// All backend calls go through this module. Components and routes import
// the typed helpers below — they do not call fetch directly.

const BASE = (typeof import.meta !== 'undefined' && import.meta.env?.VITE_API_BASE) || '/api';

export class ApiError extends Error {
    constructor(
        public readonly status: number,
        message: string
    ) {
        super(message);
        this.name = 'ApiError';
    }
}

export async function request<T>(path: string, init?: RequestInit): Promise<T> {
    const res = await fetch(`${BASE}${path}`, init);
    if (!res.ok) {
        const text = await res.text().catch(() => '');
        throw new ApiError(res.status, text || `${res.status} ${res.statusText}`);
    }
    return (await res.json()) as T;
}

export type Manga = {
    id: string;
    title: string;
    author: string | null;
    description: string | null;
    cover_image_path: string | null;
    created_at: string;
    updated_at: string;
};