// Licensed to the Apache Software Foundation (ASF) under one

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// distributed with this work for additional information

// regarding copyright ownership.  The ASF 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.

//! Defines `ArrowError` for representing failures in various Arrow operations.

use std::fmt::{Debug, Display, Formatter};

use std::io::Write;

use std::error::Error;

/// Many different operations in the `arrow` crate return this error type.

#[derive(Debug)]

pub enum ArrowError {

    /// Returned when functionality is not yet available.

    NotYetImplemented(String),

    /// Wraps an external error.

    ExternalError(Box<dyn Error + Send + Sync>),

    /// Error during casting from one type to another.

    CastError(String),

    /// Memory or buffer error.

    MemoryError(String),

    /// Error during parsing from a string.

    ParseError(String),

    /// Error during schema-related operations.

    SchemaError(String),

    /// Error during computation.

    ComputeError(String),

    /// Error during division by zero.

    DivideByZero,

    /// Error when an arithmetic operation overflows.

    ArithmeticOverflow(String),

    /// Error during CSV-related operations.

    CsvError(String),

    /// Error during JSON-related operations.

    JsonError(String),

    /// Error during IO operations.

    IoError(String, std::io::Error),

    /// Error during IPC operations in `arrow-ipc` or `arrow-flight`.

    IpcError(String),

    /// Error indicating that an unexpected or bad argument was passed to a function.

    InvalidArgumentError(String),

    /// Error during Parquet operations.

    ParquetError(String),

    /// Error during import or export to/from the C Data Interface

    CDataInterface(String),

    /// Error when a dictionary key is bigger than the key type

    DictionaryKeyOverflowError,

    /// Error when the run end index in a REE array is bigger than the array length

    RunEndIndexOverflowError,

    /// Error when the offset overflows.

    OffsetOverflowError(usize),

}

impl ArrowError {

    /// Wraps an external error in an `ArrowError`.

    pub fn from_external_error(error: Box<dyn Error + Send + Sync>) -> Self {

        Self::ExternalError(error)

    }

}

impl From<std::io::Error> for ArrowError {

    fn from(error: std::io::Error) -> Self {

        ArrowError::IoError(error.to_string(), error)

    }

}

impl From<std::str::Utf8Error> for ArrowError {

    fn from(error: std::str::Utf8Error) -> Self {

        ArrowError::ParseError(error.to_string())

    }

}

impl From<std::string::FromUtf8Error> for ArrowError {

    fn from(error: std::string::FromUtf8Error) -> Self {

        ArrowError::ParseError(error.to_string())

    }

}

impl<W: Write> From<std::io::IntoInnerError<W>> for ArrowError {

    fn from(error: std::io::IntoInnerError<W>) -> Self {

        ArrowError::IoError(error.to_string(), error.into())

    }

}

impl Display for ArrowError {

    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {

        match self {

            ArrowError::NotYetImplemented(source) => {

                write!(f, "Not yet implemented: {}", &source)

            }

            ArrowError::ExternalError(source) => write!(f, "External error: {}", &source),

            ArrowError::CastError(desc) => write!(f, "Cast error: {desc}"),

            ArrowError::MemoryError(desc) => write!(f, "Memory error: {desc}"),

            ArrowError::ParseError(desc) => write!(f, "Parser error: {desc}"),

            ArrowError::SchemaError(desc) => write!(f, "Schema error: {desc}"),

            ArrowError::ComputeError(desc) => write!(f, "Compute error: {desc}"),

            ArrowError::ArithmeticOverflow(desc) => write!(f, "Arithmetic overflow: {desc}"),

            ArrowError::DivideByZero => write!(f, "Divide by zero error"),

            ArrowError::CsvError(desc) => write!(f, "Csv error: {desc}"),

            ArrowError::JsonError(desc) => write!(f, "Json error: {desc}"),

            ArrowError::IoError(desc, _) => write!(f, "Io error: {desc}"),

            ArrowError::IpcError(desc) => write!(f, "Ipc error: {desc}"),

            ArrowError::InvalidArgumentError(desc) => {

                write!(f, "Invalid argument error: {desc}")

            }

            ArrowError::ParquetError(desc) => {

                write!(f, "Parquet argument error: {desc}")

            }

            ArrowError::CDataInterface(desc) => {

                write!(f, "C Data interface error: {desc}")

            }

            ArrowError::DictionaryKeyOverflowError => {

                write!(f, "Dictionary key bigger than the key type")

            }

            ArrowError::RunEndIndexOverflowError => {

                write!(f, "Run end encoded array index overflow error")

            }

            ArrowError::OffsetOverflowError(offset) => {

                write!(f, "Offset overflow error: {offset}")

            }

        }

    }

}

impl Error for ArrowError {

    fn source(&self) -> Option<&(dyn Error + 'static)> {

        match self {

            ArrowError::ExternalError(source) => Some(source.as_ref()),

            ArrowError::IoError(_, source) => Some(source),

            _ => None,

        }

    }

}

#[cfg(test)]

mod test {

    use super::*;

    #[test]

    fn error_source() {

        let e1 = ArrowError::DivideByZero;

        assert!(e1.source().is_none());

        // one level of wrapping

        let e2 = ArrowError::ExternalError(Box::new(e1));

        let source = e2.source().unwrap().downcast_ref::<ArrowError>().unwrap();

        assert!(matches!(source, ArrowError::DivideByZero));

        // two levels of wrapping

        let e3 = ArrowError::ExternalError(Box::new(e2));

        let source = e3

            .source()

            .unwrap()

            .downcast_ref::<ArrowError>()

            .unwrap()

            .source()

            .unwrap()

            .downcast_ref::<ArrowError>()

            .unwrap();

        assert!(matches!(source, ArrowError::DivideByZero));

    }

}