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/*
 * Copyright 2018 Roman Proshin
 *
 * Licensed 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 org.proshin.finapi.bankconnection;

import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import org.apache.http.HttpStatus;
import org.json.JSONArray;
import org.json.JSONObject;
import org.proshin.finapi.accesstoken.AccessToken;
import org.proshin.finapi.bankconnection.in.ImportBankConnectionParameters;
import org.proshin.finapi.bankconnection.in.UpdateBankConnectionParameters;
import org.proshin.finapi.endpoint.Endpoint;
import org.proshin.finapi.primitives.IterableJsonArray;
import org.proshin.finapi.primitives.pair.CommaSeparatedPair;

/**
 * Bank Connections endpoint.
 */
public final class FpBankConnections implements BankConnections {

    private final Endpoint endpoint;
    private final AccessToken token;
    private final String url;

    public FpBankConnections(final Endpoint endpoint, final AccessToken token) {
        this(endpoint, token, "/api/v1/bankConnections");
    }

    public FpBankConnections(final Endpoint endpoint,
        final AccessToken token, final String url) {
        this.endpoint = endpoint;
        this.token = token;
        this.url = url;
    }

    @Override
    public BankConnection one(final Long id) {
        return new FpBankConnection(
            this.endpoint,
            this.token,
            new JSONObject(
                this.endpoint.get(
                    String.format("%s/%d", this.url, id),
                    this.token
                )
            ),
            this.url
        );
    }

    @Override
    public Iterable query(final Iterable ids) {
        return new IterableJsonArray<>(
            new JSONObject(
                this.endpoint.get(
                    this.url,
                    this.token,
                    new CommaSeparatedPair<>("ids", ids)
                )
            ).getJSONArray("connections"),
            (array, index) -> new FpBankConnection(
                this.endpoint,
                this.token,
                array.getJSONObject(index),
                this.url
            )
        );
    }

    @Override
    public Future importNew(final ImportBankConnectionParameters parameters) {
        return Executors.newSingleThreadExecutor().submit(
            () -> new FpBankConnection(
                this.endpoint,
                this.token,
                new JSONObject(
                    this.endpoint.post(
                        this.url + "/import",
                        this.token,
                        parameters,
                        HttpStatus.SC_CREATED
                    )
                ),
                this.url
            ));
    }

    @Override
    public Future update(final UpdateBankConnectionParameters parameters) {
        return Executors.newSingleThreadExecutor().submit(
            () -> new FpBankConnection(
                this.endpoint,
                this.token,
                new JSONObject(
                    this.endpoint.post(
                        this.url + "/update",
                        this.token,
                        parameters
                    )
                ),
                this.url
            ));
    }

    @Override
    public Iterable deleteAll() {
        return new IterableJsonArray<>(
            new JSONObject(
                this.endpoint.delete(this.url, this.token)
            ).getJSONArray("identifiers"),
            JSONArray::getLong
        );
    }
}