import { useQuery } from "@tanstack/react-query";
import { getAlbum, type Artist } from "api/api";
import { useEffect, useState } from "react"

interface Props {
    id: number
    type: string
}

export default function SetPrimaryArtist({ id, type }: Props) {
    const [err, setErr] = useState('')
    const [primary, setPrimary] = useState<Artist>()
    const [success, setSuccess] = useState('')
            
    const { isPending, isError, data, error } = useQuery({ 
        queryKey: [
            'get-artists-'+type.toLowerCase(), 
            {
                id: id
            },
        ], 
        queryFn: () => {
            return fetch('/apis/web/v1/artists?'+type.toLowerCase()+'_id='+id).then(r => r.json()) as Promise<Artist[]>;
        },
    });

    useEffect(() => {
        if (data) {
            for (let a of data) {
                if (a.is_primary) {
                    setPrimary(a)
                    break
                }
            }
        }
    }, [data]) 

    if (isError) {
        return (
            <p className="error">Error: {error.message}</p>
        )
    }
    if (isPending) {
        return (
            <p>Loading...</p>
        )
    }

    const updatePrimary = (artist: number, val: boolean) => {
        setErr('');
        setSuccess('');
        fetch(`/apis/web/v1/artists/primary?artist_id=${artist}&${type.toLowerCase()}_id=${id}&is_primary=${val}`, { 
            method: 'POST',
            headers: {
                "Content-Type": "application/x-www-form-urlencoded"
            }
        })
            .then(r => {
                if (r.ok) {
                    setSuccess('successfully updated primary artists');
                } else {
                    r.json().then(r => setErr(r.error));
                }
            });
    }
    
    return (
        <div className="w-full">
            <h2>Set Primary Artist</h2>
            <div className="flex flex-col gap-4">
                <select
                    name="mark-various-artists"
                    id="mark-various-artists"
                    className="w-60 px-3 py-2 rounded-md"
                    value={primary?.name || ""}
                    onChange={(e) => {
                        for (let a of data) {
                            if (a.name === e.target.value) {
                                setPrimary(a);
                                updatePrimary(a.id, true);
                            }
                        }
                    }}
                >
                    <option value="" disabled>
                        Select an artist
                    </option>
                    {data.map((a) => (
                        <option key={a.id} value={a.name}>
                            {a.name}
                        </option>
                    ))}
                </select>
                {err && <p className="error">{err}</p>}
                {success && <p className="success">{success}</p>}
            </div>
        </div>
    );
}