215 lines
10 KiB
Python
215 lines
10 KiB
Python
from datetime import datetime
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import re
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from typing import List, Optional, Tuple
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from dataclasses import dataclass, field
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ALLOWED_INPUT_TYPES = {"text", "number", "date", "select"}
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@dataclass
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class Attribute:
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"""Base class for all attribute types."""
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attrib_name: str
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display_name: str
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html_input_type: str
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required: bool = False
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unique: bool = False
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primary: bool = False
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default_val: Optional[str] = None
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compareto: Optional[List[Tuple[str, str]]] = None
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def validate(self) -> Optional[str]:
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"""Validate common attributes. Returns an error message if invalid, otherwise None."""
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if not self.attrib_name:
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return "Missing attribute name."
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if not self.display_name:
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return f"Missing display name for attribute '{self.attrib_name}'."
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if not self.html_input_type:
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return f"Missing input type for attribute '{self.attrib_name}'."
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if self.html_input_type not in ALLOWED_INPUT_TYPES:
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return f"Invalid input type '{self.html_input_type}' for attribute '{self.attrib_name}'."
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return None
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@dataclass
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class textAttribute(Attribute):
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"""Class for text attributes."""
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regex: Optional[str] = None
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min_length: Optional[int] = None
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max_length: Optional[int] = 50
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allowed_chars: Optional[str] = None
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def __post_init__(self):
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"""Post-initialization to set the HTML input type."""
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self.html_input_type = "text"
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def validate(self) -> Optional[str]:
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"""Validate text-specific attributes."""
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error = super().validate()
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if error:
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return error
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if self.min_length is not None and self.max_length is not None:
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if not isinstance(self.min_length, int) or not isinstance(self.max_length, int):
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return f"Min and max lengths must be integers for '{self.attrib_name}'."
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if int(self.min_length) > int(self.max_length):
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return f"Max length must be greater than min length for '{self.attrib_name}'."
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if self.default_val is not None:
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if self.regex is not None:
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compiled_regex = re.compile(self.regex)
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if not compiled_regex.match(str(self.default_val)):
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return f"Default value for '{self.attrib_name}' must match the pattern: {self.regex}"
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if self.allowed_chars is not None:
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for char in self.default_val:
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if char not in self.allowed_chars:
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return f"Invalid character '{char}' in default value for '{self.attrib_name}'. Allowed characters are: {self.allowed_chars}"
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if self.min_length is not None:
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if len(self.default_val) < int(self.min_length):
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return f"Invalid default value for '{self.attrib_name}'. The minimum length is: {self.min_length}"
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if self.max_length is not None:
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if len(self.default_val) > int(self.max_length):
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return f"Invalid default value for '{self.attrib_name}'. The maximum length is: {self.max_length}"
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return None
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@dataclass
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class intAttribute(Attribute):
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"""Class for integer attributes."""
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min_val: Optional[int] = None
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max_val: Optional[int] = None
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step: int = 1
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def __post_init__(self):
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"""Post-initialization to set the HTML input type."""
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self.html_input_type = "number"
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def validate(self) -> Optional[str]:
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"""Validate integer-specific attributes."""
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error = super().validate()
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if error:
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return error
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if self.min_val is not None and not isinstance(self.min_val, int):
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return f"min_val must be an integer for attribute '{self.attrib_name}'."
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if self.max_val is not None and not isinstance(self.max_val, int):
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return f"max_val must be an integer for attribute '{self.attrib_name}'."
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if self.min_val is not None and self.max_val is not None and self.min_val > self.max_val:
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return f"min_val cannot be greater than max_val for attribute '{self.attrib_name}'."
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if self.step is not None:
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if not isinstance(self.step, int):
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return f"Step must be an integer for attribute '{self.attrib_name}'."
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if self.step <= 0:
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return f"Step must be a positive integer for attribute '{self.attrib_name}'."
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if self.min_val is not None and self.max_val is not None:
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range_val = self.max_val - self.min_val
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if self.step > range_val:
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return f"Step value is too large for attribute '{self.attrib_name}'."
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if self.default_val is not None:
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if not isinstance(self.default_val, int):
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return f"default_val must be an integer for attribute '{self.attrib_name}'."
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if self.min_val is not None and self.default_val < self.min_val:
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return f"default_val cannot be less than min_val for attribute '{self.attrib_name}'."
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if self.max_val is not None and self.default_val > self.max_val:
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return f"default_val cannot be greater than max_val for attribute '{self.attrib_name}'."
