export interface LoginCredentials {
    email: string;
    password: string;
}

export interface RegisterData {
    firstname: string;
    lastname: string;
    email: string;
    dob: string;
    password: string;
    password_confirmation: string;
    phone: string;
    gender: 'male' | 'female' | 'other';
    image?: File;
}

export interface ResetPasswordData {
    token: string;
    password: string;
    password_confirmation: string;
}

export interface User {
    id: number;
    firstname: string;
    lastname: string;
    username?: string | null;
    email: string;
    phone: string;
    dob: string;
    gender: string;
    image?: string | null;
    role?: string | Role | null;
    roles?: Array<string | Role> | null;
    user_type?: string | null;
    account_type?: string | null;
    type?: string | null;
    is_admin?: boolean | number | string | null;
    email_verified_at?: string;
    email_verifed_at?: string;
    created_at: string;
    updated_at: string;
}

export interface ApiResponse<T = unknown> {
    status?: boolean;
    success?: boolean;
    message?: string;
    data?: T;
}

export interface AuthResponse {
    status?: boolean;
    success?: boolean;
    message: string;
    data?: {
        user: User;
        token: string;
    };
}

export interface ForgotPasswordResponse {
    status?: boolean;
    success?: boolean;
    message: string;
}

export interface VerifyCodeResponse {
    status?: boolean;
    success?: boolean;
    message: string;
    data?: {
        token: string;
    };
}

export interface GoogleRedirectResponse {
    status?: boolean;
    success?: boolean;
    url: string;
}

export interface Size {
    id: number;
    name: string;
    slug?: string;
}

export interface Role {
    id: number;
    name: string;
    slug?: string;
}

export interface ShippingMethod {
    id: number;
    name: string;
    price: number;
    business_days?: number;
    code?: string;
}

export interface Category {
    id: number;
    name: string;
    slug: string;
    image?: string;
    description?: string;
}

export interface ProductImage {
    id: number;
    image_path: string;
    image_url: string;
    is_featured: number;
    alt_text: string;
    created_at: string;
}

export interface ProductVariation {
    id: number;
    product_id?: number;
    size_id?: number;
    size?: Size;
    sku?: string;
    quantity_per_pack?: number;
    stock?: number;
    price?: number;
    absorbency_level?: string;
    is_active?: boolean | number;
    price_per_piece?: number;
    total_pieces?: number;
    created_at?: string;
    updated_at?: string;
}

export interface Product {
    id: number;
    category_id?: number;
    name: string;
    slug: string;
    description: string;
    sku?: string;
    price?: number;
    images?: ProductImage[] | string[];
    featured_image?: ProductImage | string | null;
    stock?: number;
    absorbency?: string;
    rating?: number;
    reviews_count?: number;
    is_active?: number;
    category?: Category;
    variations?: ProductVariation[];
    created_at?: string;
    updated_at?: string;
}

export interface CartItemPayload {
    variation_id: number;
    quantity: number;
}

export interface CartApiItem {
    variation_id: number;
    product_id: number;
    product_name: string;
    product_slug: string;
    sku: string;
    size: string;
    size_code: string;
    absorbency_level: string;
    price: number;
    quantity_per_pack: number;
    quantity: number;
    subtotal: number;
    stock: number;
    image: string;
    added_at: string;
}

export interface CartSummary {
    total_items: number;
    total_units: number;
    subtotal: number;
}

export interface CartResponseData {
    cart: CartApiItem[];
    summary: CartSummary;
}

export interface CartItem {
    id?: number;
    variation_id: number;
    quantity: number;
    product?: Product;
}

export interface CheckoutData {
    shipping_method_id: string | number;
    first_name: string;
    last_name: string;
    email: string;
    phone: string;
    street_address: string;
    city: string;
    state: string;
    zip_code: string;
    notes?: string;
}

export interface OrderItem {
    product_id: number;
    quantity: number;
    price: number;
    size?: string;
}

export interface OrderData {
    firstname: string;
    lastname: string;
    email: string;
    phone: string;
    address: string;
    city: string;
    state: string;
    zip_code: string;
    shipping_method: string | number;
    payment_method: string;
    items: OrderItem[];
    total: number;
}

export interface Order {
    id?: number;
    order_number?: string;
    status?: string;
    total?: number;
    items?: OrderItem[];
    [key: string]: unknown;
}

export interface OrderResponse {
    status?: boolean;
    success?: boolean;
    message: string;
    data?: {
        order_id?: number;
        order_number?: string;
        [key: string]: unknown;
    };
}

export interface FaqImage {
    id: number;
    image_path?: string;
    image_url?: string;
}

export interface Faq {
    id: number;
    title: string;
    description: string;
    is_active?: number | boolean;
    images?: Array<FaqImage | string>;
    created_at?: string;
    updated_at?: string;
}

export interface FaqInput {
    title: string;
    description: string;
    is_active?: boolean | number;
    images?: File[];
}

/** A single KPI value with an optional period-over-period change. */
export interface DashboardKpi {
    value: number;
    change: number | null;
}

/** One bucket of the order-status breakdown. */
export interface DashboardOrderStatus {
    status?: string;
    count?: number;
    total?: number;
}

/**
 * Admin dashboard payload (GET /api/admin/dashboard). The `revenue_trend`
 * and `top_products` arrays are read defensively since their item shape is
 * not documented and they are empty on a fresh store.
 */
export interface DashboardData {
    kpis?: {
        total_revenue?: DashboardKpi;
        total_orders?: DashboardKpi;
        total_customers?: DashboardKpi;
        avg_order_value?: DashboardKpi;
    };
    revenue_trend?: Array<Record<string, unknown>>;
    order_status?: DashboardOrderStatus[];
    top_products?: Array<Record<string, unknown>>;
    [key: string]: unknown;
}