import {
  ISequelizeDomainMapper,
  MapperParamsType,
  SequelizeDomainMapper,
  ValidationErrorCollection,
  ValidationErrorDetail,
  extractOrPushError,
} from "@erp/core/api";
import { UniqueID, maybeFromNullableVO } from "@repo/rdx-ddd";
import { Result } from "@repo/rdx-utils";
import { InferCreationAttributes } from "sequelize";
import {
  CustomerInvoiceItem,
  CustomerInvoiceItemDescription,
  CustomerInvoiceProps,
  ItemAmount,
  ItemDiscount,
  ItemQuantity,
  ItemTaxes,
} from "../../../domain";
import { CustomerInvoiceItemCreationAttributes, CustomerInvoiceItemModel } from "../../sequelize";
import { ItemTaxesDomainMapper } from "./item-taxes.mapper";

export interface ICustomerInvoiceItemDomainMapper
  extends ISequelizeDomainMapper<
    CustomerInvoiceItemModel,
    CustomerInvoiceItemCreationAttributes,
    CustomerInvoiceItem
  > {}

export class CustomerInvoiceItemDomainMapper
  extends SequelizeDomainMapper<
    CustomerInvoiceItemModel,
    CustomerInvoiceItemCreationAttributes,
    CustomerInvoiceItem
  >
  implements ICustomerInvoiceItemDomainMapper
{
  private _taxesMapper: ItemTaxesDomainMapper;

  constructor(params: MapperParamsType) {
    super();
    this._taxesMapper = new ItemTaxesDomainMapper(params);
  }

  private mapAttributesToDomain(source: CustomerInvoiceItemModel, params?: MapperParamsType) {
    const { errors, index, attributes } = params as {
      index: number;
      errors: ValidationErrorDetail[];
      attributes: Partial<CustomerInvoiceProps>;
    };

    const itemId = extractOrPushError(
      UniqueID.create(source.item_id),
      `items[${index}].item_id`,
      errors
    );

    const description = extractOrPushError(
      maybeFromNullableVO(source.description, (value) =>
        CustomerInvoiceItemDescription.create(value)
      ),
      `items[${index}].description`,
      errors
    );

    const quantity = extractOrPushError(
      maybeFromNullableVO(source.quantity_value, (value) => ItemQuantity.create({ value })),
      `items[${index}].discount_percentage`,
      errors
    );

    const unitAmount = extractOrPushError(
      maybeFromNullableVO(source.unit_amount_value, (value) =>
        ItemAmount.create({ value, currency_code: attributes.currencyCode!.code })
      ),
      `items[${index}].unit_amount`,
      errors
    );

    return {
      itemId,
      languageCode: attributes.languageCode,
      currencyCode: attributes.currencyCode,
      description,
      quantity,

      unitAmount,
    };
  }

  public mapToDomain(
    source: CustomerInvoiceItemModel,
    params?: MapperParamsType
  ): Result<CustomerInvoiceItem, Error> {
    const { errors, index, requireIncludes } = params as {
      index: number;
      requireIncludes: boolean;
      errors: ValidationErrorDetail[];
      attributes: Partial<CustomerInvoiceProps>;
    };

    // 1) Valores escalares (atributos generales)
    const attributes = this.mapAttributesToDomain(source, params);

    // 2) Comprobar relaciones
    if (requireIncludes) {
      if (!source.taxes) {
        errors.push({
          path: `items[${index}].taxes`,
          message: "Taxes not included in query (requireIncludes=true)",
        });
      }
    }

    // 3) Importes
    const discountPercentage = extractOrPushError(
      maybeFromNullableVO(source.discount_percentage_value, (value) =>
        ItemDiscount.create({ value })
      ),
      `items[${index}].discount_percentage`,
      errors
    );

    // 4) Taxes (colección a nivel de item/línea)
    const taxesResults = this._taxesMapper.mapToDomainCollection(
      source.taxes,
      source.taxes.length,
      {
        attributes,
        ...params,
      }
    );

    if (taxesResults.isFailure) {
      errors.push({
        path: `taxes[${index}].discount_percentage`,
        message: taxesResults.error.message,
      });
    }

    // 5) Construcción del elemento de dominio

    const taxes = ItemTaxes.create({
      items: taxesResults.data.getAll(),
    });

    const createResult = CustomerInvoiceItem.create(
      {
        languageCode: attributes.languageCode!,
        currencyCode: attributes.currencyCode!,
        description: attributes.description!,
        quantity: attributes.quantity!,
        unitAmount: attributes.unitAmount!,
        discountPercentage: discountPercentage!,
        taxes,
      },
      attributes.itemId
    );

    if (createResult.isFailure) {
      return Result.fail(
        new ValidationErrorCollection("Invoice item entity creation failed", [
          { path: `items[${index}]`, message: createResult.error.message },
        ])
      );
    }

    return createResult;
  }

  public mapToPersistence(
    source: CustomerInvoiceItem,
    params?: MapperParamsType
  ): Result<InferCreationAttributes<CustomerInvoiceItemModel, {}>, Error> {
    throw new Error("not implemented");
    /*
    
        const { index, sourceParent } = params as {
      index: number;
      sourceParent: CustomerInvoice;
    };

    
    return {
      item_id: source.id.toPrimitive(),
      invoice_id: sourceParent.id.toPrimitive(),
      position: index,

      description: toNullable(source.description, (description) => description.toPrimitive()),

      quantity_value: toNullable(source.quantity, (value) => value.toPrimitive().value),
      quantity_scale: source.quantity.match(
        (value) => value.toPrimitive().scale,
        () => ItemQuantity.DEFAULT_SCALE
      ),

      unit_amount_value: toNullable(source.unitAmount, (value) => value.toPrimitive().value),
      unit_amount_scale: source.unitAmount.match(
        (value) => value.toPrimitive().scale,
        () => ItemAmount.DEFAULT_SCALE
      ),

      subtotal_amount_value: source.subtotalAmount.toPrimitive().value,
      subtotal_amount_scale: source.subtotalAmount.toPrimitive().scale,

      discount_percentage_value: toNullable(
        source.discountPercentage,
        (value) => value.toPrimitive().value
      ),
      discount_percentage_scale: source.discountPercentage.match(
        (value) => value.toPrimitive().scale,
        () => ItemAmount.DEFAULT_SCALE
      ),

      discount_amount_value: toNullable(
        source.discountAmount,
        (value) => value.toPrimitive().value
      ),
      discount_amount_scale: source.discountAmount.match(
        (value) => value.toPrimitive().scale,
        () => ItemDiscount.DEFAULT_SCALE
      ),

      taxable_amount_value: source.taxableAmount.toPrimitive().value,
      taxable_amount_scale: source.taxableAmount.toPrimitive().value,

      taxes_amount_value: source.taxesAmount.toPrimitive().value,
      taxes_amount_scale: source.taxesAmount.toPrimitive().value,

      total_amount_value: source.totalAmount.toPrimitive().value,
      total_amount_scale: source.totalAmount.toPrimitive().scale,
    };*/
  }
}