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return None
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@dataclass
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class floatAttribute(Attribute):
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"""Class for float attributes."""
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min_val: Optional[float] = None
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max_val: Optional[float] = None
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step: float = 0.1
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def __post_init__(self):
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"""Post-initialization to set the HTML input type."""
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self.html_input_type = "number"
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def validate(self) -> Optional[str]:
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"""Validate float-specific attributes."""
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error = super().validate()
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if error:
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return error
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if self.min_val is not None and not isinstance(self.min_val, (int, float)):
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return f"min_val must be a number for attribute '{self.attrib_name}'."
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if self.max_val is not None and not isinstance(self.max_val, (int, float)):
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return f"max_val must be a number for attribute '{self.attrib_name}'."
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if self.min_val is not None and self.max_val is not None and self.min_val > self.max_val:
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return f"min_val cannot be greater than max_val for attribute '{self.attrib_name}'."
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if self.step is not None:
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if not isinstance(self.step, (int, float)):
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return f"Step must be an float for attribute '{self.attrib_name}'."
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if self.step <= 0:
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return f"Step must be a positive float for attribute '{self.attrib_name}'."
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if self.min_val is not None and self.max_val is not None:
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range_val = self.max_val - self.min_val
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if self.step > range_val:
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return f"Step value is too large for attribute '{self.attrib_name}'."
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if self.default_val is not None:
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if not isinstance(self.default_val, float):
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return f"default_val must be a number for attribute '{self.attrib_name}'."
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if self.min_val is not None and self.default_val < self.min_val:
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return f"default_val cannot be less than min_val for attribute '{self.attrib_name}'."
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if self.max_val is not None and self.default_val > self.max_val:
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return f"default_val cannot be greater than max_val for attribute '{self.attrib_name}'."
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return None
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@dataclass
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class dateAttribute(Attribute):
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"""Class for date attributes."""
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min_val: Optional[str] = None
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max_val: Optional[str] = None
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def __post_init__(self):
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"""Post-initialization to set the HTML input type."""
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self.html_input_type = "date"
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def _is_date(self, value: str) -> bool:
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"""Check if a value is a valid date in YYYY-MM-DD format."""
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try:
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datetime.strptime(value, "%Y-%m-%d")
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return True
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except ValueError:
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return False
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def validate(self) -> Optional[str]:
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"""Validate date-specific attributes."""
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error = super().validate()
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if error:
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return error
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if self.min_val is not None and not self._is_date(self.min_val):
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return f"min_val must be a valid date (YYYY-MM-DD) for attribute '{self.attrib_name}'."
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if self.max_val is not None and not self._is_date(self.max_val):
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return f"max_val must be a valid date (YYYY-MM-DD) for attribute '{self.attrib_name}'."
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if self.min_val is not None and self.max_val is not None:
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min_date = datetime.strptime(self.min_val, "%Y-%m-%d")
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max_date = datetime.strptime(self.max_val, "%Y-%m-%d")
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if max_date < min_date:
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return f"max_val cannot be earlier than min_val for attribute '{self.attrib_name}'."
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if self.default_val is not None and not self._is_date(self.default_val):
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return f"default_val must be a valid date (YYYY-MM-DD) for attribute '{self.attrib_name}'."
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if self.default_val is not None:
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default_date = datetime.strptime(self.default_val, "%Y-%m-%d")
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if self.min_val is not None:
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min_date = datetime.strptime(self.min_val, "%Y-%m-%d")
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if default_date < min_date:
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return f"default_val cannot be earlier than min_val for attribute '{self.attrib_name}'."
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if self.max_val is not None:
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max_date = datetime.strptime(self.max_val, "%Y-%m-%d")
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if default_date > max_date:
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return f"default_val cannot be later than max_val for attribute '{self.attrib_name}'."
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return None
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@dataclass
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class selectAttribute(Attribute):
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"""Class for select attributes."""
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options: List[str]
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def __post_init__(self):
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"""Post-initialization to set the HTML input type."""
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self.html_input_type = "select"
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def validate(self) -> Optional[str]:
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"""Validate select-specific attributes."""
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error = super().validate()
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if error:
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return error
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if not self.options:
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return f"options cannot be empty for attribute '{self.attrib_name}'."
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if self.default_val is not None and self.default_val not in self.options:
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return f"default_val must be one of the options for attribute '{self.attrib_name}'."
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return None |