// Copyright 2011 Google Inc.
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
//   notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
//   notice, this list of conditions and the following disclaimer in the
//   documentation and/or other materials provided with the distribution.
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//   may be used to endorse or promote products derived from this software
//   without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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#include "utils/sqlite/exceptions.hpp"

extern "C" {
#include <sqlite3.h>
}

#include "utils/format/macros.hpp"
#include "utils/sqlite/c_gate.hpp"

namespace sqlite = utils::sqlite;


/// Constructs a new error with a plain-text message.
///
/// \param message The plain-text error message.
sqlite::error::error(const std::string& message) :
    std::runtime_error(message)
{
}


/// Destructor for the error.
sqlite::error::~error(void) throw()
{
}


/// Constructs a new error.
///
/// \param api_function_ The name of the API function that caused the error.
/// \param message_ The plain-text error message provided by SQLite.
sqlite::api_error::api_error(const std::string& api_function_,
                             const std::string& message_) :
    error(message_),
    _api_function(api_function_)
{
}


/// Destructor for the error.
sqlite::api_error::~api_error(void) throw()
{
}


/// Constructs a new api_error with the message in the SQLite database.
///
/// \param database_ The SQLite database.
/// \param api_function_ The name of the SQLite C API function that caused the
///     error.
///
/// \return A new api_error with the retrieved message.
sqlite::api_error
sqlite::api_error::from_database(database& database_,
                                 const std::string& api_function_)
{
    ::sqlite3* c_db = database_c_gate(database_).c_database();
    return api_error(api_function_, ::sqlite3_errmsg(c_db));
}


/// Gets the name of the SQlite C API function that caused this error.
///
/// \return The name of the function.
const std::string&
sqlite::api_error::api_function(void) const
{
    return _api_function;
}


/// Constructs a new error.
///
/// \param name_ The name of the unknown column.
sqlite::invalid_column_error::invalid_column_error(const std::string& name_) :
    error(F("Unknown column '%s'") % name_),
    _column_name(name_)
{
}


/// Destructor for the error.
sqlite::invalid_column_error::~invalid_column_error(void) throw()
{
}


/// Gets the name of the column that could not be found.
///
/// \return The name of the column requested by the user.
const std::string&
sqlite::invalid_column_error::column_name(void) const
{
    return _column_name;
}