import axios, { AxiosError } from 'axios';
import { License } from '@/types';
import { toast } from 'vue-sonner';

const API_URL = '/api/licenses';

export default {
    /**
     * Fetches all licenses
     * @returns Promise<License[] | null>
     */
    async getLicenses(): Promise<License[] | null> {
        try {
            const response = await axios.get(API_URL);
            return response.data;
        } catch (error) {
            toast.error('Fehler beim Abrufen der Lizenzen', { description: (error as AxiosError).message });
            console.error(error);
            return null;
        }
    },

    /**
     * Fetches a single license by ID
     * @param id - The ID of the license to fetch
     * @returns Promise<License | null>
     */
    async getLicense(id: number): Promise<License | null> {
        try {
            const response = await axios.get(`${API_URL}/${id}`);
            return response.data;
        } catch (error) {
            toast.error('Fehler beim Abrufen der Lizenz', { description: (error as AxiosError).message });
            console.error(error);
            return null;
        }
    },

    /**
     * Creates a new license
     * @param license - The license data to create
     * @returns Promise<License | null>
     */
    async createLicense(license: License): Promise<License | null> {
        try {
            const response = await axios.post(API_URL, license);
            return response.data;
        } catch (error) {
            toast.error('Fehler beim Erstellen der Lizenz', { description: (error as AxiosError).message });
            console.error(error);
            return null;
        }
    },

    /**
     * Updates an existing license
     * @param license - The license data to update
     * @returns Promise<License | null>
     */
    async updateLicense(license: License): Promise<License | null> {
        try {
            const response = await axios.put(`${API_URL}/${license.id}`, license);
            return response.data;
        } catch (error) {
            toast.error('Fehler beim Aktualisieren der Lizenz', { description: (error as AxiosError).message });
            console.error(error);
            return null;
        }
    },

    /**
     * Deletes a license by ID
     * @param id - The ID of the license to delete
     * @returns Promise<boolean>
     */
    async deleteLicense(id: number): Promise<boolean> {
        try {
            await axios.delete(`${API_URL}/${id}`);
            return true;
        } catch (error) {
            toast.error('Fehler beim Löschen der Lizenz', { description: (error as AxiosError).message });
            console.error(error);
            return false;
        }
    },

    /**
     * Downloads a license as a JSON file
     * @param id - The ID of the license to download
     * @returns Promise<void>
     */
    async downloadLicense(id: number): Promise<void> {
        try {
            const response = await axios.get(`/licenses/download/${id}`, {
                responseType: 'blob',
            });

            const url = window.URL.createObjectURL(new Blob([response.data]));
            const link = document.createElement('a');
            link.href = url;
            link.setAttribute('download', `license_${id}.json`);
            document.body.appendChild(link);
            link.click();
            link.remove();
        } catch (error) {
            toast.error('Fehler beim Herunterladen der Lizenz', { description: (error as AxiosError).message });
            console.error(error);
        }
    },

    /**
     * Validates a license
     * @param licenseId - The ID of the license to validate
     * @returns Promise<{ is_valid: boolean, is_signature_valid: boolean, is_expired: boolean } | null>
     */
    async validateLicense(licenseId: number): Promise<{ is_valid: boolean, is_signature_valid: boolean, is_expired: boolean } | null> {
        try {
            const response = await axios.post('/api/licenses/validate', { license_id: licenseId });
            return response.data;
        } catch (error) {
            toast.error('Fehler beim Validieren der Lizenz', { description: (error as AxiosError).message });
            console.error(error);
            return null;
        }
    }
};