# coding: utf-8
from os import scandir
from os.path import isfile, exists
from sys import argv
from openpyxl import load_workbook
from time import time, sleep, strftime, localtime
from threading import Thread
from pandas import read_csv


class GetThreadResult(Thread):
    def __init__(self, func, args=()):
        super(GetThreadResult, self).__init__()
        self.func = func
        self.args = args
        self.result = 0

    def run(self):
        sleep(1)
        self.result = self.func(*self.args)

    def get_result(self):
        Thread.join(self)  # 等待线程执行完毕
        try:
            return self.result
        except Exception as Err:
            return None


def data_process(result_file, raw_data_dirs, av, rr, axis, vel, trq, w2t, estop):
    # 功能：完成一个结果文件的数据处理
    # 参数：结果文件，数据目录，以及预读取的参数
    # 返回值：-
    file_name = result_file.split('\\')[-1]
    w2t(f"正在打开文件 {file_name} 需要 1min 左右", 1, 0, 'orange')

    global stop
    stop = 0
    t_excel = GetThreadResult(load_workbook, args=(result_file, ))
    t_wait = Thread(target=w2t_local, args=('.', 1, w2t))
    t_excel.start()
    t_wait.start()
    t_excel.join()
    wb_result = t_excel.get_result()
    stop = 1
    sleep(1.1)
    w2t('')

    prefix = result_file.split('\\')[-1].split('_')[0]
    for raw_data_dir in raw_data_dirs:
        if raw_data_dir.split('\\')[-1].split('_')[0] == prefix:
            now_doing_msg(raw_data_dir, 'start', w2t)
            _, data_files = traversal_files(raw_data_dir, w2t)
            # 数据文件串行处理模式---------------------------------
            # count = 1
            # for data_file in data_files:
            #     now_doing_msg(data_file, 'start', w2t)
            #     single_file_process(data_file, wb_result, count, av, rr, axis, vel, trq, w2t, estop)
            #     count += 1
            #     now_doing_msg(data_file, 'done', w2t)
            # ---------------------------------------------------
            # 数据文件并行处理模式---------------------------------
            threads = [Thread(target=single_file_process, args=(data_files[0], wb_result, 1, av, rr, axis, vel, trq, w2t, estop)),
                       Thread(target=single_file_process, args=(data_files[1], wb_result, 2, av, rr, axis, vel, trq, w2t, estop)),
                       Thread(target=single_file_process, args=(data_files[2], wb_result, 3, av, rr, axis, vel, trq, w2t, estop))]
            [t.start() for t in threads]
            [t.join() for t in threads]
            # ---------------------------------------------------
            now_doing_msg(raw_data_dir, 'done', w2t)

    now_doing_msg(result_file, 'done', w2t)
    w2t(f"正在保存文件 {file_name} 需要 1min 左右", 1, 0, 'orange')
    stop = 0
    t_excel = Thread(target=wb_result.save, args=(result_file, ))
    t_wait = Thread(target=w2t_local, args=('.', 1, w2t))
    t_excel.start()
    t_wait.start()
    t_excel.join()
    stop = 1
    sleep(1.1)
    w2t('\n')


def check_files(raw_data_dirs, result_files, w2t):
    # 功能：检查数据文件以及结果文件的合规性
    # 参数：数据文件夹，结果文件
    # 返回值：-
    if len(result_files) != 3:
        msg = "结果文件数目错误，结果文件有且只有三个，请确认！"
        for result_file in result_files:
            w2t(result_file)
        w2t(msg, 0, 2, 'red')

    prefix = []
    for result_file in result_files:
        prefix.append(result_file.split('\\')[-1].split('_')[0])
    if not sorted(prefix) == sorted(['reach33', 'reach66', 'reach100']):
        wd = result_files[0].split('\\')
        del wd[-1]
        wd = '\\'.join(wd)
        msg = f"""请关闭所有相关数据文件，并检查工作目录 {wd} 下，有且只允许有类似如下三个文件：
              1. reach33_XXX制动性能测试.xlsx
              2. reach66_XXX制动性能测试.xlsx
              3. reach100_XX制动性能测试.xlsx"""
        w2t(msg, 0, 3, 'red')

    for raw_data_dir in raw_data_dirs:
        components = raw_data_dir.split('\\')[-1].split('_')
        sorted(components)
        if components[0] not in ['reach33', 'reach66', 'reach100'] or \
                components[1] not in ['load33', 'load66', 'load100'] or \
                components[2] not in ['speed33', 'speed66', 'speed100']:
            msg = f"""报错信息：数据目录 {raw_data_dir} 命名不合规，请参考如下形式：
命名规则：reachAA_loadBB_speedCC
规则解释：AA/BB/CC 指的是臂展/负载/速度的比例，例如reach66_load100_speed33：66%臂展，100%负载以及33%速度情况下的测试结果文件夹"""
            w2t(msg, 0, 4, 'red')

