "sha256:2b0987af43c0d4b62cecb13c592755f599f96f29aafe36c01731aaa96df30d39"},
     {file = "ipykernel-6.13.0.tar.gz", hash = "sha256:0e28273e290858393e86e152b104e5506a79c13d25b951ac6eca220051b4be60"},
@@ -811,10 +930,18 @@ ipython = [
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     {file = "ipython-8.3.0.tar.gz", hash = "sha256:807ae3cf43b84693c9272f70368440a9a7eaa2e7e6882dad943c32fbf7e51402"},
 ]
+itsdangerous = [
+    {file = "itsdangerous-2.1.2-py3-none-any.whl", hash = "sha256:2c2349112351b88699d8d4b6b075022c0808887cb7ad10069318a8b0bc88db44"},
+    {file = "itsdangerous-2.1.2.tar.gz", hash = "sha256:5dbbc68b317e5e42f327f9021763545dc3fc3bfe22e6deb96aaf1fc38874156a"},
+]
 jedi = [
     {file = "jedi-0.18.1-py2.py3-none-any.whl", hash = "sha256:637c9635fcf47945ceb91cd7f320234a7be540ded6f3e99a50cb6febdfd1ba8d"},
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 ]
+jinja2 = [
+    {file = "Jinja2-3.1.2-py3-none-any.whl", hash = "sha256:6088930bfe239f0e6710546ab9c19c9ef35e29792895fed6e6e31a023a182a61"},
+    {file = "Jinja2-3.1.2.tar.gz", hash = "sha256:31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852"},
+]
 jupyter-client = [
     {file = "jupyter_client-7.3.1-py3-none-any.whl", hash = "sha256:404abe552540aff3527e66e16beb114b6b4ff58479d51a301f4eb9701e4f52ef"},
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@@ -823,6 +950,48 @@ jupyter-core = [
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 ]
+markupsafe = [
+    {file = "MarkupSafe-2.1.1-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:86b1f75c4e7c2ac2ccdaec2b9022845dbb81880ca318bb7a0a01fbf7813e3812"},
+    {file = "MarkupSafe-2.1.1-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:f121a1420d4e173a5d96e47e9a0c0dcff965afdf1626d28de1460815f7c4ee7a"},
+    {file = "MarkupSafe-2.1.1-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a49907dd8420c5685cfa064a1335b6754b74541bbb3706c259c02ed65b644b3e"},
+    {file = "MarkupSafe-2.1.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:10c1bfff05d95783da83491be968e8fe789263689c02724e0c691933c52994f5"},
+    {file = "MarkupSafe-2.1.1-cp310-cp310-manylinux_2_5_i686.manylinux1_i686.manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:b7bd98b796e2b6553da7225aeb61f447f80a1ca64f41d83612e6139ca5213aa4"},
+    {file = "MarkupSafe-2.1.1-cp310-cp310-musllinux_1_1_aarch64.whl", hash = "sha256:b09bf97215625a311f669476f44b8b318b075847b49316d3e28c08e41a7a573f"},
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 matplotlib-inline = [
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@@ -973,6 +1142,10 @@ python-dateutil = [
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 ]
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+    {file = "pytz-2022.1.tar.gz", hash = "sha256:1e760e2fe6a8163bc0b3d9a19c4f84342afa0a2affebfaa84b01b978a02ecaa7"},
+]
 pywin32 = [
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@@ -1117,3 +1290,11 @@ wcwidth = [
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 ]
+werkzeug = [
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+    {file = "Werkzeug-2.1.2.tar.gz", hash = "sha256:1ce08e8093ed67d638d63879fd1ba3735817f7a80de3674d293f5984f25fb6e6"},
+]
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+    {file = "zipp-3.8.0.tar.gz", hash = "sha256:56bf8aadb83c24db6c4b577e13de374ccfb67da2078beba1d037c17980bf43ad"},
+]

pyproject.toml

@@ -9,6 +9,8 @@ python = "^3.8"
 google-api-python-client = ">=2,<3"
 google-auth-httplib2 = ">=0.1,<0.2"
 google-auth-oauthlib = ">=0.5,<0.6"
+Flask = ">=2,<3"
+pytz = "*"
 
 [tool.poetry.dev-dependencies]
 ipykernel = ">=6,<7"