/*
 * Copyright 2010-2014 Ning, Inc.
 * Copyright 2014-2015 The Billing Project, LLC
 *
 * The Billing Project licenses this file to you under the Apache License, version 2.0
 * (the "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at:
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package com.ning.billing.recurly.model;

import com.google.common.base.Objects;
import org.joda.time.DateTime;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
import java.math.BigDecimal;

@XmlRootElement(name = "invoice")
public class Invoice extends RecurlyObject {

    @XmlElement(name = "account")
    private Account account;

    @XmlElement(name = "original_invoice")
    private Invoice originalInvoice;

    @XmlElement(name = "original_invoices")
    private Invoice originalInvoices;

    @XmlElement(name = "uuid")
    private String uuid;

    @XmlElement(name = "state")
    private String state;

    @XmlElement(name = "invoice_number")
    private Integer invoiceNumber;

    @XmlElement(name = "invoice_number_prefix")
    private String invoiceNumberPrefix;

    @XmlElement(name = "po_number")
    private String poNumber;

    @XmlElement(name = "vat_number")
    private String vatNumber;

    @XmlElement(name = "subtotal_in_cents")
    private Integer subtotalInCents;

    @XmlElement(name = "tax_in_cents")
    private Integer taxInCents;

    @XmlElement(name = "total_in_cents")
    private Integer totalInCents;

    @XmlElement(name = "currency")
    private String currency;

    @XmlElement(name = "tax_region")
    private String taxRegion;

    @XmlElement(name = "tax_type")
    private String taxType;

    @XmlElement(name = "tax_rate")
    private BigDecimal taxRate;

    @XmlElement(name = "created_at")
    private DateTime createdAt;

    @XmlElement(name = "updated_at")
    private DateTime updatedAt;

    @XmlElement(name = "closed_at")
    private DateTime closedAt;

    @XmlElement(name = "collection_method")
    private String collectionMethod;

    @XmlElement(name = "net_terms")
    private Integer netTerms;

    @XmlElement(name = "attempt_next_collection_at")
    private DateTime attemptNextCollectionAt;

    @XmlElement(name = "recovery_reason")
    private String recoveryReason;

    @XmlElementWrapper(name = "line_items")
    @XmlElement(name = "adjustment")
    private Adjustments lineItems;

    @XmlElementWrapper(name = "transactions")
    @XmlElement(name = "transaction")
    private Transactions transactions;

    @XmlElementWrapper(name = "credit_payments")
    @XmlElement(name = "credit_payment")
    private CreditPayments creditPayments;

    @XmlElement(name = "customer_notes")
    private String customerNotes;

    @XmlElement(name = "terms_and_conditions")
    private String termsAndConditions;

    @XmlElement(name = "vat_reverse_charge_notes")
    private String vatReverseChargeNotes;

    @XmlElement(name = "gateway_code")
    private String gatewayCode;

    @XmlElement(name = "subtotal_before_discount_in_cents")
    private Integer subtotalBeforeDiscountInCents;

    @XmlElement(name = "discount_in_cents")
    private Integer discountInCents;

    @XmlElement(name = "balance_in_cents")
    private Integer balanceInCents;

    @XmlElement(name = "refundable_total_in_cents")
    private Integer refundableTotalInCents;

    @XmlElement(name = "due_on")
    private DateTime dueOn;

    @XmlElement(name = "type")
    private String type;

    @XmlElement(name = "origin")
    private String origin;

    @XmlElement(name = "address")
    private Address address;

    @XmlElement(name = "shipping_address")
    private ShippingAddress shippingAddress;

    @XmlElement(name = "surcharge_in_cents")
    private Integer surchargeInCents;

    @XmlElement(name = "transaction_type")
    private String transactionType;

    public Account getAccount() {
        if (account != null && account.getCreatedAt() == null) {
            account = fetch(account, Account.class);
        }
        return account;
    }

    /**
     * Set this original invoice to the passed in original invoice.
     *
     * @param originalInvoice original invoice
     *
     */
    public void setOriginalInvoice(Invoice originalInvoice) {
        this.originalInvoice = originalInvoice;
    }

    /**
     * Fetches the original invoice if the href is populated, otherwise return the current original invoice.
     *
     * @return fully loaded original invoice
     */
    public Invoice getOriginalInvoice() {
        if (originalInvoice != null && originalInvoice.getHref() != null && !originalInvoice.getHref().isEmpty()) {
            originalInvoice = fetch(originalInvoice, Invoice.class);
        }
        return originalInvoice;
    }

