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 *
 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2023 QuestDB
 *
 *  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.
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package io.questdb.cairo;

import io.questdb.std.Chars;
import io.questdb.std.FlyweightMessageContainer;
import io.questdb.std.ThreadLocal;
import io.questdb.std.str.StringSink;

public class ImplicitCastException extends RuntimeException implements FlyweightMessageContainer {
    private static final StackTraceElement[] EMPTY_STACK_TRACE = {};
    private static final ThreadLocal tlException = new ThreadLocal<>(ImplicitCastException::new);
    protected final StringSink message = new StringSink();

    public static ImplicitCastException inconvertibleValue(double value, int fromType, int toType) {
        return instance().put("inconvertible value: ")
                .put(value)
                .put(" [")
                .put(ColumnType.nameOf(fromType))
                .put(" -> ")
                .put(ColumnType.nameOf(toType))
                .put(']');
    }

    public static ImplicitCastException inconvertibleValue(char value, int fromType, int toType) {
        return instance().put("inconvertible value: ")
                .put(value)
                .put(" [")
                .put(ColumnType.nameOf(fromType))
                .put(" -> ")
                .put(ColumnType.nameOf(toType))
                .put(']');
    }

    public static ImplicitCastException inconvertibleValue(int tupleIndex, CharSequence value, int fromType, int toType) {
        if (tupleIndex == -1) {
            return inconvertibleValue(value, fromType, toType);
        }

        ImplicitCastException ice = instance();
        ice.put("inconvertible value: ");
        if (value != null) {
            ice.put('`').put(value).put('`');
        } else {
            ice.put("null");
        }

        return ice.put(" [")
                .put(ColumnType.nameOf(fromType))
                .put(" -> ")
                .put(ColumnType.nameOf(toType))
                .put(']')
                .put(" tuple: ")
                .put(tupleIndex);
    }

    public static ImplicitCastException inconvertibleValue(CharSequence value, int fromType, int toType) {
        ImplicitCastException ice = instance();
        ice.put("inconvertible value: ");
        if (value != null) {
            ice.put('`').put(value).put('`');
        } else {
            ice.put("null");
        }

        return ice.put(" [")
                .put(ColumnType.nameOf(fromType))
                .put(" -> ")
                .put(ColumnType.nameOf(toType))
                .put(']');
    }

    public static ImplicitCastException inconvertibleValue(long value, int fromType, int toType) {
        return instance().put("inconvertible value: ")
                .put(value)
                .put(" [")
                .put(ColumnType.nameOf(fromType))
                .put(" -> ")
                .put(ColumnType.nameOf(toType))
                .put(']');
    }

    public static ImplicitCastException instance() {
        ImplicitCastException ex = tlException.get();
        // This is to have correct stack trace in local debugging with -ea option
        assert (ex = new ImplicitCastException()) != null;
        ex.message.clear();
        return ex;
    }

    @Override
    public CharSequence getFlyweightMessage() {
        return message;
    }

    @Override
    public String getMessage() {
        return Chars.toString(message);
    }

    @Override
    public StackTraceElement[] getStackTrace() {
        StackTraceElement[] result = EMPTY_STACK_TRACE;
        // This is to have correct stack trace reported in CI
        assert (result = super.getStackTrace()) != null;
        return result;
    }

    public ImplicitCastException put(long value) {
        message.put(value);
        return this;
    }

    public ImplicitCastException put(double value) {
        message.put(value);
        return this;
    }

    public ImplicitCastException put(CharSequence cs) {
        message.put(cs);
        return this;
    }

    public ImplicitCastException put(char c) {
        message.put(c);
        return this;
    }
}