from http import HTTPStatus

from fastapi.param_functions import Query
from fastapi.params import Depends
from lnurl.exceptions import InvalidUrl as LnurlInvalidUrl  # type: ignore
from starlette.exceptions import HTTPException
from starlette.requests import Request

from lnbits.core.crud import get_user
from lnbits.decorators import WalletTypeInfo, get_key_type, require_admin_key

from . import withdraw_ext
from .crud import (
    create_withdraw_link,
    delete_withdraw_link,
    get_hash_check,
    get_withdraw_link,
    get_withdraw_links,
    update_withdraw_link,
)
from .models import CreateWithdrawData


@withdraw_ext.get("/api/v1/links", status_code=HTTPStatus.OK)
async def api_links(
    req: Request,
    wallet: WalletTypeInfo = Depends(get_key_type),
    all_wallets: bool = Query(False),
):
    wallet_ids = [wallet.wallet.id]

    if all_wallets:
        wallet_ids = (await get_user(wallet.wallet.user)).wallet_ids

    try:
        return [
            {**link.dict(), **{"lnurl": link.lnurl(req)}}
            for link in await get_withdraw_links(wallet_ids)
        ]

    except LnurlInvalidUrl:
        raise HTTPException(
            status_code=HTTPStatus.UPGRADE_REQUIRED,
            detail="LNURLs need to be delivered over a publically accessible `https` domain or Tor.",
        )


@withdraw_ext.get("/api/v1/links/{link_id}", status_code=HTTPStatus.OK)
async def api_link_retrieve(
    link_id, request: Request, wallet: WalletTypeInfo = Depends(get_key_type)
):
    link = await get_withdraw_link(link_id, 0)

    if not link:
        raise HTTPException(
            detail="Withdraw link does not exist.", status_code=HTTPStatus.NOT_FOUND
        )

    if link.wallet != wallet.wallet.id:
        raise HTTPException(
            detail="Not your withdraw link.", status_code=HTTPStatus.FORBIDDEN
        )
    return {**link, **{"lnurl": link.lnurl(request)}}


@withdraw_ext.post("/api/v1/links", status_code=HTTPStatus.CREATED)
@withdraw_ext.put("/api/v1/links/{link_id}", status_code=HTTPStatus.OK)
async def api_link_create_or_update(
    req: Request,
    data: CreateWithdrawData,
    link_id: str = None,
    wallet: WalletTypeInfo = Depends(require_admin_key),
):
    if data.max_withdrawable < data.min_withdrawable:
        raise HTTPException(
            detail="`max_withdrawable` needs to be at least `min_withdrawable`.",
            status_code=HTTPStatus.BAD_REQUEST,
        )

    usescsv = ""
    for i in range(data.uses):
        if data.is_unique:
            usescsv += "," + str(i + 1)
        else:
            usescsv += "," + str(1)
    usescsv = usescsv[1:]

    if link_id:
        link = await get_withdraw_link(link_id, 0)
        if not link:
            raise HTTPException(
                detail="Withdraw link does not exist.", status_code=HTTPStatus.NOT_FOUND
            )
        if link.wallet != wallet.wallet.id:
            raise HTTPException(
                detail="Not your withdraw link.", status_code=HTTPStatus.FORBIDDEN
            )
        link = await update_withdraw_link(
            link_id, **data.dict(), usescsv=usescsv, used=0
        )
    else:
        link = await create_withdraw_link(
            wallet_id=wallet.wallet.id, data=data, usescsv=usescsv
        )
    return {**link.dict(), **{"lnurl": link.lnurl(req)}}


@withdraw_ext.delete("/api/v1/links/{link_id}")
async def api_link_delete(link_id, wallet: WalletTypeInfo = Depends(require_admin_key)):
    link = await get_withdraw_link(link_id)

    if not link:
        raise HTTPException(
            detail="Withdraw link does not exist.", status_code=HTTPStatus.NOT_FOUND
        )

    if link.wallet != wallet.wallet.id:
        raise HTTPException(
            detail="Not your withdraw link.", status_code=HTTPStatus.FORBIDDEN
        )

    await delete_withdraw_link(link_id)
    raise HTTPException(status_code=HTTPStatus.NO_CONTENT)


@withdraw_ext.get("/api/v1/links/{the_hash}/{lnurl_id}", status_code=HTTPStatus.OK)
async def api_hash_retrieve(
    the_hash, lnurl_id, wallet: WalletTypeInfo = Depends(get_key_type)
):
    hashCheck = await get_hash_check(the_hash, lnurl_id)
    return hashCheck