import os
import shutil

from service.trans_service import drop_table, creat_table_and_add_partition
from utils.conf.read_conf import *
from utils.log.trans_log import trans_print


class PathsAndTable(object):
    def __init__(self, batch_no=None, batch_name=None, read_path=None, field_name=None, read_type=None,
                 save_db=True, save_zip=True):
        self.batch_no = batch_no
        self.batch_name = batch_name
        self.read_path = read_path
        self.field_name = field_name
        self.read_type = read_type
        self.save_db = save_db
        self.save_zip = save_zip
        self.multi_pool_count = 6

        yaml_config = yaml_conf(os.environ.get('ETL_CONF', "/data/config/etl_config.yaml"))

        self.tmp_base_path = read_conf(yaml_config, "tmp_base_path", "/tmp")

        save_path_conf = read_conf(yaml_config, "save_path")
        if save_path_conf:
            self.save_path = save_path_conf + os.sep + self.field_name
        else:
            find_index = read_path.find(read_conf(yaml_config, 'etl_origin_path_contain', "etl_origin_path_contain"))
            if find_index == -1:
                raise Exception("路径未包含原始数据特定字符:" + read_path)
            self.save_path = read_path[0:find_index] + os.sep + "清理数据"

        if self.save_path is None:
            raise Exception("未配置保存路径:" + read_path)

    def get_save_path(self):
        return os.path.join(self.save_path, self.batch_no + "_" + self.batch_name, self.read_type)

    def get_save_tmp_path(self):
        return os.path.join(self.tmp_base_path, self.field_name, self.batch_no + "_" + self.batch_name,
                            self.read_type)

    def get_excel_tmp_path(self):
        return os.path.join(self.get_save_tmp_path(), 'excel_tmp' + os.sep)

    def get_read_tmp_path(self):
        return os.path.join(self.get_save_tmp_path(), 'read_tmp')

    def get_merge_tmp_path(self, wind_turbine_number=None):
        if wind_turbine_number is None:
            return os.path.join(self.get_save_tmp_path(), 'merge_tmp')
        else:
            return os.path.join(self.get_save_tmp_path(), 'merge_tmp', str(wind_turbine_number))

    def get_table_name(self):
        return "_".join([self.batch_no, self.read_type])

    def delete_batch_files(self):
        trans_print("开始删除已存在的批次文件夹")
        if os.path.exists(self.get_save_path()):
            shutil.rmtree(self.get_save_path())
        trans_print("删除已存在的批次文件夹")

    def delete_tmp_files(self):
        trans_print("开始删除临时文件夹")
        if os.path.exists(self.get_save_tmp_path()):
            shutil.rmtree(self.get_save_tmp_path())
        trans_print("删除临时文件夹删除成功")

    def delete_batch_db(self):
        if self.save_db:
            trans_print("开始删除表")
            table_name = self.get_table_name()
            drop_table(table_name, self.save_db)
            trans_print("删除表结束")

    def create_batch_db(self, wind_names=list()):
        if self.save_db:
            trans_print("开始创建表")
            creat_table_and_add_partition(self.get_table_name(), wind_names, self.read_type)
            trans_print("建表结束")