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/*
 * AquaVM Workflow Engine
 *
 * Copyright (C) 2024 Fluence DAO
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation version 3 of the
 * License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

use super::*;

use std::fmt;

impl fmt::Display for ApResult<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use ApResult::*;

        match self {
            Scalar(scalar) => write!(f, "{scalar}"),
            Stream(stream) => write!(f, "{stream}"),
        }
    }
}

impl fmt::Display for ImmutableValue<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use ImmutableValue::*;

        match self {
            InitPeerId => write!(f, "%init_peer_id%"),
            Error(error_accessor) => display_error(f, error_accessor),
            LastError(error_accessor) => display_last_error(f, error_accessor),
            Literal(literal) => write!(f, r#""{literal}""#),
            Timestamp => write!(f, "%timestamp%"),
            TTL => write!(f, "%ttl%"),
            Number(number) => write!(f, "{number}"),
            Boolean(bool) => write!(f, "{bool}"),
            EmptyArray => write!(f, "[]"),
            Variable(variable) => write!(f, "{variable}"),
            VariableWithLambda(variable) => write!(f, "{variable}"),
        }
    }
}

impl fmt::Display for ResolvableToPeerIdVariable<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use ResolvableToPeerIdVariable::*;

        match self {
            InitPeerId => write!(f, "%init_peer_id%"),
            Literal(literal) => write!(f, r#""{literal}""#),
            Scalar(scalar) => write!(f, "{scalar}"),
            ScalarWithLambda(scalar) => write!(f, "{scalar}"),
            CanonStreamWithLambda(canon_stream) => write!(f, "{canon_stream}"),
            CanonStreamMapWithLambda(canon_stream_map) => write!(f, "{canon_stream_map}"),
        }
    }
}

impl fmt::Display for ResolvableToStringVariable<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use ResolvableToStringVariable::*;

        match self {
            Literal(literal) => write!(f, r#""{literal}""#),
            Scalar(scalar) => write!(f, "{scalar}"),
            ScalarWithLambda(scalar) => write!(f, "{scalar}"),
            CanonStreamWithLambda(canon_stream) => write!(f, "{canon_stream}"),
            CanonStreamMapWithLambda(canon_stream_map) => write!(f, "{canon_stream_map}"),
        }
    }
}

impl fmt::Display for CallOutputValue<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use CallOutputValue::*;

        match self {
            Scalar(scalar) => write!(f, "{scalar}"),
            Stream(stream) => write!(f, "{stream}"),
            None => Ok(()),
        }
    }
}

impl fmt::Display for ApArgument<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use ApArgument::*;

        match self {
            InitPeerId => write!(f, "%init_peer_id%"),
            Error(error_accessor) => display_error(f, error_accessor),
            LastError(error_accessor) => display_last_error(f, error_accessor),
            Literal(str) => write!(f, r#""{str}""#),
            Timestamp => write!(f, "%timestamp%"),
            TTL => write!(f, "%ttl%"),
            Number(number) => write!(f, "{number}"),
            Boolean(bool) => write!(f, "{bool}"),
            EmptyArray => write!(f, "[]"),
            Scalar(scalar) => write!(f, "{scalar}"),
            ScalarWithLambda(scalar) => write!(f, "{scalar}"),
            CanonStream(canon_stream) => write!(f, "{canon_stream}"),
            CanonStreamWithLambda(canon_stream) => write!(f, "{canon_stream}"),
            CanonStreamMap(canon_stream_map) => write!(f, "{canon_stream_map}"),
            CanonStreamMapWithLambda(canon_stream_map) => write!(f, "{canon_stream_map}"),
        }
    }
}

impl fmt::Display for StreamMapKeyClause<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use StreamMapKeyClause::*;

        match self {
            Literal(str) => write!(f, r#""{str}""#),
            Int(int) => write!(f, "{int}"),
            Scalar(scalar) => write!(f, "{scalar}"),
            ScalarWithLambda(scalar) => write!(f, "{scalar}"),
            CanonStreamWithLambda(canon_stream) => write!(f, "{canon_stream}"),
        }
    }
}

impl fmt::Display for Triplet<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(
            f,
            "{} ({} {})",
            self.peer_id, self.service_id, self.function_name
        )
    }
}

impl fmt::Display for NewArgument<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::Scalar(scalar) => write!(f, "{scalar}"),
            Self::Stream(stream) => write!(f, "{stream}"),
            Self::CanonStream(canon_stream) => write!(f, "{canon_stream}"),
            Self::StreamMap(stream_map) => write!(f, "{stream_map}"),
            Self::CanonStreamMap(canon_stream_map) => write!(f, "{canon_stream_map}"),
        }
    }
}

impl fmt::Display for Number {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use Number::*;

        match self {
            Int(number) => write!(f, "{number}"),
            Float(number) => write!(f, "{number}"),
        }
    }
}

impl fmt::Display for FoldScalarIterable<'_> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        use FoldScalarIterable::*;

        match self {
            Scalar(scalar) => write!(f, "{scalar}"),
            ScalarWithLambda(scalar) => write!(f, "{scalar}"),
            CanonStream(canon_stream) => write!(f, "{canon_stream}"),
            CanonStreamMap(canon_stream_map) => write!(f, "{canon_stream_map}"),
            CanonStreamMapWithLambda(canon_stream_map) => write!(f, "{canon_stream_map}"),
            EmptyArray => write!(f, "[]"),
        }
    }
}

impl From<Number> for serde_json::Value {
    fn from(number: Number) -> Self {
        (&number).into()
    }
}

impl From<&Number> for serde_json::Value {
    fn from(number: &Number) -> Self {
        match number {
            Number::Int(value) => (*value).into(),
            Number::Float(value) => (*value).into(),
        }
    }
}

impl From<&Number> for air_interpreter_value::JValue {
    fn from(number: &Number) -> Self {
        match number {
            Number::Int(value) => (*value).into(),
            Number::Float(value) => (*value).into(),
        }
    }
}

fn display_last_error(f: &mut fmt::Formatter, lambda_ast: &Option<LambdaAST>) -> fmt::Result {
    use crate::parser::LAST_ERROR;

    match lambda_ast {
        Some(lambda_ast) => write!(f, "{LAST_ERROR}{lambda_ast}"),
        None => write!(f, "{LAST_ERROR}"),
    }
}

fn display_error(f: &mut fmt::Formatter, error: &InstructionErrorAST) -> fmt::Result {
    use crate::parser::ERROR;

    let InstructionErrorAST { lens } = error;

    match lens {
        Some(lens) => write!(f, "{ERROR}{lens}"),
        None => write!(f, "{ERROR}"),
    }
}