#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""List approval steps"""
import json

result = {'success': False, 'rows': [], 'total': 0}

try:
    dbname = get_module_dbname('workflow_approval')
    workflow_id = params_kw.get('workflow_id', '')
    
    sql = "SELECT id, workflow_id, step_name, step_number as step_order, approver_role as approver_type, approver_id as approver_value, description, timeout_hours FROM approval_step"
    ns = {
        'page': int(params_kw.get('page', 1)),
        'rows': int(params_kw.get('rows', 50)),
        'sort': 'id'
    }
    if workflow_id:
        ns['where'] = f"workflow_id='{workflow_id}'"

    async with DBPools().sqlorContext(dbname) as sor:
        data = await sor.sqlExe(sql, ns)
        if isinstance(data, dict):
            result['total'] = data.get('total', 0)
            result['rows'] = [dict(r) for r in data.get('rows', [])]
        else:
            result['rows'] = [dict(r) for r in (data or [])]
            result['total'] = len(result['rows'])
        result['success'] = True
except Exception as e:
    result['error'] = str(e)

return json.dumps(result, ensure_ascii=False, default=str)