        _, raw_data_files = traversal_files(raw_data_dir, w2t)
        if len(raw_data_files) != 3:
            msg = f"数据目录 {raw_data_dir} 下数据文件个数错误，每个数据目录下有且只能有三个以 .data 为后缀的数据文件"
            w2t(msg, 0, 5, 'red')
        for raw_data_file in raw_data_files:
            if not raw_data_file.split('\\')[-1].endswith('.data'):
                msg = f"数据文件 {raw_data_file} 后缀错误，每个数据目录下有且只能有三个以 .data 为后缀的数据文件"
                w2t(msg, 0, 6, 'red')

    w2t("数据目录合规性检查结束，未发现问题......")


def now_doing_msg(docs, flag, w2t):
    # 功能：输出正在处理的文件或目录
    # 参数：文件或目录，start 或 done 标识
    # 返回值：-
    now = strftime('%Y-%m-%d %H:%M:%S', localtime(time()))
    file_type = 'file' if isfile(docs) else 'dir'
    if flag == 'start' and file_type == 'dir':
        w2t(f"[{now}] 正在处理目录 {docs} 中的数据......")
    elif flag == 'start' and file_type == 'file':
        w2t(f"[{now}] 正在处理文件 {docs} 中的数据......")
    elif flag == 'done' and file_type == 'dir':
        w2t(f"[{now}] 目录 {docs} 数据文件已处理完毕")
    elif flag == 'done' and file_type == 'file':
        w2t(f"[{now}] 文件 {docs} 数据已处理完毕")


def w2t_local(msg, wait, w2t):
    while True:
        global stop
        if stop == 0 and wait != 0:
            sleep(1)
            w2t(msg, wait, 0, 'orange')
        else:
            break


def single_file_process(data_file, wb_result, count, av, rr, axis, vel, trq, w2t, estop):
    # 功能：完成单个数据文件的处理
    # 参数：如上
    # 返回值：-
    df = read_csv(data_file, sep='\t')

    conditions = sorted(data_file.split('\\')[-2].split('_'))  # ['loadxx', 'reachxx', 'speedxx']
    result_sheet_name = find_result_sheet_name(conditions, count)
    ws_result = wb_result[result_sheet_name]

    row_start, row_end = find_row_start(data_file, df, conditions, av, rr, axis, vel, w2t, estop)
    copy_data_to_result(df, ws_result, row_start, row_end, vel, trq, estop)


def copy_data_to_result(df, ws_result, row_start, row_end, vel, trq, estop):
    # 功能：将数据文件中有效数据拷贝至结果文件对应的 sheet
    # 参数：如上
    # 返回值：-
    # 结果文件数据清零

    data = []
    for _row in range(row_start, row_end + 1):
        data.append(df.iloc[_row, vel-1])
        data.append(df.iloc[_row, trq-1])
        data.append(df.iloc[_row, estop-1])

    i = 0
    row_max = 2000 if row_end-row_start < 2000 else row_end-row_start+20
    for _row in range(2, row_max):
        try:
            ws_result.cell(row=_row, column=1).value = data[i]
            ws_result.cell(row=_row, column=2).value = data[i+1]
            ws_result.cell(row=_row, column=3).value = data[i+2]
            i += 3
        except:
            ws_result.cell(row=_row, column=1).value = None
            ws_result.cell(row=_row, column=2).value = None
            ws_result.cell(row=_row, column=3).value = None


def find_result_sheet_name(conditions, count):
    # 功能：获取结果文件准确的sheet页名称
    # 参数：臂展和速度的列表
    # 返回值：结果文件对应的sheet name
    # 33%负载_33%速度_1 - ['loadxx', 'reachxx', 'speedxx']
    load = conditions[0].removeprefix('load')
    speed = conditions[2].removeprefix('speed')
    result_sheet_name = f"{load}%负载_{speed}%速度_{count}"

