1:   2:   3:   4:   5:   6:   7:   8:   9:  10:  11:  12:  13:  14:  15:  16:  17:  18:  19:  20:  21:  22:  23:  24:  25:  26:  27:  28:  29:  30:  31:  32:  33:  34:  35:  36:  37:  38:  39:  40:  41:  42:  43:  44:  45:  46:  47:  48:  49:  50:  51:  52:  53:  54:  55:  56:  57:  58:  59:  60:  61:  62:  63:  64:  65:  66:  67:  68:  69:  70:  71:  72:  73:  74:  75:  76:  77:  78:  79:  80:  81:  82:  83:  84:  85:  86:  87:  88:  89:  90:  91:  92:  93:  94:  95:  96:  97:  98:  99: 100: 101: 102: 103: 104: 105: 106: 107: 108: 109: 110: 111: 112: 113: 114: 115: 116: 117: 118: 119: 120: 121: 122: 123: 

<?php

    namespace Inlm\SchemaGenerator;

    use CzProject\SqlSchema;


    class ConfigurationFactory
    {
        public function __construct()
        {
            throw new StaticClassException('This is static class.');
        }


        /**
         * @return Configuration
         */
        public static function fromArray(array $config)
        {
            $schema = new SqlSchema\Schema;
            $configuration = new Configuration($schema);

            if (isset($config['options']) && is_array($config['options'])) {
                $configuration->setOptions($config['options']);
            }

            if (isset($config['schema']) && is_array($config['schema'])) {
                foreach ($config['schema'] as $definition) {
                    self::createTable($schema, $definition);
                }
            }

            return $configuration;
        }


        private static function createTable(SqlSchema\Schema $schema, array $definition)
        {
            $table = $schema->addTable($definition['name']);

            if (isset($definition['comment'])) {
                $table->setComment($definition['comment']);
            }

            if (isset($definition['columns'])) {
                foreach ($definition['columns'] as $column) {
                    $table->addColumn(self::createTableColumn($column));
                }
            }

            if (isset($definition['indexes'])) {
                foreach ($definition['indexes'] as $index) {
                    $table->addIndex(self::createTableIndex($index));
                }
            }

            if (isset($definition['foreignKeys'])) {
                foreach ($definition['foreignKeys'] as $foreignKey) {
                    $table->addForeignKey(self::createTableForeignKey($foreignKey));
                }
            }

            if (isset($definition['options'])) {
                foreach ($definition['options'] as $option => $optionValue) {
                    $table->setOption($option, $optionValue);
                }
            }
        }


        private static function createTableColumn(array $definition)
        {
            $column = new SqlSchema\Column(
                $definition['name'],
                $definition['type'],
                isset($definition['parameters']) ? $definition['parameters'] : array(),
                isset($definition['options']) ? $definition['options'] : array()
            );
            $column->setNullable(isset($definition['nullable']) ? $definition['nullable'] : FALSE);
            $column->setAutoIncrement(isset($definition['autoIncrement']) ? $definition['autoIncrement'] : FALSE);
            $column->setComment(isset($definition['comment']) ? $definition['comment'] : NULL);
            return $column;
        }


        private static function createTableIndex(array $definition)
        {
            $index = new SqlSchema\Index($definition['name'], $definition['type']);

            foreach ($definition['columns'] as $column) {
                $index->addColumn(self::createTableIndexColumn($column));
            }

            return $index;
        }


        private static function createTableIndexColumn(array $definition)
        {
            $order = isset($definition['order']) ? $definition['order'] : 'ASC';
            $column = new SqlSchema\IndexColumn($definition['name'], $order);
            $column->setLength(isset($definition['length']) ? $definition['length'] : NULL);
            return $column;
        }


        private static function createTableForeignKey(array $definition)
        {
            $foreignKey = new SqlSchema\ForeignKey($definition['name'], $definition['columns'], $definition['targetTable'], $definition['targetColumns']);

            if (isset($definition['onUpdateAction'])) {
                $foreignKey->setOnUpdateAction($definition['onUpdateAction']);
            }

            if (isset($definition['onDeleteAction'])) {
                $foreignKey->setOnDeleteAction($definition['onDeleteAction']);
            }

            return $foreignKey;
        }
    }