# -*- coding: utf-8 -*-
from .processor_utils import get_scl_representation, format_variable_name,get_target_scl_name


# TODO: Import necessary functions from processor_utils
# Example: from .processor_utils import get_scl_representation, format_variable_name
# Or: import processors.processor_utils as utils

# TODO: Define constants if needed (e.g., SCL_SUFFIX) or import them
SCL_SUFFIX = "_scl"

# --- Function code starts ---
def process_coil(instruction, network_id, scl_map, access_map, data):
    """Genera la asignación para Coil. Si la entrada viene de PBox/NBox,
       añade la actualización de memoria del flanco DESPUÉS de la asignación."""
    instr_uid = instruction["instruction_uid"]
    instr_type = instruction["type"]
    if instr_type.endswith(SCL_SUFFIX) or "_error" in instr_type:
        return False

    coil_input_info = instruction["inputs"].get("in")
    operand_info = instruction["inputs"].get("operand")

    in_rlo_scl = get_scl_representation(coil_input_info, network_id, scl_map, access_map)
    operand_scl = get_scl_representation(operand_info, network_id, scl_map, access_map)

    if in_rlo_scl is None or operand_scl is None: return False

    if not (operand_info and operand_info.get("type") == "variable"):
        instruction["scl"] = f"// ERROR: Coil {instr_uid} operando no es variable o falta info"
        instruction["type"] = instr_type + "_error"
        return True

    operand_scl_formatted = format_variable_name(operand_scl)
    if in_rlo_scl == "(TRUE)": in_rlo_scl = "TRUE"
    elif in_rlo_scl == "(FALSE)": in_rlo_scl = "FALSE"

    # Generar la asignación SCL principal de la bobina
    scl_assignment = f"{operand_scl_formatted} := {in_rlo_scl};"
    scl_final = scl_assignment # Inicializar SCL final

    # --- Lógica para añadir actualización de memoria de flancos ---
    mem_update_scl_combined = None
    if isinstance(coil_input_info, dict) and coil_input_info.get("type") == "connection":
        source_uid = coil_input_info.get("source_instruction_uid")
        source_pin = coil_input_info.get("source_pin")

        # Buscar la instrucción fuente PBox/NBox
        source_instruction = None
        network_logic = next((net["logic"] for net in data["networks"] if net["id"] == network_id), [])
        for instr in network_logic:
            if instr.get("instruction_uid") == source_uid:
                source_instruction = instr
                break

        if source_instruction:
            source_type = source_instruction.get("type","").replace('_scl','').replace('_error','')
            # Si la fuente es PBox o NBox y tiene el campo temporal con la actualización
            if source_type in ["PBox", "NBox"] and '_edge_mem_update_scl' in source_instruction:
                mem_update_scl_combined = source_instruction.get('_edge_mem_update_scl') # Obtener update+comment

                if mem_update_scl_combined:
                    # Añadir la actualización DESPUÉS de la asignación de la bobina, USANDO \n
                    scl_final = f"{scl_assignment}\n{mem_update_scl_combined}"
                    # Marcar la instrucción PBox/NBox para que x3 no escriba su SCL (que ahora está vacío/comentario)
                    source_instruction['scl'] = f"// Logic moved to Coil {instr_uid}" # Actualizar PBox/NBox SCL

    instruction["scl"] = scl_final
    instruction["type"] = instr_type + SCL_SUFFIX
    return True

# EN x2_process.py, junto a otras funciones process_xxx

# --- Function code ends ---

# --- Processor Information Function ---
def get_processor_info():
    """Devuelve la información para el procesador Coil."""
    return {'type_name': 'coil', 'processor_func': process_coil, 'priority': 3}