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102 lines
4.0 KiB
Python
102 lines
4.0 KiB
Python
from pprint import pprint
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class ConfigurationResolver:
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"""
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A class to resolve `link` entries in a nested configuration structure.
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Supports navigation through dictionaries, lists, and `subitems`.
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"""
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def __init__(self, config):
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self.config = config
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def resolve_links(self):
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"""
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Resolves all `link` entries in the configuration.
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"""
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self._recursive_resolve(self.config, self.config)
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def _recursive_resolve(self, current_config, root_config):
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"""
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Recursively resolves `link` entries in the configuration.
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"""
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if isinstance(current_config, dict):
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for key, value in list(current_config.items()):
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if key == "link":
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try:
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target = self._find_entry(root_config, value.lower(), True)
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if isinstance(target, list) and len(target) > 2:
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target = self._find_entry(root_config, value.lower(), False)
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current_config.clear()
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current_config.update(target)
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except Exception as e:
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raise ValueError(
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f"Error resolving link '{value}': {str(e)}. "
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f"Current path: {key}, Current config: {current_config}"
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)
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else:
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self._recursive_resolve(value, root_config)
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elif isinstance(current_config, list):
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for item in current_config:
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self._recursive_resolve(item, root_config)
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def _get_subitems(self,current):
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if isinstance(current, dict) and ("subitems" in current and current["subitems"]):
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current = current["subitems"]
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return current
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def _find_by_name(self,current, part):
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return next(
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(item for item in current if isinstance(item, dict) and item.get("name", "").lower() == part),
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None
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)
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def _find_entry(self, config, path, subitems):
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"""
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Finds an entry in the configuration by a dot-separated path.
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Supports both dictionaries and lists with `subitems` navigation.
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"""
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parts = path.split('.')
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current = config
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for part in parts:
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if isinstance(current, list):
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# Look for a matching name in the list
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found = self._find_by_name(current,part)
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if found:
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print(
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f"Matching entry for '{part}' in list. Path so far: {' > '.join(parts[:parts.index(part)+1])}. "
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f"Current list: {current}"
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)
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else:
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raise ValueError(
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f"No matching entry for '{part}' in list. Path so far: {' > '.join(parts[:parts.index(part)+1])}. "
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f"Current list: {current}"
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)
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current = found
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elif isinstance(current, dict):
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# Case-insensitive dictionary lookup
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key = next((k for k in current if k.lower() == part), None)
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if key is None:
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current = self._find_by_name(current["subitems"],part)
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if not current:
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raise KeyError(
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f"Key '{part}' not found in dictionary. Path so far: {' > '.join(parts[:parts.index(part)+1])}. "
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f"Current dictionary: {current}"
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)
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else:
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current = current[key]
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else:
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raise ValueError(
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f"Invalid path segment '{part}'. Current type: {type(current)}. "
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f"Path so far: {' > '.join(parts[:parts.index(part)+1])}"
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)
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if subitems:
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current = self._get_subitems(current)
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return current
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def get_config(self):
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"""
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Returns the resolved configuration.
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"""
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return self.config
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