import json

with open('data.json', 'r') as f:
    data = json.load(f)

target = 'files/pasta-1/testes.html'


def find_target(target, data, current_path=''):
    for item in data:
        if item['type'] == 'file' and f'{current_path}/{item["name"]}' == target:
            return item
        else:
            if item.get('items', []):
                if current_path:
                    current_path = f'{current_path}/{item["name"]}'
                else:
                    current_path = f'{item["name"]}'
                return find_target(
                    target, item['items'], current_path=current_path)
    return None


print(find_target(target, [data]))