import os
from pathlib import Path
import subprocess

import yaml

import pipe

YAML_PATH = "./cicd/configs"
LOG_FILE = "temp_log"


class Dumper(yaml.Dumper):
    def increase_indent(self, flow=False, *args, **kwargs):
        return super().increase_indent(flow=flow, indentless=False)


def get_yaml_path(uid):
    if not os.path.exists(YAML_PATH):
        os.makedirs(YAML_PATH)
    if not os.path.exists(f"{YAML_PATH}/{uid}_config.yaml"):
        os.system(f"cp config.yaml {YAML_PATH}/{uid}_config.yaml")
    return f"{YAML_PATH}/{uid}_config.yaml"


# read scanners from yaml file
# return a list of scanners
def read_scanners(uid):
    scanners = []
    with open(get_yaml_path(uid), "r") as f:
        config = yaml.load(f, Loader=yaml.FullLoader)
        scanners = config.get("detectors", [])
    return scanners


# convert a list of scanners to yaml file
def write_scanners(scanners, uid):
    with open(get_yaml_path(uid), "r") as f:
        config = yaml.load(f, Loader=yaml.FullLoader)
        if config:
            config["detectors"] = scanners
    # save scanners to detectors in yaml
    with open(get_yaml_path(uid), "w") as f:
        yaml.dump(config, f, Dumper=Dumper)


# read model_type from yaml file
def read_inference_type(uid):
    inference_type = ""
    with open(get_yaml_path(uid), "r") as f:
        config = yaml.load(f, Loader=yaml.FullLoader)
        inference_type = config.get("inference_type", "")
    return inference_type


# write model_type to yaml file
def write_inference_type(use_inference, inference_token, uid):
    with open(get_yaml_path(uid), "r") as f:
        config = yaml.load(f, Loader=yaml.FullLoader)
        if use_inference:
            config["inference_type"] = "hf_inference_api"
            config["inference_token"] = inference_token
        else:
            config["inference_type"] = "hf_pipeline"
            # FIXME: A quick and temp fix for missing token
            config["inference_token"] = ""
    # save inference_type to inference_type in yaml
    with open(get_yaml_path(uid), "w") as f:
        yaml.dump(config, f, Dumper=Dumper)


# read column mapping from yaml file
def read_column_mapping(uid):
    column_mapping = {}
    with open(get_yaml_path(uid), "r") as f:
        config = yaml.load(f, Loader=yaml.FullLoader)
        if config:
            column_mapping = config.get("column_mapping", dict())
    f.close()
    return column_mapping


# write column mapping to yaml file
def write_column_mapping(mapping, uid):
    with open(get_yaml_path(uid), "r") as f:
        config = yaml.load(f, Loader=yaml.FullLoader)
    f.close()

    if config is None:
        return
    if mapping is None and "column_mapping" in config.keys():
        del config["column_mapping"]
    else:
        config["column_mapping"] = mapping

    with open(get_yaml_path(uid), "w") as f:
        yaml.dump(config, f, Dumper=Dumper)
    f.close()


# convert column mapping dataframe to json
def convert_column_mapping_to_json(df, label=""):
    column_mapping = {}
    column_mapping[label] = []
    for _, row in df.iterrows():
        column_mapping[label].append(row.tolist())
    return column_mapping


def get_logs_file():
    try:
        with open(LOG_FILE, "r") as file:
            return file.read()
    except Exception:
        return "Log file does not exist"


def write_log_to_user_file(task_id, log):
    with open(f"./tmp/{task_id}.log", "a") as f:
        f.write(log)


def save_job_to_pipe(task_id, job, description, lock):
    with lock:
        pipe.jobs.append((task_id, job, description))


def pop_job_from_pipe():
    if len(pipe.jobs) == 0:
        return
    job_info = pipe.jobs.pop()
    pipe.current = job_info[2]
    task_id = job_info[0]
    write_log_to_user_file(task_id, f"Running job id {task_id}\n")
    command = job_info[1]

    # Link to LOG_FILE
    log_file_path = Path(LOG_FILE)
    if log_file_path.exists():
        log_file_path.unlink()
    os.symlink(f"./tmp/{task_id}.log", LOG_FILE)

    with open(f"./tmp/{task_id}.log", "a") as log_file:
        p = subprocess.Popen(command, stdout=log_file, stderr=subprocess.STDOUT)
        p.wait()
    pipe.current = None