Added first version of console autocompletion

src/core/sheerka/services/SheerkaFunctionsParametersHistory.py

@@ -0,0 +1,78 @@
+from dataclasses import dataclass
+from operator import itemgetter
+from typing import Tuple, Dict, List
+
+from cache.Cache import Cache
+from core.sheerka.services.sheerka_service import BaseService, ServiceObj
+
+
+@dataclass
+class FunctionParametersObj(ServiceObj):
+    name: str
+    params: Dict[int, List[Tuple[str, int]]]
+    #
+    # params = {
+    #    1 : [('value 1', 1), ('value 2', 5)],
+    #    3 : [('value 3', 5)]
+    #
+    # the key is the number of the parameter
+    # the values are a tuple of (value seen, number of time this value is seen)
+
+
+class SheerkaFunctionsParametersHistory(BaseService):
+    """
+    This service remembers the parameters expected by functions
+    """
+
+    NAME = "FunctionsParametersHistory"
+    FUNCTIONS_PARAMETERS_ENTRY = "FunctionsParametersHistory:Functions"
+
+    def __init__(self, sheerka):
+        super().__init__(sheerka)
+        self.cache = Cache(max_size=1024, default=lambda k: self.sheerka.sdp.get(self.FUNCTIONS_PARAMETERS_ENTRY, k))
+
+    def initialize(self):
+        self.sheerka.cache_manager.register_cache(self.FUNCTIONS_PARAMETERS_ENTRY, self.cache, True, True)
+        return self
+
+    def record_function_parameter(self, context, func_name: str, param_number: int, param_value: str):
+        """
+        Declare a new value to the parameter and function
+        :param context:
+        :param func_name:
+        :param param_number:
+        :param param_value:
+        :return:
+        """
+        old = self.cache.get(func_name)
+        if old is not None:
+            if param_number in old.params:
+                lst = old.params[param_number]
+                for i, value in enumerate(lst):  # value is a tuple (param_value, counter)
+                    if value[0] == param_value:
+                        lst[i] = (param_value, value[1] + 1)
+                        break
+                else:
+                    lst.append((param_value, 1))
+            else:
+                old.params[param_number] = [(param_value, 1)]
+            self.cache.put(func_name, old)
+        else:
+            obj = FunctionParametersObj(context.event.get_digest(), func_name, {param_number: [(param_value, 1)]})
+            self.cache.put(func_name, obj)
+
+    def get_function_parameters(self, func_name: str, param_number: int):
+        """
+        Return the list of param
+        :param func_name:
+        :param param_number:
+        :return:
+        """
+        values = self.cache.get(func_name)
+        if values is None:
+            return []
+
+        if param_number not in values.params:
+            return []
+
+        return [item[0] for item in sorted(values.params[param_number], key=itemgetter(1), reverse=True)]