    /**
     * For use with RecurlyClient.getOriginalInvoices(). Check if an invoice had an <original_invoices> link
     * in the XML from the API.
     *
     * @return true if there are original invoices associated with this invoice
     */
    public Boolean hasOriginalInvoices() {
        return originalInvoices != null && originalInvoices.getHref() != null && !originalInvoices.getHref().isEmpty();
    }

    public String getId() {
        if (invoiceNumber == null) return null;
        if (invoiceNumberPrefix == null) return invoiceNumber.toString();
        return invoiceNumberPrefix + invoiceNumber.toString();
    }

    public void setAccount(final Account account) {
        this.account = account;
    }

    public String getUuid() {
        return uuid;
    }

    public void setUuid(final Object uuid) {
        this.uuid = stringOrNull(uuid);
    }

    public String getState() {
        return state;
    }

    public void setState(final Object state) {
        this.state = stringOrNull(state);
    }

    public Integer getInvoiceNumber() {
        return invoiceNumber;
    }

    public void setInvoiceNumber(final Object invoiceNumber) {
        this.invoiceNumber = integerOrNull(invoiceNumber);
    }

    public String getInvoiceNumberPrefix() {
        return invoiceNumberPrefix;
    }

    public void setInvoiceNumberPrefix(final Object invoiceNumberPrefix) {
        this.invoiceNumberPrefix = stringOrNull(invoiceNumberPrefix);
    }

    public String getPoNumber() {
        return poNumber;
    }

    public void setPoNumber(final Object poNumber) {
        this.poNumber = stringOrNull(poNumber);
    }

    public String getVatNumber() {
        return vatNumber;
    }

    public void setVatNumber(final Object varNumber) {
        this.vatNumber = stringOrNull(varNumber);
    }

    public Integer getSubtotalInCents() {
        return subtotalInCents;
    }

    public void setSubtotalInCents(final Object subtotalInCents) {
        this.subtotalInCents = integerOrNull(subtotalInCents);
    }

    public Integer getTaxInCents() {
        return taxInCents;
    }

    public void setTaxInCents(final Object taxInCents) {
        this.taxInCents = integerOrNull(taxInCents);
    }

    public Integer getTotalInCents() {
        return totalInCents;
    }

    public void setTotalInCents(final Object totalInCents) {
        this.totalInCents = integerOrNull(totalInCents);
    }

    public String getCurrency() {
        return currency;
    }

    public void setCurrency(final Object currency) {
        this.currency = stringOrNull(currency);
    }

    public void setTaxRegion(final Object taxRegion) {
      this.taxRegion = stringOrNull(taxRegion);
    }

    public String getTaxRegion() {
      return taxRegion;
    }

    public void setTaxRate(final Object taxRate) {
      this.taxRate = bigDecimalOrNull(taxRate);
    }

    public BigDecimal getTaxRate() {
      return taxRate;
    }

    public void setTaxType(final Object taxType) {
      this.taxType = stringOrNull(taxType);
    }

    public String getTaxType() {
      return taxType;
    }

    public DateTime getCreatedAt() {
        return createdAt;
    }

    public void setClosedAt(final Object closedAt) {
        this.closedAt = dateTimeOrNull(closedAt);
    }

    public DateTime getClosedAt() {
        return closedAt;
    }

    public void setCreatedAt(final Object createdAt) {
        this.createdAt = dateTimeOrNull(createdAt);
    }

    public DateTime getUpdatedAt() {
        return updatedAt;
    }

    public void setUpdatedAt(final Object updatedAt) {
        this.updatedAt = dateTimeOrNull(updatedAt);
    }

    public String getCollectionMethod() {
        return collectionMethod;
    }

    public void setCollectionMethod(final Object collectionMethod) {
        this.collectionMethod = stringOrNull(collectionMethod);
    }

    public Integer getNetTerms() {
        return netTerms;
    }

    public void setNetTerms(final Object netTerms) {
        this.netTerms = integerOrNull(netTerms);
    }

    public DateTime getAttemptNextCollectionAt() {
        return this.attemptNextCollectionAt;
    }

    public void setAttemptNextCollectionAt(final Object attemptNextCollectionAt) {
        this.attemptNextCollectionAt = dateTimeOrNull(attemptNextCollectionAt);
    }

