html+js: rename stuff to prepare for weather

[chrisu/seepark.git] / web / seepark_web.py

diff --git a/web/seepark_web.py b/web/seepark_web.py
index fc28fdead7f895951f9fd03ccf72ddbf573d83b4..a6d39302553bcd17f052b6cbde606473a81b9fd0 100644 (file)
--- a/web/seepark_web.py
+++ b/web/seepark_web.py
@@ -5,7 +5,7 @@ import configparser
 import os
 import sys
 from collections import defaultdict
 import os
 import sys
 from collections import defaultdict

-from flask import Flask, render_template, jsonify, request
+from flask import Flask, render_template, jsonify, request, abort, Response

 import flask.json
 from flask_sqlalchemy import SQLAlchemy, inspect
 
 import flask.json
 from flask_sqlalchemy import SQLAlchemy, inspect
 


@@ -61,60 +61,128 @@ class Sensors(db.Model):
     __tablename__ = 'sensors'
 
 
     __tablename__ = 'sensors'
 
 

-def select_sensordata(initial_where):
-    query = Sensors.query.filter(initial_where)
-    begin = request.args.get('begin', None, parse_datetime)
-    end = request.args.get('end', None, parse_datetime)
+class OpenWeatherMap(db.Model):
+    __tablename__ = 'openweathermap'
+
+
+def select_sensordata(sensor_id, sensor_type, begin, end, mode):
+    query = Sensors.query
+    if sensor_id is not None:
+        query = query.filter(Sensors.sensor_id == sensor_id)
+    if sensor_type is not None:
+        query = query.filter(Sensors.value_type == sensor_type)

     if begin is not None:
         query = query.filter(Sensors.timestamp >= begin)
     if end is not None:
         query = query.filter(Sensors.timestamp <= end)
     if begin is not None:
         query = query.filter(Sensors.timestamp >= begin)
     if end is not None:
         query = query.filter(Sensors.timestamp <= end)

-    result = query.all()
+    if mode == 'consolidated' and begin is None and end is None:
+        # copied from munin/master/_bin/munin-cgi-graph.in
+        # interval in seconds for data points
+        resolutions = dict(
+            day   =   300,
+            week  =  1800,
+            month =  7200,
+            year  = 86400,
+        )
+        duration = (end - begin).total_seconds()
+        day = 60 * 60 * 24
+        if duration < day:
+            resolution = resolutions['day']
+        elif duration < 7 * day:
+            resolution = resolutions['week']
+        elif duration < 31 * day:
+            resolution = resolutions['month']
+        else:
+            resolution = resolutions['year']
+        # TODO: filter out samples from 'result'
+        # something like 
+        # select to_seconds(datetime) DIV (60*60*24) as interval_id, min(datetime), max(datetime), min(temp), avg(temp), max(temp), count(temp) from openweathermap group by interval_id order by interval_id;
+    return query.all()

 
 

-    mode = request.args.get('mode', 'full')
-    if mode == 'consolidated':
-        if begin is None or end is None:
-            pass
+
+def select_openweatherdata(cityid, begin, end, mode):
+    query = OpenWeatherMap.query.filter(OpenWeatherMap.cityid == cityid)
+    if begin is not None:
+        query = query.filter(OpenWeatherMap.datetime >= begin)
+    if end is not None:
+        query = query.filter(OpenWeatherMap.datetime <= end)
+    if mode == 'consolidated' and begin is None and end is None:
+        # copied from munin/master/_bin/munin-cgi-graph.in
+        # interval in seconds for data points
+        resolutions = dict(
+            day   =   300,
+            week  =  1800,
+            month =  7200,
+            year  = 86400,
+        )
+        duration = (end - begin).total_seconds()
+        day = 60 * 60 * 24
+        if duration < day:
+            resolution = resolutions['day']
+        elif duration < 7 * day:
+            resolution = resolutions['week']
+        elif duration < 31 * day:
+            resolution = resolutions['month']

         else:
         else:

-            # copied from munin/master/_bin/munin-cgi-graph.in
-            resolutions = dict(
-                day   =   300,
-                week  =  1800,
-                month =  7200,
-                year  = 86400,
-            )
-            duration = (end - begin).total_seconds()
-            day = 60 * 60 * 24
-            if duration < day:
-                resolution = resolutions['day']
-            elif duration < 7 * day:
-                resolution = resolutions['week']
-            elif duration < 31 * day:
-                resolution = resolutions['month']
-            else:
-                resolution = resolutions['year']
-            # TODO: filter out samples from 'result'
-            # like loop over results and skip if timestamp(n+1)-timestamp(n)<resolution
+            resolution = resolutions['year']
+        # TODO: filter out samples from 'result'
+        # something like 
+        # select to_seconds(datetime) DIV (60*60*24) as interval_id, min(datetime), max(datetime), min(temp), avg(temp), max(temp), count(temp) from openweathermap group by interval_id order by interval_id;
+    return query.all()
+
+
+def convert_to_c3(result):
+    c3result = defaultdict(list)
+    for row in result:
+        c3result[row.sensor_id].append(row.value)
+        dt = row.timestamp.strftime('%Y-%m-%d %H:%M:%S')
+        c3result[row.sensor_id + '_x'].append(dt)
+    return c3result
+
+
+def request_arg(key, type, default=None):
+    """Returns the key from the request if available, otherwise the default value.
+    In case type is provided and the key is present, the value is converted by calling type.
+    In other words: Reimplement request.args.get but don't return default value if
+    type raises a ValueError."""
+    if key in request.args:
+        try:
+            return type(request.args[key])
+        except ValueError as e:
+            abort(Response(str(e), 400))
+    else:
+        return default
+

