First Version of App

and
Installed Flet

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml

.idea/dieselbestellrechner.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/venv" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/inspectionProfiles/profiles_settings.xml

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+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.11 (dieselbestellrechner)" project-jdk-type="Python SDK" />
+</project>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/dieselbestellrechner.iml" filepath="$PROJECT_DIR$/.idea/dieselbestellrechner.iml" />
+    </modules>
+  </component>
+</project>

app.py

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+import json
+from tank import Tank
+
+configfile = "config.json"
+
+
+class App:
+
+    def __init__(self):
+        self._tanks = []
+        self._refuel_max = None
+        self._refuel_goal = None
+        self.load_preferences()
+        self.calculate_refuel()
+
+    def load_preferences(self):
+        with open(configfile, 'r') as json_file:
+            json_row = json.load(json_file)
+            for t in json_row['tanks']:
+                tank = Tank(t['name'], t['total'], t['actual'], t['dead'])
+                self._tanks.append(tank)
+            self._refuel_max = json_row["refuel"]["max"]
+            self._refuel_goal = json_row["refuel"]["goal"]
+
+    def calculate_refuel(self):
+        total_empty_space = 0
+        for tank in self._tanks:
+            total_empty_space += tank.refuel_volume
+        print("total empty space: ", total_empty_space)
+        if total_empty_space < self._refuel_max:
+            print("total empty space is lower as refuel")
+            return
+        elif self._refuel_max > total_empty_space - self._refuel_goal:
+            print("maybe is empty space to low")
+            return
+        else:
+            # todo: formel ausdenken
+            portion = self._refuel_max // len(self._tanks)
+            print("portion", portion)
+            portion_ok = True
+            for tank in self._tanks:
+                if tank.refuel_volume < portion:
+                    print("tank ", tank.name, " empty space is to low")
+                    portion_ok = False
+            if portion_ok:
+                print("portion is ok")
+
+    @property
+    def tanks(self):
+        return self._tanks
+
+    def refuel(self, tank: Tank, portion):
+        """ just to test """
+        tank.refuel_volume()

config.json

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+{
+  "tanks": [
+    {
+      "name": "Tank 1",
+      "total": 30000,
+      "actual": 10000,
+      "dead": 2000
+    },
+    {
+      "name": "Tank 2",
+      "total": 35000,
+      "actual": 15000,
+      "dead": 2000
+    }
+  ],
+  "refuel": {
+    "max": 33000,
+    "goal": -6000
+  }
+}

main.py

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+import flet as ft
+from app import App
+
+
+def main(page: ft.Page):
+    name_row = ft.Row(controls=[ft.Text(tank.name) for tank in app.tanks])
+    page.add(name_row)
+
+
+if __name__ == '__main__':
+    app = App()
+    ft.app(target=main)

tank.py

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+
+
+class Tank:
+
+    def __init__(self, name, total, dead, act_in=None):
+        self._name = name
+        self._total = total
+        self._dead = dead
+        self._act_in = act_in
+
+    def _read_act_in(self):
+        raise NotImplementedError
+
+    @property
+    def name(self):
+        return self._name
+
+    @property
+    def total_volume(self):
+        return self._total
+
+    @property
+    def actual_volume(self):
+        return self._act_in
+
+    @property
+    def empty_volume(self):
+        return self._total - self._act_in
+
+    @property
+    def dead_volume(self):
+        return self._dead
+
+    @property
+    def refuel_volume(self):
+        return self._total - self._act_in - self._dead