ns = params_kw.copy()
for k,v in ns.items():
	if v == 'NaN' or v == 'null':
		ns[k] = None

# Recalculate available_credit when credit_limit changes
if 'credit_limit' in ns and ns['credit_limit'] is not None:
	credit_limit_val = float(ns['credit_limit'])
	# Get current used_credit from DB
	db = DBPools()
	dbname = get_module_dbname('accounting')
	async with db.sqlorContext(dbname) as sor:
		recs = await sor.R('credit_limit', {'id': ns['id']})
		if len(recs) > 0:
			used = float(recs[0].get('used_credit', 0))
			ns['available_credit'] = credit_limit_val - used

from datetime import datetime
ns['updated_at'] = datetime.now()

db = DBPools()
dbname = get_module_dbname('accounting')
async with db.sqlorContext(dbname) as sor:
	r = await sor.U('credit_limit', ns)
	debug('update credit_limit success')
	return {
		"widgettype":"Message",
		"options":{
			"title":"信用额度更新成功",
			"cwidth":16,
			"cheight":9,
			"timeout":3,
			"message":"ok"
		} 
	}
		
return {
	"widgettype":"Error",
	"options":{
		"title":"更新失败",
		"cwidth":16,
		"cheight":9,
		"timeout":3,
		"message":"failed"
	}
}