// API Response structure from /api/user/me
export interface UserProfileResponse {
    id: number;
    username: string;
    email: string;
    email_verified_at: string | null;
    updated_at: string;
    created_at: string;
    role: {
        code: string;
        name: {
            en: string;
            th: string;
        };
    };
    profile: {
        prefix: {
            en: string;
            th: string;
        };
        first_name: string;
        last_name: string;
        avatar_url: string | null;
        birth_date: string | null;
        phone: string | null;
    };
}

export interface ApiResponse<T> {
    code: number;
    message: string;
    data: T;
}

// Request body for PUT /api/user/me
export interface UpdateProfileRequest {
    prefix?: {
        en: string;
        th: string;
    };
    first_name: string;
    last_name: string;
    phone?: string | null;
    avatar_url?: string | null;
    birth_date?: string | null;
}

// Helper function to get auth token from cookie
const getAuthToken = (): string => {
    const tokenCookie = useCookie('token');
    return tokenCookie.value || '';
};

export const userService = {
    async getProfile(): Promise<UserProfileResponse> {
        const config = useRuntimeConfig();
        const token = getAuthToken();

        const response = await $fetch<UserProfileResponse>('/api/user/me', {
            baseURL: config.public.apiBaseUrl as string,
            headers: {
                Authorization: `Bearer ${token}`
            }
        });

        return response;
    },

    async updateProfile(data: UpdateProfileRequest): Promise<ApiResponse<UserProfileResponse>> {
        const config = useRuntimeConfig();
        const token = getAuthToken();

        const response = await $fetch<ApiResponse<UserProfileResponse>>('/api/user/me', {
            method: 'PUT',
            baseURL: config.public.apiBaseUrl as string,
            headers: {
                Authorization: `Bearer ${token}`
            },
            body: data
        });

        return response;
    },

    async changePassword(oldPassword: string, newPassword: string): Promise<ApiResponse<null>> {
        const config = useRuntimeConfig();
        const token = getAuthToken();

        const response = await $fetch<ApiResponse<null>>('/api/user/change-password', {
            method: 'POST',
            baseURL: config.public.apiBaseUrl as string,
            headers: {
                Authorization: `Bearer ${token}`
            },
            body: {
                oldPassword,
                newPassword
            }
        });

        return response;
    },

    async uploadAvatar(file: File): Promise<ApiResponse<{ avatar_url: string; id: number }>> {
        const config = useRuntimeConfig();
        const token = getAuthToken();
        const formData = new FormData();
        formData.append('file', file);

        const response = await $fetch<ApiResponse<{ avatar_url: string; id: number }>>('/api/user/upload-avatar', {
            method: 'POST',
            baseURL: config.public.apiBaseUrl as string,
            headers: {
                Authorization: `Bearer ${token}`
            },
            body: formData
        });

        return response;
    }
};