WIP

warehouse.py

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+""" Warehouse API """
+
+import os
+from dataclasses import dataclass
+
+#
+# Dataclasses
+#
+@dataclass
+class WarehouseLocation:
+    """ Location inside warehouse """
+    # human readable name of location within warehouse
+    name: str
+    # description on how to find the location
+    how_to_find: str = 'Somewhere inside the warehouse'
+    # remarks
+    remarks: str = ''
+
+@dataclass
+class WarehouseItem:
+    """ Item stored within warehouse """
+    # human readable name of item
+    name: str
+    # human readable name of measurement unit
+    unit: str = 'units'
+    # count of item in units
+    count: int = 1
+    # remarks
+    remarks: str = ''
+    # location ID where the item is stored
+    location_id: int = 0
+
+#
+# Private
+#
+_warehouse_name = None
+_warehouse_path = None
+_locations = {}
+_entries = {}
+
+async def _read_file(path: str) -> str:
+    """ Read file content and strip it.
+        Empty string on error.
+    """
+    try:
+        with open(path, 'r') as f:
+            return f.read().strip()
+    except:
+        return ''
+
+async def _write_file(path: str, content: str) -> bool:
+    """ Write file content. """
+    try:
+        with open(path, 'w') as f:
+            f.write(content)
+        return True
+    except:
+        return False
+
+async def _fsck_warehouse(path: str) -> bool:
+    """ Check warehouse for errors and fix them if possible.
+        Returns True if warehouse is usable.
+    """
+    if not os.path.isdir(path):
+        return False
+
+async def _create_warehouse(path: str) -> bool:
+    """ Create warehouse.
+        Returns True if warehouse is usable.
+    """
+    if os.path.isdir(path):
+        return await _fsck_warehouse(path)
+    locations[0] = WarehouseLocation(
+        name='Unsorted',
+        how_to_find='',
+        remarks='Pseudolocation for unsorted items'
+    )
+    
+    
+
+#
+# Public
+#
+async def init(name: str) -> bool:
+    """ Initialize warehouse API. """
+    global _warehouse_name, _warehouse_path
+    _warehouse_name = name
+    _warehouse_path = f'warehouse_{name}'
+    return await _create_warehouse(_warehouse_path)