import type { ApiResponse } from '$shared/types/common';

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

async function request<T>(
    url: string,
    options?: RequestInit,
): Promise<ApiResponse<T>> {
    const response = await fetch(url, {
        headers: {
            'Content-Type': 'application/json',
            ...options?.headers,
        },
        ...options,
    });

    if (!response.ok) {
        throw new ApiError(
            response.status,
            `Request failed: ${response.statusText}`,
            response,
        );
    }

    const data = await response.json() as T;

    return {
        data,
        status: response.status,
    };
}

export const api = {
    get: <T>(url: string, options?: RequestInit) => request<T>(url, { ...options, method: 'GET' }),

    post: <T>(url: string, body?: unknown, options?: RequestInit) =>
        request<T>(url, {
            ...options,
            method: 'POST',
            body: JSON.stringify(body),
        }),

    put: <T>(url: string, body?: unknown, options?: RequestInit) =>
        request<T>(url, {
            ...options,
            method: 'PUT',
            body: JSON.stringify(body),
        }),

    delete: <T>(url: string, options?: RequestInit) =>
        request<T>(url, { ...options, method: 'DELETE' }),
};