from ..db_class.db import Case, User
from datetime import datetime
from . import common_core as CommonModel
from ..utils.utils import check_tag


def get_user_api(api_key):
    return User.query.filter_by(api_key=api_key).first()


def verif_set_recurring(data_dict):
    if "once" in data_dict:
        try:
            data_dict["once"] = datetime.strptime(data_dict["once"], '%Y-%m-%d') 
        except:
            return {"message": "once date bad format, YYYY-mm-dd"}
    if "weekly" in data_dict:
        try:
            data_dict["weekly"] = datetime.strptime(data_dict["weekly"], '%Y-%m-%d').date()
        except:
            return {"message": "weekly date bad format, YYYY-mm-dd"}
    if "monthly" in data_dict:
        try:
            data_dict["monthly"] = datetime.strptime(data_dict["monthly"], '%Y-%m-%d').date()
        except:
            return {"message": "monthly date bad format, YYYY-mm-dd"}
    return data_dict


def verif_create_case_task(data_dict, isCase):
    if "title" not in data_dict or not data_dict["title"]:
        return {"message": "Please give a title"}
    elif Case.query.filter_by(title=data_dict["title"]).first():
        return {"message": "Title already exist"}

    if "description" not in data_dict or not data_dict["description"]:
        data_dict["description"] = ""

    if "deadline_date" in data_dict:
        try:
            data_dict["deadline_date"] = datetime.strptime(data_dict["deadline_date"], '%Y-%m-%d') 
        except:
            return {"message": "deadline_date bad format"}
    else:
        data_dict["deadline_date"] = ""

    if "deadline_time" in data_dict:
        try:
            data_dict["deadline_time"] = datetime.strptime(data_dict["deadline_time"], '%H-%M') 
        except:
            return {"message": "deadline_time bad format"}
    else:
        data_dict["deadline_time"] = ""

    if "tags" in data_dict:
        for tag in data_dict["tags"]:
            if not check_tag(tag):
                return {"message": f"Tag '{tag}' doesn't exist"}
    else:
        data_dict["tags"] = []

    if "clusters" in data_dict:
        for cluster in data_dict["clusters"]:
            if not CommonModel.check_cluster(cluster):
                return {"message": f"Cluster '{cluster}' doesn't exist"}
    else:
        data_dict["clusters"] = []

    if not isCase:
        if "url" not in data_dict or not data_dict["url"]:
            data_dict["url"] = ""

        if "connectors" in data_dict:
            for connector in data_dict["connectors"]:
                if not CommonModel.check_connector(connector):
                    return {"message": f"Connector '{connector}' doesn't exist"}
        else:
            data_dict["connectors"] = []

    return data_dict



def common_verif(data_dict, case_task):
    if "description" not in data_dict or not data_dict["description"]:
        data_dict["description"] = case_task.description

    if "deadline_date" in data_dict:
        try:
            data_dict["deadline_date"] = datetime.strptime(data_dict["deadline_date"], '%Y-%m-%d') 
        except:
            return {"message": "date bad format"}
    elif case_task.deadline:
        data_dict["deadline_date"] = case_task.deadline.strftime('%Y-%m-%d')
    else:
        data_dict["deadline_date"] = ""

    if "deadline_time" in data_dict:
        try:
            data_dict["deadline_time"] = datetime.strptime(data_dict["deadline_time"], '%H-%M') 
        except:
            return {"message": "time bad format"}
    elif case_task.deadline:
        data_dict["deadline_time"] = case_task.deadline.strftime('%H-%M')
    else:
        data_dict["deadline_time"] = ""

    if "tags" in data_dict:
        for tag in data_dict["tags"]:
            if not check_tag(tag):
                return {"message": f"Tag '{tag}' doesn't exist"}
    elif case_task.to_json()["tags"]:
        data_dict["tags"] = case_task.to_json()["tags"]
    else:
        data_dict["tags"] = []

    if "clusters" in data_dict:
        for cluster in data_dict["clusters"]:
            if not CommonModel.check_cluster(cluster):
                return {"message": f"Cluster '{cluster}' doesn't exist"}
    elif case_task.to_json()["clusters"]:
        data_dict["clusters"] = case_task.to_json()["clusters"]
    else:
        data_dict["clusters"] = []
    
    return data_dict


def verif_edit_case(data_dict, case_id):
    case = CommonModel.get_case(case_id)
    if "title" not in data_dict or data_dict["title"] == case.title or not data_dict["title"]:
        data_dict["title"] = case.title
    elif Case.query.filter_by(title=data_dict["title"]).first():
        return {"message": "Title already exist"}

    data_dict = common_verif(data_dict, case)

    return data_dict


def verif_edit_task(data_dict, task_id):
    task = CommonModel.get_task(task_id)
    if "title" not in data_dict or data_dict["title"] == task.title or not data_dict["title"]:
        data_dict["title"] = task.title

    data_dict = common_verif(data_dict, task)

    if "url" not in data_dict or not data_dict["url"]:
        data_dict["url"] = task.url

    if "connectors" in data_dict:
        for connector in data_dict["connectors"]:
            if not CommonModel.check_connector(connector):
                return {"message": f"connector '{connector}' doesn't exist"}
    elif task.to_json()["connectors"]:
        data_dict["connectors"] = task.to_json()["connectors"]
    else:
        data_dict["connectors"] = []

    return data_dict