    return result_sheet_name


def find_row_start(data_file, df, conditions, av, rr, axis, vel, w2t, estop):
    # 功能：查找数据文件中有效数据的行号，也即最后一个速度下降的点位
    # 参数：如上
    # 返回值：速度下降点位，最后的数据点位
    ratio = float(conditions[2].removeprefix('speed'))/100
    av_max = av * ratio
    row_max = df.index[-1]
    # threshold = 30 if axis == 2 and conditions[0].removeprefix('load') == '100' else 10
    threshold = 0.95

    for _row in range(row_max, -1, -1):
        if df.iloc[_row, estop-1] != 0:
            row_start = _row-20 if _row-20 > 0 else 0
            break
    else:
        w2t(f"数据文件 {data_file} 采集的数据中没有 ESTOP 为非 0 的情况，需要确认", 0, 9, 'red')

    for _row in range(row_start, row_max):
        speed_row = (df.iloc[_row, vel-1] * 180) / 3.1415926 * rr * 60 / 360
        if abs(speed_row) < 1:
            row_end = _row+100 if _row+100 <= row_max else row_max
            break
    else:
        w2t(f"数据文件 {data_file} 最后的速度未降为零 ", 0, 10, 'red')

    av_estop = abs((df.iloc[row_start-10:row_start+10, vel-1].abs().mean() * 180) / 3.1415926)
    if abs(av_estop/av_max) < threshold:
        filename = data_file.split('\\')[-1]
        w2t(f"[av_estop: {av_estop:.2f} | shouldbe: {av_max:.2f}] 数据文件 {filename} 触发 ESTOP 时未采集到指定百分比的最大速度，需要检查", 0, 0, '#8A2BE2')

    return row_start, row_end


def traversal_files(path, w2t):
    # 功能：以列表的形式分别返回指定路径下的文件和文件夹，不包含子目录
    # 参数：路径
    # 返回值：路径下的文件夹列表 路径下的文件列表
    if not exists(path):
        msg = f'数据文件夹{path}不存在，请确认后重试......'
        w2t(msg, 0, 1, 'red')
    else:
        dirs = []
        files = []
        for item in scandir(path):
            if item.is_dir():
                dirs.append(item.path)
            elif item.is_file():
                files.append(item.path)

        return dirs, files


def main(path, av, rr, axis, vel, trq, estop, w2t):
    # 功能：执行处理所有数据文件
    # 参数：initialization函数的返回值
    # 返回值：-
    time_start = time()
    raw_data_dirs, result_files = traversal_files(path, w2t)

    try:
        # threads = []
        check_files(raw_data_dirs, result_files, w2t)

        prefix = []
        for raw_data_dir in raw_data_dirs:
            prefix.append(raw_data_dir.split('\\')[-1].split("_")[0])

        for result_file in result_files:
            if result_file.split('\\')[-1].split('_')[0] not in set(prefix):
                continue
            else:
                now_doing_msg(result_file, 'start', w2t)
                data_process(result_file, raw_data_dirs, av, rr, axis, vel, trq, w2t, estop)
            # threads.append(Thread(target=data_process, args=(result_file, raw_data_dirs, AV, RR, RC, AXIS)))
        # [t.start() for t in threads]
        # [t.join() for t in threads]
    except Exception as Err:
        msg = f"出现错误：{Err}\n程序运行错误，请检查配置文件是否准确设定，以及数据文件组织是否正确，也有可能是结果文件损坏，尝试重新复制一份，再运行！"
        w2t(msg, 0, 11, 'red')

    w2t("----------------------------------------------------------")
    w2t("全部处理完毕")
    time_end = time()
    time_total = time_end - time_start
    msg = f"数据处理时间：{time_total // 3600:02.0f} h {time_total % 3600 // 60:02.0f} m {time_total % 60:02.0f} s"
    w2t(msg)


if __name__ == "__main__":
    stop = 0
    main(path=argv[1], av=argv[2], rr=argv[3], axis=argv[4], vel=argv[5], trq=argv[6], estop=argv[7], w2t=argv[8])