    public String getRecoveryReason() {
        return this.recoveryReason;
    }

    public void setRecoveryReason(final Object recoveryReason) {
        this.recoveryReason = stringOrNull(recoveryReason);
    }

    public Adjustments getLineItems() {
        return lineItems;
    }

    public void setLineItems(final Adjustments lineItems) {
        this.lineItems = lineItems;
    }

    public Transactions getTransactions() {
        return transactions;
    }

    public void setTransactions(final Transactions transactions) {
        this.transactions = transactions;
    }

    public CreditPayments getCreditPayments() {
        return creditPayments;
    }

    public void setCreditPayments(final CreditPayments creditPayments) {
        this.creditPayments = creditPayments;
    }

    public String getCustomerNotes() {
        return customerNotes;
    }

    public void setCustomerNotes(final Object customerNotes) {
        this.customerNotes = stringOrNull(customerNotes);
    }

    public String getTermsAndConditions() {
        return termsAndConditions;
    }

    public void setTermsAndConditions(final Object termsAndConditions) {
        this.termsAndConditions = stringOrNull(termsAndConditions);
    }

    public String getVatReverseChargeNotes() {
        return vatReverseChargeNotes;
    }

    public void setVatReverseChargeNotes(final Object vatReverseChargeNotes) {
        this.vatReverseChargeNotes = stringOrNull(vatReverseChargeNotes);
    }

    public String getGatewayCode() {
        return gatewayCode;
    }

    public void setGatewayCode(final Object gatewayCode) {
        this.gatewayCode = stringOrNull(gatewayCode);
    }

    public Integer getSubtotalBeforeDiscountInCents() {
        return subtotalBeforeDiscountInCents;
    }

    public void setSubtotalBeforeDiscountInCents(final Object subtotalBeforeDiscountInCents) {
        this.subtotalBeforeDiscountInCents = integerOrNull(subtotalBeforeDiscountInCents);
    }

    public Integer getDiscountInCents() {
        return discountInCents;
    }

    public void setDiscountInCents(final Object discountInCents) {
        this.discountInCents = integerOrNull(discountInCents);
    }

    public Integer getBalanceInCents() {
        return balanceInCents;
    }

    public void setBalanceInCents(final Object balanceInCents) {
        this.balanceInCents = integerOrNull(balanceInCents);
    }

    public Integer getRefundableTotalInCents() {
        return refundableTotalInCents;
    }

    public void setRefundableTotalInCents(final Object refundableTotalInCents) {
        this.refundableTotalInCents = integerOrNull(refundableTotalInCents);
    }


    public DateTime getDueOn() {
        return dueOn;
    }

    public void setDueOn(final Object dueOn) {
        this.dueOn = dateTimeOrNull(dueOn);
    }

    public String getType() {
        return type;
    }

    public void setType(final Object type) {
        this.type = stringOrNull(type);
    }

    public String getOrigin() {
        return origin;
    }

    public void setOrigin(final Object origin) {
        this.origin = stringOrNull(origin);
    }

    public Address getAddress() {
        return address;
    }

    public void setAddress(final Address address) {
        this.address = address;
    }

    public ShippingAddress getShippingAddress() {
        return shippingAddress;
    }

    public void setShippingAddress(final ShippingAddress shippingAddress) {
        this.shippingAddress = shippingAddress;
    }

    public Integer getSurchargeInCents() {
        return surchargeInCents;
    }

    public void setSurchargeInCents(final Object surchargeInCents) {
        this.surchargeInCents = integerOrNull(surchargeInCents);
    }

    public String getTransactionType() {
        return transactionType;
    }

    public void setTransactionType(final Object transactionType) {
        this.transactionType = stringOrNull(transactionType);
    }

