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lib/aludel/interfaces/llm/error_parser.ex
defmodule Aludel.Interfaces.LLM.ErrorParser do
@moduledoc """
Shared error parsing logic for LLM provider adapters.
Normalizes HTTP errors to consistent error tuples across all providers.
"""
@doc """
Parses HTTP errors into standardized error tuples.
## Examples
iex> parse_error(%{status: 401})
{:error, {:auth_error, "Invalid API key"}}
iex> parse_error(%{status: 429})
{:error, {:rate_limit, nil}}
"""
def parse_error(%{status: 401}), do: {:error, {:auth_error, "Invalid API key"}}
def parse_error(%{status: 429}), do: {:error, {:rate_limit, nil}}
def parse_error(%{status: status}) when status in [400, 404],
do: {:error, {:invalid_request, "Invalid request"}}
def parse_error(%{status: status} = error),
do: {:error, {:api_error, status, inspect(error)}}
def parse_error(reason), do: {:error, {:network_error, reason}}
end