import frappe
import requests
from frappe import _

@frappe.whitelist()
def sync_custom_fields_to_woocommerce(item_code):
    """Sync Custom Fields vom Item nach WooCommerce (ACF)"""
    
    if not item_code:
        frappe.throw(_("Kein Item Code angegeben"))
    
    doc = frappe.get_doc("Item", item_code)
    
    if not doc.get("woocommerce_servers"):
        return False
    
    # Hier die Felder definieren: ERPNext-Feldname : ACF-Feldname in WordPress
    field_mapping = {
        "custom_zustand2": "zustand2",
        # Weitere Felder hier hinzufügen, z.B.:
        # "custom_mein_feld": "mein_feld",
        # "custom_preisstufe": "preisstufe",
        # "custom_bemerkung": "bemerkung",
    }
    
    success_count = 0
    
    for wc_link in doc.woocommerce_servers:
        if not wc_link.enable_sync or not wc_link.woocommerce_id:
            continue
            
        try:
            wc_server = frappe.get_doc("WooCommerce Server", wc_link.woocommerce_server)
            
            base_url = wc_server.woocommerce_server_url.rstrip("/")
            if not base_url.endswith("/wp-json/wc/v3"):
                base_url += "/wp-json/wc/v3"
            
            url = f"{base_url}/products/{wc_link.woocommerce_id}"
            auth = (wc_server.api_key, wc_server.api_secret)
            
            # Aktuelles Produkt holen
            resp = requests.get(url, auth=auth, timeout=20)
            resp.raise_for_status()
            product = resp.json()
            
            # ACF Daten aufbauen / mergen
            acf_data = product.get("acf", {})
            
            # Felder übertragen
            for erp_field, acf_field in field_mapping.items():
                value = doc.get(erp_field)
                if value is not None:
                    acf_data[acf_field] = value
            
            payload = {"acf": acf_data}
            
            # Update an WooCommerce
            update_resp = requests.put(url, json=payload, auth=auth, timeout=20)
            update_resp.raise_for_status()
            
            success_count += 1
            
        except Exception as e:
            frappe.log_error(
                "Fehler beim Sync Custom Fields für Item {}: {}".format(item_code, str(e)),
                "ACF Custom Fields Sync"
            )
    
    if success_count > 0:
        frappe.msgprint(
            "Custom Fields fuer {} WooCommerce-Produkt(e) synchronisiert".format(success_count),
            alert=True,
            indicator="green"
        )
        return True
    return False