from datetime import datetime
from fastapi import APIRouter, Depends, HTTPException, Response
from typing import Optional
import logging
import pydantic
from pandas import DataFrame

from ..db_engine import Reward, model_to_dict, fn, DoesNotExist
from ..dependencies import oauth2_scheme, valid_token


router = APIRouter(prefix="/api/v2/rewards", tags=["rewards"])


class RewardModel(pydantic.BaseModel):
    name: str
    season: int
    week: int
    team_id: int
    created: Optional[int] = int(datetime.timestamp(datetime.now()) * 1000)


@router.get("")
async def get_rewards(
    name: Optional[str] = None,
    in_name: Optional[str] = None,
    team_id: Optional[int] = None,
    season: Optional[int] = None,
    week: Optional[int] = None,
    created_after: Optional[int] = None,
    flat: Optional[bool] = False,
    csv: Optional[bool] = None,
    limit: Optional[int] = 100,
):
    all_rewards = Reward.select().order_by(Reward.id)

    if name is not None:
        all_rewards = all_rewards.where(fn.Lower(Reward.name) == name.lower())
    if team_id is not None:
        all_rewards = all_rewards.where(Reward.team_id == team_id)
    if created_after is not None:
        # Convert milliseconds timestamp to datetime for PostgreSQL comparison
        created_after_dt = datetime.fromtimestamp(created_after / 1000)
        all_rewards = all_rewards.where(Reward.created >= created_after_dt)
    if in_name is not None:
        all_rewards = all_rewards.where(fn.Lower(Reward.name).contains(in_name.lower()))
    if season is not None:
        all_rewards = all_rewards.where(Reward.season == season)
    if week is not None:
        all_rewards = all_rewards.where(Reward.week == week)

    total_count = all_rewards.count()
    if total_count == 0:
        raise HTTPException(status_code=404, detail="No rewards found")

    limit = max(0, min(limit, 500))
    all_rewards = all_rewards.limit(limit)

    if csv:
        data_list = [["id", "name", "team", "daily", "created"]]
        for line in all_rewards:
            data_list.append(
                [line.id, line.name, line.team.id, line.daily, line.created]
            )
        return_val = DataFrame(data_list).to_csv(header=False, index=False)

        return Response(content=return_val, media_type="text/csv")

    else:
        return_val = {"count": total_count, "rewards": []}
        for x in all_rewards:
            return_val["rewards"].append(model_to_dict(x, recurse=not flat))

        return return_val


@router.get("/{reward_id}")
async def get_one_reward(reward_id, csv: Optional[bool] = False):
    try:
        this_reward = Reward.get_by_id(reward_id)
    except DoesNotExist:
        raise HTTPException(
            status_code=404, detail=f"No reward found with id {reward_id}"
        )

    if csv:
        data_list = [
            ["id", "name", "card_count", "description"],
            [
                this_reward.id,
                this_reward.name,
                this_reward.team.id,
                this_reward.daily,
                this_reward.created,
            ],
        ]
        return_val = DataFrame(data_list).to_csv(header=False, index=False)

        return Response(content=return_val, media_type="text/csv")

    else:
        return_val = model_to_dict(this_reward)
        return return_val


@router.post("")
async def post_rewards(reward: RewardModel, token: str = Depends(oauth2_scheme)):
    if not valid_token(token):
        logging.warning("Bad Token: [REDACTED]")
        raise HTTPException(
            status_code=401,
            detail="You are not authorized to post rewards. This event has been logged.",
        )

    reward_data = reward.dict()
    # Convert milliseconds timestamp to datetime for PostgreSQL
    if reward_data.get("created"):
        reward_data["created"] = datetime.fromtimestamp(reward_data["created"] / 1000)
    this_reward = Reward(**reward_data)

    saved = this_reward.save()
    if saved == 1:
        return_val = model_to_dict(this_reward)
        return return_val
    else:
        raise HTTPException(
            status_code=418,
            detail="Well slap my ass and call me a teapot; I could not save that cardset",
        )


@router.patch("/{reward_id}")
async def patch_reward(
    reward_id,
    name: Optional[str] = None,
    team_id: Optional[int] = None,
    created: Optional[int] = None,
    token: str = Depends(oauth2_scheme),
):
    if not valid_token(token):
        logging.warning("Bad Token: [REDACTED]")
        raise HTTPException(
            status_code=401,
            detail="You are not authorized to patch rewards. This event has been logged.",
        )
    try:
        this_reward = Reward.get_by_id(reward_id)
    except DoesNotExist:
        raise HTTPException(
            status_code=404, detail=f"No reward found with id {reward_id}"
        )

    if name is not None:
        this_reward.name = name
    if team_id is not None:
        this_reward.team_id = team_id
    if created is not None:
        # Convert milliseconds timestamp to datetime for PostgreSQL
        this_reward.created = datetime.fromtimestamp(created / 1000)

    if this_reward.save() == 1:
        return_val = model_to_dict(this_reward)
        return return_val
    else:
        raise HTTPException(
            status_code=418,
            detail="Well slap my ass and call me a teapot; I could not save that rarity",
        )


@router.delete("/{reward_id}")
async def delete_reward(reward_id, token: str = Depends(oauth2_scheme)):
    if not valid_token(token):
        logging.warning("Bad Token: [REDACTED]")
        raise HTTPException(
            status_code=401,
            detail="You are not authorized to delete rewards. This event has been logged.",
        )
    try:
        this_reward = Reward.get_by_id(reward_id)
    except DoesNotExist:
        raise HTTPException(
            status_code=404, detail=f"No reward found with id {reward_id}"
        )

    count = this_reward.delete_instance()

    if count == 1:
        raise HTTPException(
            status_code=200, detail=f"Reward {reward_id} has been deleted"
        )
    else:
        raise HTTPException(
            status_code=500, detail=f"Reward {reward_id} was not deleted"
        )