    @Override
    public String toString() {
        final StringBuilder sb = new StringBuilder("Invoice{");
        sb.append("account=").append(account);
        sb.append(", originalInvoice='").append(originalInvoice).append('\'');
        sb.append(", originalInvoices='").append(originalInvoices).append('\'');
        sb.append(", uuid='").append(uuid).append('\'');
        sb.append(", state='").append(state).append('\'');
        sb.append(", invoiceNumber=").append(invoiceNumber);
        sb.append(", invoiceNumberPrefix=").append(invoiceNumberPrefix);
        sb.append(", poNumber=").append(poNumber);
        sb.append(", vatNumber='").append(vatNumber).append('\'');
        sb.append(", subtotalInCents=").append(subtotalInCents);
        sb.append(", taxInCents=").append(taxInCents);
        sb.append(", totalInCents=").append(totalInCents);
        sb.append(", currency='").append(currency).append('\'');
        sb.append(", taxRegion=").append(taxRegion);
        sb.append(", taxType=").append(taxType);
        sb.append(", taxRate=").append(taxRate);
        sb.append(", createdAt=").append(createdAt);
        sb.append(", updatedAt=").append(updatedAt);
        sb.append(", closedAt=").append(closedAt);
        sb.append(", collectionMethod='").append(collectionMethod).append('\'');
        sb.append(", netTerms=").append(netTerms);
        sb.append(", attemptNextCollectionAt=").append(attemptNextCollectionAt);
        sb.append(", recoveryReason=").append(recoveryReason);
        sb.append(", lineItems=").append(lineItems);
        sb.append(", transactions=").append(transactions);
        sb.append(", creditPayments=").append(creditPayments);
        sb.append(", customerNotes='").append(customerNotes).append('\'');
        sb.append(", termsAndConditions='").append(termsAndConditions).append('\'');
        sb.append(", vatReverseChargeNotes='").append(vatReverseChargeNotes).append('\'');
        sb.append(", gatewayCode='").append(gatewayCode).append('\'');
        sb.append(", subtotalBeforeDiscountInCents=").append(subtotalBeforeDiscountInCents);
        sb.append(", discountInCents=").append(discountInCents);
        sb.append(", balanceInCents=").append(balanceInCents);
        sb.append(", refundableTotalInCents=").append(refundableTotalInCents);
        sb.append(", dueOn=").append(dueOn);
        sb.append(", type=").append(type);
        sb.append(", origin=").append(origin);
        sb.append(", address=").append(address);
        sb.append(", shippingAddress=").append(shippingAddress);
        sb.append(", surchargeInCents=").append(surchargeInCents);
        sb.append('}');
        return sb.toString();
    }

    @Override
    public boolean equals(final Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        final Invoice invoice = (Invoice) o;

