Frontend/src/services/StudentService.js - master - ingvion/PlanerService

Frontend/src/services/StudentService.js
109 строк3 KB
lenadekart
Доработка roadmap
23 ноя 2025, 08:24
23 ноя 2025, 08:248359cca
class StudentService {
    constructor(baseUrl = '/api/v1') {
        this.baseUrl = baseUrl;
        this.token = localStorage.getItem('student_token');
    }

    setToken(token) {
        this.token = token;
        localStorage.setItem('student_token', token);
    }

    getToken() {
        return this.token || localStorage.getItem('student_token');
    }

    logout() {
        this.token = null;
        localStorage.removeItem('student_token');
    }

    async request(endpoint, options = {}) {
        const url = `${this.baseUrl}${endpoint}`;
        const headers = {
            'Content-Type': 'application/json',
            ...options.headers,
        };

        if (this.token) {
            headers['Authorization'] = `Bearer ${this.token}`;
        }

        const response = await fetch(url, { ...options, headers });

        if (!response.ok) {
            // Пытаемся получить детали ошибки из тела ответа
            let errorMessage = `HTTP error! status: ${response.status}`;
            try {
                const errorData = await response.json();
                if (errorData.detail) {
                    errorMessage = errorData.detail;
                }
            } catch (e) {
                // Если не удалось прочитать JSON, используем стандартное сообщение
            }
            
            const error = new Error(errorMessage);
            error.status = response.status;
            throw error;
        }

        const data = await response.json();
        return data;
    }

    // Student routes
    async getProfile() {
        return this.request('/student/profile');
    }

    async getSpecializations(studentId) {
        return this.request(`/students/${studentId}/specializations`);
    }

    async setSpecialization(studentId, specializationId) {
        return this.request(`/students/${studentId}/specialization`, {
            method: 'POST',
            body: JSON.stringify({ specialization_id: specializationId })
        });
    }

    async getRecommendations(studentId) {
        return this.request(`/students/${studentId}/recommendations`);
    }

    async getCourses(directionId) {
        return this.request(`/admin/directions/${directionId}/courses`);
    }

    async addCourseToPlan(courseId) {
        return this.request(`/student/courses/${courseId}/add`, {
            method: 'POST'
        });
    }

    async getRoadmap(retries = 2, retryDelay = 3000) {
        try {
            return await this.request('/student/roadmap');
        } catch (error) {
            // Если это rate limiting (429, 503) и остались попытки
            if ((error.status === 429 || error.status === 503) && retries > 0) {
                console.log(`Roadmap: Rate limit, retrying in ${retryDelay}ms... (${retries} retries left)`);
                await new Promise(resolve => setTimeout(resolve, retryDelay));
                // Увеличиваем задержку для следующей попытки
                return this.getRoadmap(retries - 1, retryDelay + 2000);
            }
            throw error;
        }
    }

    async getAllDirections() {
        return this.request('/directions');
    }

    async getAllCourses() {
        return this.request('/courses');
    }
}

export default new StudentService();