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/**
 * Copyright 2022 the original author or authors.
 *
 * 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
 *
 * https://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 io.micrometer.tracing.otel.bridge;

import java.time.Instant;
import java.util.Objects;
import java.util.concurrent.TimeUnit;

import io.micrometer.common.lang.Nullable;
import io.opentelemetry.api.common.AttributeKey;
import io.opentelemetry.api.common.Attributes;
import io.opentelemetry.api.trace.SpanContext;
import io.opentelemetry.api.trace.StatusCode;
import io.opentelemetry.context.Context;

class SpanFromSpanContext implements io.opentelemetry.api.trace.Span {

    final io.opentelemetry.api.trace.Span span;

    final SpanContext newSpanContext;

    final OtelTraceContext parentTraceContext;

    SpanFromSpanContext(io.opentelemetry.api.trace.Span span, SpanContext newSpanContext,
            OtelTraceContext parentTraceContext) {
        this.span = span != null ? span : io.opentelemetry.api.trace.Span.wrap(newSpanContext);
        this.newSpanContext = newSpanContext;
        this.parentTraceContext = parentTraceContext;
    }

    @Override
    public io.opentelemetry.api.trace.Span setAttribute(String key, @Nullable String value) {
        return span.setAttribute(key, value);
    }

    @Override
    public io.opentelemetry.api.trace.Span setAttribute(String key, long value) {
        return span.setAttribute(key, value);
    }

    @Override
    public io.opentelemetry.api.trace.Span setAttribute(String key, double value) {
        return span.setAttribute(key, value);
    }

    @Override
    public io.opentelemetry.api.trace.Span setAttribute(String key, boolean value) {
        return span.setAttribute(key, value);
    }

    @Override
    public io.opentelemetry.api.trace.Span addEvent(String name) {
        return span.addEvent(name);
    }

    @Override
    public io.opentelemetry.api.trace.Span addEvent(String name, long timestamp, TimeUnit unit) {
        return span.addEvent(name, timestamp, unit);
    }

    @Override
    public io.opentelemetry.api.trace.Span addEvent(String name, Instant timestamp) {
        return span.addEvent(name, timestamp);
    }

    @Override
    public io.opentelemetry.api.trace.Span addEvent(String name, Attributes attributes) {
        return span.addEvent(name, attributes);
    }

    @Override
    public io.opentelemetry.api.trace.Span addEvent(String name, Attributes attributes, long timestamp, TimeUnit unit) {
        return span.addEvent(name, attributes, timestamp, unit);
    }

    @Override
    public io.opentelemetry.api.trace.Span addEvent(String name, Attributes attributes, Instant timestamp) {
        return span.addEvent(name, attributes, timestamp);
    }

    @Override
    public io.opentelemetry.api.trace.Span setStatus(StatusCode canonicalCode) {
        return span.setStatus(canonicalCode);
    }

    @Override
    public io.opentelemetry.api.trace.Span setStatus(StatusCode canonicalCode, String description) {
        return span.setStatus(canonicalCode, description);
    }

    @Override
    public io.opentelemetry.api.trace.Span setAttribute(AttributeKey key, int value) {
        return span.setAttribute(key, value);
    }

    @Override
    public  io.opentelemetry.api.trace.Span setAttribute(AttributeKey key, T value) {
        return span.setAttribute(key, value);
    }

    @Override
    public io.opentelemetry.api.trace.Span recordException(Throwable exception) {
        return span.recordException(exception);
    }

    @Override
    public io.opentelemetry.api.trace.Span recordException(Throwable exception, Attributes additionalAttributes) {
        return span.recordException(exception, additionalAttributes);
    }

    @Override
    public io.opentelemetry.api.trace.Span updateName(String name) {
        return span.updateName(name);
    }

    @Override
    public void end() {
        span.end();
    }

    @Override
    public void end(long timestamp, TimeUnit unit) {
        span.end(timestamp, unit);
    }

    @Override
    public void end(Instant timestamp) {
        span.end(timestamp);
    }

    @Override
    public SpanContext getSpanContext() {
        return newSpanContext;
    }

    @Override
    public boolean isRecording() {
        return span.isRecording();
    }

    @Override
    public Context storeInContext(Context context) {
        return span.storeInContext(context);
    }

    @Override
    public String toString() {
        return "SpanFromSpanContext{" + "span=" + span + ", newSpanContext=" + newSpanContext + '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof io.opentelemetry.api.trace.Span)) {
            return false;
        }
        io.opentelemetry.api.trace.Span that = (io.opentelemetry.api.trace.Span) o;
        boolean spansEqual = Objects.equals(span, that);
        if (!spansEqual) {
            return false;
        }
        if (getClass() == o.getClass()) {
            return Objects.equals(this.newSpanContext, ((SpanFromSpanContext) that).newSpanContext);
        }
        return true;
    }

    @Override
    public int hashCode() {
        return Objects.hash(this.span, this.newSpanContext);
    }

}