export interface Item {
    id?: number;
    [key: string]: any;
}

// Helper function to check if an object has any meaningful values
export function hasValues(obj: any): boolean {
    if (!obj || typeof obj !== 'object') return false;
    return Object.values(obj).some(
        (val) =>
            val !== undefined &&
            val !== null &&
            val !== '' &&
            !(typeof val === 'object' && !hasValues(val))
    );
}

// Clean nested data before sending to API
export function cleanLineData(line: any) {
    const cleaned: any = { ...line };

    // Helper function to convert to number or undefined
    const toNumberOrUndefined = (value: any): number | undefined => {
        if (value === undefined || value === null || value === '') {
            return undefined;
        }
        const numValue = Number(value);
        return !isNaN(numValue) && isFinite(numValue) ? numValue : undefined;
    };

    // Convert integer fields
    cleaned.part_number = toNumberOrUndefined(cleaned.part_number);
    cleaned.component_part_number = toNumberOrUndefined(cleaned.component_part_number);
    cleaned.class_id = toNumberOrUndefined(cleaned.class_id);
    cleaned.unit_of_measure = toNumberOrUndefined(cleaned.unit_of_measure);
    cleaned.alternate_unit = toNumberOrUndefined(cleaned.alternate_unit);

    // Remove display-only fields
    delete cleaned.class_code;
    delete cleaned.class_unit_of_measure;
    delete cleaned.class_description;

    // UI specific fields that shouldn't be in the payload
    delete cleaned.part_description_es;
    delete cleaned.part_description_en;
    delete cleaned.unit_code;
    delete cleaned.unit_description;
    delete cleaned.includes_subitems;
    delete cleaned.payment_method_description;

    // Only delete part_number if it's the string code from UI, but schema expects int ID.
    // In this codebase, if part_number is populated from existing data, it's an ID.
    // If it's a new item, it might be cleaned.

    // Remove display-only fields from nested objects
    if (cleaned.customs) {
        delete cleaned.customs.origin_country_name;
        delete cleaned.customs.fraction_description;
        if (!hasValues(cleaned.customs)) delete cleaned.customs;
    }

    if (cleaned.fa_data) {
        delete cleaned.fa_data.includes_subitems;
        if (!hasValues(cleaned.fa_data)) delete cleaned.fa_data;
    }

    // Remove empty nested objects
    if (cleaned.financial && !hasValues(cleaned.financial)) delete cleaned.financial;
    if (cleaned.quantity && !hasValues(cleaned.quantity)) delete cleaned.quantity;
    if (cleaned.description && !hasValues(cleaned.description)) delete cleaned.description;
    if (cleaned.reference && !hasValues(cleaned.reference)) delete cleaned.reference;
    if (cleaned.series != null) {
        const arr = Array.isArray(cleaned.series) ? cleaned.series : [cleaned.series];
        cleaned.series = arr
            .map((s: any) => {
                if (!s || typeof s !== 'object') return null;
                const { id, line_item_id, ...rest } = s;
                return hasValues(rest) ? rest : null;
            })
            .filter((s: any) => s != null);
        if (cleaned.series.length === 0) delete cleaned.series;
    }

    return cleaned;
}

// Normalize numeric values from strings to numbers (for editing)
export function normalizeItemData(item: Partial<Item>): Partial<Item> {
    if (item) {
        const normalizedItem = { ...item };

        // Normalize financials
        if (normalizedItem.financial) {
            const f = normalizedItem.financial;
            normalizedItem.financial = {
                ...f,
                unit_cost_usd: f.unit_cost_usd != null ? Number(f.unit_cost_usd) : undefined,
                unit_cost_mxn: f.unit_cost_mxn != null ? Number(f.unit_cost_mxn) : undefined,
                value_usd: f.value_usd != null ? Number(f.value_usd) : undefined,
                value_mxn: f.value_mxn != null ? Number(f.value_mxn) : undefined
            };
        }

        // Normalize quantities
        if (normalizedItem.quantity) {
            const q = normalizedItem.quantity;
            normalizedItem.quantity = {
                ...q,
                quantity: q.quantity != null ? Number(q.quantity) : undefined,
                net_weight: q.net_weight != null ? Number(q.net_weight) : undefined,
                gross_weight: q.gross_weight != null ? Number(q.gross_weight) : undefined,
                package_quantity: q.package_quantity != null ? Number(q.package_quantity) : undefined
            };
        }

        return normalizedItem;
    }

    return item;
}