schema

type AnalysisResult struct {
	IsCompatible bool
	Warnings     []TypeWarning
	Suggestions  []string
	RiskLevel    string // "LOW", "MEDIUM", "HIGH"
}

type CompatibilityIssue struct {
	SourcePattern string
	TargetType    string
	IssueType     string // "OVERFLOW", "PRECISION_LOSS", "DATA_LOSS"
	Description   string
	Mitigation    string
}

type Condition struct {
	Field    string `yaml:"field"`    // "column_name"/"is_primary_key"/"source_type"/"length"
	Operator string `yaml:"operator"` // "equals"/"contains"/"matches"/"range"
	Value    any    `yaml:"value"`
}

type ContextMappingRule struct {
	Name        string      `yaml:"name"`
	Conditions  []Condition `yaml:"conditions"`
	TargetType  string      `yaml:"target_type"`
	Priority    int         `yaml:"priority"`
	Description string      `yaml:"description"`
}

type ConverterFactory struct {
	// contains filtered or unexported fields
}

type FloatPolicy struct {
	PreferFloat64       bool   `yaml:"prefer_float64"`
	WarnOnPrecisionLoss bool   `yaml:"warn_on_precision_loss"`
	RoundingMode        string `yaml:"rounding_mode"`
}

type IntelligentTypeMapper struct {
	// contains filtered or unexported fields
}

type MappingRuleLoader struct {
	// contains filtered or unexported fields
}

type MappingRules struct {
	Version      string                       `yaml:"version"`
	UpdatedAt    time.Time                    `yaml:"updated_at"`
	DefaultRules map[string]map[string]string `yaml:"default_rules"`
	CustomRules  map[string]map[string]string `yaml:"custom_rules"`
	ContextRules []ContextMappingRule         `yaml:"context_rules"`
}

type MySQLConverter struct {
	// contains filtered or unexported fields
}

type PostgresConverter struct {
	// contains filtered or unexported fields
}

type PrecisionHandler struct {
	// contains filtered or unexported fields
}

type PrecisionPolicy struct {
	MaxPrecision     int    `yaml:"max_precision"`
	MaxScale         int    `yaml:"max_scale"`
	OverflowStrategy string `yaml:"overflow_strategy"` // "TRUNCATE"/"ERROR"/"WARN"
	RoundingMode     string `yaml:"rounding_mode"`     // "ROUND_HALF_UP"/"FLOOR"/"CEIL"
}

type PrecisionResult struct {
	TargetType  string
	HasLoss     bool
	Warnings    []TypeWarning
	Adjustments map[string]any
}

type SchemaConverter interface {
	// ConvertDDL converts DDL statements to the target database format.
	ConvertDDL(sourceDDL string, targetDB string) (string, error)

	// ConvertTable converts a single table structure.
	ConvertTable(sourceTable *models.TableSchema, targetDB string) (*models.TableSchema, error)

	// GetTypeMapping gets the type mapping (source type -> target type).
	GetTypeMapping(sourceType string, targetDB string) (string, error)
}

type TableContext struct {
	TableName string
	Engine    string
	Charset   string
	Collation string
}

type TiDBConverter struct {
	// contains filtered or unexported fields
}

type TypeAnalyzer struct {
	// contains filtered or unexported fields
}

type TypeMapping map[string]string

type TypeMappingContext struct {
	SourceType    string            // e.g. "VARCHAR(255)"
	SourceDB      string            // e.g. "mysql"
	TargetDB      string            // e.g. "clickhouse"
	ColumnName    string            // Column name for semantic analysis
	IsPrimaryKey  bool              // Is this a primary key column?
	IsIndexColumn bool              // Is this an index column?
	IsNullable    bool              // Is this column nullable?
	DefaultValue  string            // Default value
	TableContext  *TableContext     // Table level context
	CustomRules   map[string]string // Custom user rules
}

type TypeMappingResult struct {
	TargetType     string         // e.g. "String"
	Warnings       []TypeWarning  // Warnings generated during mapping
	Suggestions    []string       // Optimization suggestions
	PrecisionLoss  bool           // Indicates if precision loss occurred
	RequiresManual bool           // Indicates if manual review is required
	Metadata       map[string]any // Additional metadata (e.g., original precision)
}

type TypeWarning struct {
	Level          string // "INFO", "WARNING", "ERROR"
	Message        string
	Suggestion     string
	AffectedColumn string
}

type WarningCollector struct {
	// contains filtered or unexported fields
}

type WarningStatistics struct {
	TotalWarnings   int
	ByLevel         map[string]int
	ByCategory      map[string]int
	AffectedTables  int
	AffectedColumns int
}