 
 

+def sensordata(sensor_id=None, sensor_type=None):
+    begin = request_arg('begin', parse_datetime)
+    end = request_arg('end', parse_datetime)
+    mode = request.args.get('mode', 'full')

     format = request.args.get('format', 'default')
     format = request.args.get('format', 'default')

+
+    result = select_sensordata(sensor_id, sensor_type, begin, end, mode)
+

     if format == 'c3':
     if format == 'c3':

-        c3result = defaultdict(list)
-        for row in result:
-            c3result[row.sensor_id].append(row.value)
-            dt = row.timestamp.strftime('%Y-%m-%d %H:%M:%S')
-            c3result[row.sensor_id + '_x'].append(dt)
-        return c3result
-    else:
-        return result
+        return convert_to_c3(result)
+    return result

 
 
 
 

-def currentairtemperature(apikey, cityid):
-    """Retruns the tuple temperature, datetime (as float, datetime) in case of success, otherwise None, None."""
-    try:
-        weatherdata = openweathermap_json(apikey, cityid)
-        return weatherdata['main']['temp'], datetime.datetime.fromtimestamp(weatherdata['dt'])
-    except OpenWeatherMapError:
-        return None, None
+def openweathermapdata(cityid):
+    begin = request_arg('begin', parse_datetime)
+    end = request_arg('end', parse_datetime)
+    mode = request.args.get('mode', 'full')
+    format = request.args.get('format', 'default')
+
+    result = select_openweatherdata(cityid, begin, end, mode)
+
+    if format == 'c3':
+        return convert_to_c3(result)
+    return result
+
+
+def currentairtemperature(cityid):
+    result = OpenWeatherMap.query.filter_by(cityid=cityid).order_by(OpenWeatherMap.datetime.desc()).first()
+    return result.temp, result.datetime

 
 
 def currentwatertemperature(sensorid):
 
 
 def currentwatertemperature(sensorid):


@@ -139,7 +207,7 @@ def sensorid(version, sensor_id):
     mode=<full|consolidated>, optional. return all rows (default) or with lower resolution (for charts)
     format=<default|c3>, optional. return result as returned by sqlalchemy (default) or formatted for c3.js
     """
     mode=<full|consolidated>, optional. return all rows (default) or with lower resolution (for charts)
     format=<default|c3>, optional. return result as returned by sqlalchemy (default) or formatted for c3.js
     """

-    result = select_sensordata(Sensors.sensor_id == sensor_id)
+    result = sensordata(sensor_id=sensor_id)

     return jsonify(result)
 
 
     return jsonify(result)
 
 


@@ -153,7 +221,21 @@ def sensortype(version, sensor_type):
     mode=<full|consolidated>, optional. return all rows (default) or with lower resolution (for charts)
     format=<default|c3>, optional. return result as returned by sqlalchemy (default) or formatted for c3.js
     """
     mode=<full|consolidated>, optional. return all rows (default) or with lower resolution (for charts)
     format=<default|c3>, optional. return result as returned by sqlalchemy (default) or formatted for c3.js
     """

-    result = select_sensordata(Sensors.value_type == sensor_type)
+    result = sensordata(sensor_type=sensor_type)
+    return jsonify(result)
+
+
+@app.route('/api/<version>/openweathermap/cities')
+def openweathermap_cities(version):
+    """List all city IDs found in the database"""
+    result = db.session.query(OpenWeatherMap.cityid).distinct().all()
+    return jsonify(result)
+
+
+@app.route('/api/<version>/openweathermap/city/<cityid>')
+def openweathermap_city(version, cityid):
+    """List all data found for a city"""
+    result = openweathermapdata(cityid=cityid)

     return jsonify(result)
 
 
     return jsonify(result)
 
 


@@ -189,7 +271,7 @@ def data(timespan):
 
 @app.route("/")
 def index():
 
 @app.route("/")
 def index():

-    airvalue, airtime     = currentairtemperature(apikey, cityid)
+    airvalue, airtime     = currentairtemperature(cityid)

     watervalue, watertime = currentwatertemperature(mainsensor)
 
     return render_template(
     watervalue, watertime = currentwatertemperature(mainsensor)
 
     return render_template(