import { z } from "zod";

export interface Song {
    title: string;
    artist: string;
    apiProvider: string;
    thumbnailUrl: string;
    link: string;
}
const songLinkShape = z.object({
    userCountry: z.string(),
    entitiesByUniqueId: z.record(
        z.string(),
        z.object({
            id: z.string(),
            type: z.string(),
            title: z.string(),
            thumbnailUrl: z.string().optional(),
            apiProvider: z.string(),
            artistName: z.string(),
        })
    ),
    linksByPlatform: z.record(
        z.string(), 
        z.object({
            country: z.string(),
            url: z.string().url(),
            entityUniqueId: z.string(),
        }))
});
//i hate this
export const preferredProviders = [
    "spotify",
    "deezer",
    "youtubeMusic",
    "tidal",
    "itunes"
];

export function getSongOnPreferredProvider(json: unknown, link: string): Song | null {
    const maybesong = songLinkShape.safeParse(json);
    if (!maybesong.success) {
        return null;
    }
    const song = maybesong.data;
    for (const platform of preferredProviders) {
        if (!song.linksByPlatform[platform]) {
            console.log(`couldnt find song on ${platform}`)
            continue
        }
        const entityId = song.linksByPlatform[platform].entityUniqueId;
        const songInfo = song.entitiesByUniqueId[entityId]

        return {
            title: songInfo.title,
            artist: songInfo.artistName,
            apiProvider: songInfo.apiProvider,
            thumbnailUrl: songInfo.thumbnailUrl!,
            link: song.linksByPlatform[platform].url,
        }
    }
    return null
}


export function kyzaify(input: string): string {
    //im gonna write this as shittily as possible just because.
    if (input === "youtube") {
        return "YouTube";
    } else if (input === "youtubeMusic") {
        return "YouTube Music";
    } else if (input === "itunes") {
        return "iTunes";
    } else if (input === "soundcloud") {
        return "SoundCloud";
    }
    if (input.length === 0) return input;

    let result = input.charAt(0).toUpperCase();

    for (let i = 1; i < input.length; i++) {
        const char = input.charAt(i);

        if (char === char.toUpperCase()) {
            result += ' ' + char;
        } else {
            result += char;
        }
    }

    return result;
}