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use {serde::Serialize, std::fmt::Debug, thiserror::Error};

#[derive(Error, Serialize, Debug, PartialEq, Eq)]
pub enum TranslateError {
    #[error("unimplemented - select on two or more than tables are not supported")]
    TooManyTables,

    #[error("unimplemented - select distinct is not supported")]
    SelectDistinctNotSupported,

    #[error("unimplemented - composite index is not supported")]
    CompositeIndexNotSupported,

    #[error("unimplemented - join on update not supported")]
    JoinOnUpdateNotSupported,

    #[error("unimplemented - compound identifier on update not supported: {0}")]
    CompoundIdentOnUpdateNotSupported(String),

    #[error("too many params in drop index")]
    TooManyParamsInDropIndex,

    #[error("invalid params in drop index, expected: table_name.index_name")]
    InvalidParamsInDropIndex,

    #[error("function args.length not matching: {name}, expected: {expected}, found: {found}")]
    FunctionArgsLengthNotMatching {
        name: String,
        expected: usize,
        found: usize,
    },

    #[error("function {name} requires at least {expected_minimum} argument(s), found: {found}")]
    FunctionArgsLengthNotMatchingMin {
        name: String,
        expected_minimum: usize,
        found: usize,
    },

    #[error("function args.length not matching: {name}, expected: {expected_minimum} ~ {expected_maximum}, found: {found}")]
    FunctionArgsLengthNotWithinRange {
        name: String,
        expected_minimum: usize,
        expected_maximum: usize,
        found: usize,
    },

    #[error("named function arg is not supported")]
    NamedFunctionArgNotSupported,

    #[error("unnamed function arg is not supported")]
    UnNamedFunctionArgNotSupported,

    #[error("subquery function arg is not supported")]
    UnreachableSubqueryFunctionArgNotSupported,

    #[error("INSERT INTO {0} DEFAULT VALUES is not supported")]
    DefaultValuesOnInsertNotSupported(String),

    #[error("empty function body is not supported")]
    UnsupportedEmptyFunctionBody,

    #[error("unsupported unnamed index")]
    UnsupportedUnnamedIndex,

    #[error("unsupported trim chars: expected: `TRIM((BOTH | LEADING | TRAILING) <text> FROM <expr>)`, got: `TRIM(<expr> [<chars>, ..])` syntax")]
    UnsupportedTrimChars,

    #[error("unsupported CAST format: {0}")]
    UnsupportedCastFormat(String),

    #[error("TRY_CAST(..) is not supported")]
    TryCastNotSupported,

    #[error("SAFE_CAST(..) is not supported")]
    SafeCastNotSupported,

    #[error("unsupported multiple alter table operations, expected: `ALTER TABLE <table> <operation>`, got: `ALTER TABLE <table> <operation>, <operation>, ..`")]
    UnsupportedMultipleAlterTableOperations,

    #[error("unreachable empty alter table operation")]
    UnreachableEmptyAlterTableOperation,

    #[error("unsupported `GROUP BY (ALL)`")]
    UnsupportedGroupByAll,

    #[error("wildcard function arg is not accepted")]
    WildcardFunctionArgNotAccepted,

    #[error("qualified wildcard is not supported - COUNT({0})")]
    QualifiedWildcardInCountNotSupported(String),

    #[error("order by - NULLS (FIRST | LAST) is not supported")]
    OrderByNullsFirstOrLastNotSupported,

    #[error("unsupported SHOW VARIABLE keyword: {0}")]
    UnsupportedShowVariableKeyword(String),

    #[error("unsupported SHOW VARIABLE statement: {0}")]
    UnsupportedShowVariableStatement(String),

    #[error("unsupported statement: {0}")]
    UnsupportedStatement(String),

    #[error("unsupported expr: {0}")]
    UnsupportedExpr(String),

    #[error("unsupported data type: {0}")]
    UnsupportedDataType(String),

    #[error("unsupported datetime field: {0}")]
    UnsupportedDateTimeField(String),

    #[error("unsupported ast literal: {0}")]
    UnsupportedAstLiteral(String),

    #[error("unreachable unary operator: {0}")]
    UnreachableUnaryOperator(String),

    #[error("unreachable empty ident")]
    UnreachableEmptyIdent,

    #[error("unsupported binary operator: {0}")]
    UnsupportedBinaryOperator(String),

    #[error("unsupported query set expr: {0}")]
    UnsupportedQuerySetExpr(String),

    #[error("unsupported query table factor: {0}")]
    UnsupportedQueryTableFactor(String),

    #[error("unsupported join constraint: {0}")]
    UnsupportedJoinConstraint(String),

    #[error("unsupported join operator: {0}")]
    UnsupportedJoinOperator(String),

    #[error("unsupported column option: {0}")]
    UnsupportedColumnOption(String),

    #[error("unsupported alter table operation: {0}")]
    UnsupportedAlterTableOperation(String),

    #[error("unsupported table factor: {0}")]
    UnsupportedTableFactor(String),

    #[error("Every derived table must have its own alias")]
    LackOfAlias,

    #[error("Series should have size")]
    LackOfArgs,

    #[error("unreachable empty object")]
    UnreachableEmptyObject,

    #[error("unreachable empty table")]
    UnreachableEmptyTable,

    #[error("unreachable - FROM cannot be ommitted in DELETE statement")]
    UnreachableOmittingFromInDelete,

    #[error("unimplemented - compound object is supported: {0}")]
    CompoundObjectNotSupported(String),

    #[error("cannot create index with reserved name: {0}")]
    ReservedIndexName(String),

    #[error("cannot drop primary index")]
    CannotDropPrimary,

    #[error("unreachable - empty columns")]
    UnreachableForeignKeyColumns(String),

    #[error("unsupported constraint: {0}")]
    UnsupportedConstraint(String),
}