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/*
* Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibSQL/Key.h>
#include <LibSQL/Meta.h>
#include <LibSQL/Type.h>
namespace SQL {
u32 Relation::hash() const
{
return key().hash();
}
SchemaDef::SchemaDef(String name)
: Relation(move(name))
{
}
SchemaDef::SchemaDef(Key const& key)
: Relation(key["schema_name"].to_string())
{
}
Key SchemaDef::key() const
{
auto key = Key(index_def()->to_tuple_descriptor());
key["schema_name"] = name();
key.set_pointer(pointer());
return key;
}
Key SchemaDef::make_key()
{
return Key(index_def());
}
NonnullRefPtr<IndexDef> SchemaDef::index_def()
{
NonnullRefPtr<IndexDef> s_index_def = IndexDef::construct("$schema", true, 0);
if (!s_index_def->size()) {
s_index_def->append_column("schema_name", SQLType::Text, Order::Ascending);
}
return s_index_def;
}
ColumnDef::ColumnDef(Relation* parent, size_t column_number, String name, SQLType sql_type)
: Relation(move(name), parent)
, m_index(column_number)
, m_type(sql_type)
, m_default(Value(sql_type))
{
}
Key ColumnDef::key() const
{
auto key = Key(index_def());
key["table_hash"] = parent_relation()->hash();
key["column_number"] = (int)column_number();
key["column_name"] = name();
key["column_type"] = (int)type();
return key;
}
void ColumnDef::set_default_value(Value const& default_value)
{
VERIFY(default_value.type() == type());
m_default = default_value;
}
Key ColumnDef::make_key(TableDef const& table_def)
{
Key key(index_def());
key["table_hash"] = table_def.key().hash();
return key;
}
NonnullRefPtr<IndexDef> ColumnDef::index_def()
{
NonnullRefPtr<IndexDef> s_index_def = IndexDef::construct("$column", true, 0);
if (!s_index_def->size()) {
s_index_def->append_column("table_hash", SQLType::Integer, Order::Ascending);
s_index_def->append_column("column_number", SQLType::Integer, Order::Ascending);
s_index_def->append_column("column_name", SQLType::Text, Order::Ascending);
s_index_def->append_column("column_type", SQLType::Integer, Order::Ascending);
}
return s_index_def;
}
KeyPartDef::KeyPartDef(IndexDef* index, String name, SQLType sql_type, Order sort_order)
: ColumnDef(index, index->size(), move(name), sql_type)
, m_sort_order(sort_order)
{
}
IndexDef::IndexDef(TableDef* table, String name, bool unique, u32 pointer)
: Relation(move(name), pointer, table)
, m_key_definition()
, m_unique(unique)
{
}
IndexDef::IndexDef(String name, bool unique, u32 pointer)
: IndexDef(nullptr, move(name), unique, pointer)
{
}
void IndexDef::append_column(String name, SQLType sql_type, Order sort_order)
{
auto part = KeyPartDef::construct(this, move(name), sql_type, sort_order);
m_key_definition.append(part);
}
NonnullRefPtr<TupleDescriptor> IndexDef::to_tuple_descriptor() const
{
NonnullRefPtr<TupleDescriptor> ret = adopt_ref(*new TupleDescriptor);
for (auto& part : m_key_definition) {
ret->append({ "", "", part.name(), part.type(), part.sort_order() });
}
return ret;
}
Key IndexDef::key() const
{
auto key = Key(index_def()->to_tuple_descriptor());
key["table_hash"] = parent_relation()->key().hash();
key["index_name"] = name();
key["unique"] = unique() ? 1 : 0;
return key;
}
Key IndexDef::make_key(TableDef const& table_def)
{
Key key(index_def());
key["table_hash"] = table_def.key().hash();
return key;
}
NonnullRefPtr<IndexDef> IndexDef::index_def()
{
NonnullRefPtr<IndexDef> s_index_def = IndexDef::construct("$index", true, 0);
if (!s_index_def->size()) {
s_index_def->append_column("table_hash", SQLType::Integer, Order::Ascending);
s_index_def->append_column("index_name", SQLType::Text, Order::Ascending);
s_index_def->append_column("unique", SQLType::Integer, Order::Ascending);
}
return s_index_def;
}
TableDef::TableDef(SchemaDef* schema, String name)
: Relation(move(name), schema)
, m_columns()
, m_indexes()
{
}
NonnullRefPtr<TupleDescriptor> TableDef::to_tuple_descriptor() const
{
NonnullRefPtr<TupleDescriptor> ret = adopt_ref(*new TupleDescriptor);
for (auto& part : m_columns) {
ret->append({ parent()->name(), name(), part.name(), part.type(), Order::Ascending });
}
return ret;
}
Key TableDef::key() const
{
auto key = Key(index_def()->to_tuple_descriptor());
key["schema_hash"] = parent_relation()->key().hash();
key["table_name"] = name();
key.set_pointer(pointer());
return key;
}
void TableDef::append_column(String name, SQLType sql_type)
{
auto column = ColumnDef::construct(this, num_columns(), move(name), sql_type);
m_columns.append(column);
}
void TableDef::append_column(Key const& column)
{
auto column_type = column["column_type"].to_int();
VERIFY(column_type.has_value());
append_column(column["column_name"].to_string(), static_cast<SQLType>(*column_type));
}
Key TableDef::make_key(SchemaDef const& schema_def)
{
return TableDef::make_key(schema_def.key());
}
Key TableDef::make_key(Key const& schema_key)
{
Key key(index_def());
key["schema_hash"] = schema_key.hash();
return key;
}
NonnullRefPtr<IndexDef> TableDef::index_def()
{
NonnullRefPtr<IndexDef> s_index_def = IndexDef::construct("$table", true, 0);
if (!s_index_def->size()) {
s_index_def->append_column("schema_hash", SQLType::Integer, Order::Ascending);
s_index_def->append_column("table_name", SQLType::Text, Order::Ascending);
}
return s_index_def;
}
}
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