export interface BypassAccountResponse {
    id: number;
    username: string;
    displayName: string;
    organization: string | null;
    email: string | null;
    phone: string | null;
    status: string;
    accessStartDate: string | null;
    accessEndDate: string | null;
    createdAt: string;
    updatedAt: string;
    plainPassword: string | null;
}

export interface BypassAccountUpdateRequest {
    displayName?: string;
    organization?: string;
    email?: string;
    phone?: string;
    status?: string;
    accessStartDate?: string;
    accessEndDate?: string;
}

export interface BypassRequestResponse {
    id: number;
    applicantName: string;
    organization: string | null;
    purpose: string | null;
    email: string | null;
    phone: string | null;
    requestedAccessPeriod: string | null;
    status: string;
    reviewedBy: string | null;
    reviewedAt: string | null;
    rejectReason: string | null;
    accountId: number | null;
    accountUsername: string | null;
    createdAt: string;
    updatedAt: string;
}

export interface BypassRequestSubmitRequest {
    applicantName: string;
    organization: string;
    purpose: string;
    email: string;
    phone: string;
    requestedAccessPeriod: string;
}

export interface BypassRequestReviewRequest {
    reviewedBy: string;
    rejectReason?: string;
    accessStartDate?: string;
    accessEndDate?: string;
}

export interface PageResponse<T> {
    content: T[];
    totalElements: number;
    totalPages: number;
    number: number;
    size: number;
}

interface ApiResponse<T> {
    success: boolean;
    message: string;
    data: T;
}

// BASE URL
const BASE = '/snp-api/api/bypass-account';

// 헬퍼 함수 (bypassApi.ts 패턴과 동일)
async function fetchJson<T>(url: string): Promise<T> {
    const res = await fetch(url);
    if (!res.ok) throw new Error(`API Error: ${res.status} ${res.statusText}`);
    return res.json();
}

async function postJson<T>(url: string, body?: unknown): Promise<T> {
    const res = await fetch(url, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: body != null ? JSON.stringify(body) : undefined,
    });
    if (!res.ok) throw new Error(`API Error: ${res.status} ${res.statusText}`);
    return res.json();
}

async function putJson<T>(url: string, body?: unknown): Promise<T> {
    const res = await fetch(url, {
        method: 'PUT',
        headers: { 'Content-Type': 'application/json' },
        body: body != null ? JSON.stringify(body) : undefined,
    });
    if (!res.ok) throw new Error(`API Error: ${res.status} ${res.statusText}`);
    return res.json();
}

async function deleteJson<T>(url: string): Promise<T> {
    const res = await fetch(url, { method: 'DELETE' });
    if (!res.ok) throw new Error(`API Error: ${res.status} ${res.statusText}`);
    return res.json();
}

export const bypassAccountApi = {
    // Accounts
    getAccounts: (status?: string, page = 0, size = 20) => {
        const params = new URLSearchParams({ page: String(page), size: String(size) });
        if (status) params.set('status', status);
        return fetchJson<ApiResponse<PageResponse<BypassAccountResponse>>>(`${BASE}/accounts?${params}`);
    },
    getAccount: (id: number) =>
        fetchJson<ApiResponse<BypassAccountResponse>>(`${BASE}/accounts/${id}`),
    updateAccount: (id: number, data: BypassAccountUpdateRequest) =>
        putJson<ApiResponse<BypassAccountResponse>>(`${BASE}/accounts/${id}`, data),
    deleteAccount: (id: number) =>
        deleteJson<ApiResponse<void>>(`${BASE}/accounts/${id}`),
    resetPassword: (id: number) =>
        postJson<ApiResponse<BypassAccountResponse>>(`${BASE}/accounts/${id}/reset-password`, {}),

    // Requests
    submitRequest: (data: BypassRequestSubmitRequest) =>
        postJson<ApiResponse<BypassRequestResponse>>(`${BASE}/requests`, data),
    getRequests: (status?: string, page = 0, size = 20) => {
        const params = new URLSearchParams({ page: String(page), size: String(size) });
        if (status) params.set('status', status);
        return fetchJson<ApiResponse<PageResponse<BypassRequestResponse>>>(`${BASE}/requests?${params}`);
    },
    approveRequest: (id: number, data: BypassRequestReviewRequest) =>
        postJson<ApiResponse<BypassAccountResponse>>(`${BASE}/requests/${id}/approve`, data),
    rejectRequest: (id: number, data: BypassRequestReviewRequest) =>
        postJson<ApiResponse<BypassRequestResponse>>(`${BASE}/requests/${id}/reject`, data),
};