        if (account != null ? !account.equals(invoice.account) : invoice.account != null) {
            return false;
        }
        if (address != null ? !address.equals(invoice.address) : invoice.address != null) {
            return false;
        }
        if (attemptNextCollectionAt != null ? attemptNextCollectionAt.compareTo(invoice.attemptNextCollectionAt) != 0 : invoice.attemptNextCollectionAt != null) {
            return false;
        }
        if (balanceInCents != null ? !balanceInCents.equals(invoice.balanceInCents) : invoice.balanceInCents != null) {
            return false;
        }
        if (closedAt != null ? closedAt.compareTo(invoice.closedAt) != 0 : invoice.closedAt != null) {
            return false;
        }
        if (collectionMethod != null ? !collectionMethod.equals(invoice.collectionMethod) : invoice.collectionMethod != null) {
            return false;
        }
        if (createdAt != null ? createdAt.compareTo(invoice.createdAt) != 0 : invoice.createdAt != null) {
            return false;
        }
        if (currency != null ? !currency.equals(invoice.currency) : invoice.currency != null) {
            return false;
        }
        if (customerNotes != null ? !customerNotes.equals(invoice.customerNotes) : invoice.customerNotes != null) {
            return false;
        }
        if (discountInCents != null ? !discountInCents.equals(invoice.discountInCents) : invoice.discountInCents != null) {
            return false;
        }
        if (invoiceNumber != null ? !invoiceNumber.equals(invoice.invoiceNumber) : invoice.invoiceNumber != null) {
            return false;
        }
        if (invoiceNumberPrefix != null ? !invoiceNumberPrefix.equals(invoice.invoiceNumberPrefix) : invoice.invoiceNumberPrefix != null) {
            return false;
        }
        if (lineItems != null ? !lineItems.equals(invoice.lineItems) : invoice.lineItems != null) {
            return false;
        }
        if (netTerms != null ? !netTerms.equals(invoice.netTerms) : invoice.netTerms != null) {
            return false;
        }
        if (originalInvoice != null ? !originalInvoice.equals(invoice.originalInvoice) : invoice.originalInvoice != null) {
            return false;
        }
        if (originalInvoices != null ? !originalInvoices.equals(invoice.originalInvoices) : invoice.originalInvoices != null) {
            return false;
        }
        if (origin != null ? !origin.equals(invoice.origin) : invoice.origin != null) {
            return false;
        }
        if (poNumber != null ? !poNumber.equals(invoice.poNumber) : invoice.poNumber != null) {
            return false;
        }
        if (recoveryReason != null ? !recoveryReason.equals(invoice.recoveryReason) : invoice.recoveryReason != null) {
            return false;
        }
        if (shippingAddress != null ? !shippingAddress.equals(invoice.shippingAddress) : invoice.shippingAddress != null) {
            return false;
        }
        if (state != null ? !state.equals(invoice.state) : invoice.state != null) {
            return false;
        }
        if (subtotalBeforeDiscountInCents != null ? !subtotalBeforeDiscountInCents.equals(invoice.subtotalBeforeDiscountInCents) : invoice.subtotalBeforeDiscountInCents != null) {
            return false;
        }
        if (subtotalInCents != null ? !subtotalInCents.equals(invoice.subtotalInCents) : invoice.subtotalInCents != null) {
            return false;
        }
        if (surchargeInCents != null ? !surchargeInCents.equals(invoice.surchargeInCents) : invoice.surchargeInCents != null) {
            return false;
        }
        if (refundableTotalInCents != null ? !refundableTotalInCents.equals(invoice.refundableTotalInCents) : invoice.refundableTotalInCents != null) {
            return false;
        }
        if (taxInCents != null ? !taxInCents.equals(invoice.taxInCents) : invoice.taxInCents != null) {
            return false;
        }
        if (totalInCents != null ? !totalInCents.equals(invoice.totalInCents) : invoice.totalInCents != null) {
            return false;
        }
        if (taxRegion != null ? !taxRegion.equals(invoice.taxRegion) : invoice.taxRegion != null) {
            return false;
        }
        if (taxType != null ? !taxType.equals(invoice.taxType) : invoice.taxType != null) {
            return false;
        }
        if (taxRate != null ? !taxRate.equals(invoice.taxRate) : invoice.taxRate != null) {
            return false;
        }
        if (termsAndConditions != null ? !termsAndConditions.equals(invoice.termsAndConditions) : invoice.termsAndConditions != null) {
            return false;
        }
        if (transactions != null ? !transactions.equals(invoice.transactions) : invoice.transactions != null) {
            return false;
        }
        if (creditPayments != null ? !creditPayments.equals(invoice.creditPayments) : invoice.creditPayments != null) {
            return false;
        }
        if (type != null ? !type.equals(invoice.type) : invoice.type != null) {
            return false;
        }
        if (updatedAt != null ? updatedAt.compareTo(invoice.updatedAt) != 0 : invoice.updatedAt != null) {
            return false;
        }
        if (uuid != null ? !uuid.equals(invoice.uuid) : invoice.uuid != null) {
            return false;
        }
        if (vatNumber != null ? !vatNumber.equals(invoice.vatNumber) : invoice.vatNumber != null) {
            return false;
        }
        if (vatReverseChargeNotes != null ? !vatReverseChargeNotes.equals(invoice.vatReverseChargeNotes) : invoice.vatReverseChargeNotes != null) {
            return false;
        }
        if (gatewayCode != null ? !gatewayCode.equals(invoice.gatewayCode) : invoice.gatewayCode != null) {
            return false;
        }
        if (transactionType != null ? !transactionType.equals(invoice.transactionType) : invoice.transactionType != null) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(
                account,
                originalInvoice,
                originalInvoices,
                uuid,
                state,
                invoiceNumber,
                invoiceNumberPrefix,
                poNumber,
                vatNumber,
                subtotalInCents,
                totalInCents,
                taxInCents,
                taxRegion,
                taxType,
                taxRate,
                currency,
                createdAt,
                updatedAt,
                closedAt,
                collectionMethod,
                netTerms,
                attemptNextCollectionAt,
                recoveryReason,
                lineItems,
                transactions,
                creditPayments,
                customerNotes,
                termsAndConditions,
                vatReverseChargeNotes,
                gatewayCode,
                subtotalBeforeDiscountInCents,
                discountInCents,
                balanceInCents,
                refundableTotalInCents,
                type,
                origin,
                address,
                shippingAddress,
                surchargeInCents,
                transactionType
        );
    }

}