/** Column metadata parsed from a format row cell */
export interface ColumnMeta {
    align: string;
    type: string;
    width?: number;
    required?: boolean;
    sort?: string;
    wrap?: boolean;
}
/** Resolved chart descriptor from a visual formula */
export interface ChartDescriptor {
    cell: string;
    type: 'pie' | 'bar' | 'line' | 'sparkline' | 'gauge';
    labelRange?: string;
    valueRange?: string;
    resolvedLabels: string[];
    resolvedValues: number[];
    min?: number;
    max?: number;
}
/** Row and column index from a cell reference */
export interface CellIndex {
    row: number;
    col: number;
}
/** Bounds of a range reference */
export interface RangeBounds {
    startRow: number;
    startCol: number;
    endRow: number;
    endCol: number;
}
/** Parsed condition from a query string */
export interface ParsedCondition {
    col: string;
    op: string;
    value: string;
}
/** Result from a query operation */
export interface QueryResult {
    table: string;
    data: string[][];
    headers: string[];
    columnMeta: ColumnMeta[];
    message: string;
    matchCount: number;
}
/** Result from a SQL operation */
export interface SqlResult {
    result: any;
    columnMeta: ColumnMeta[];
    count: number;
    message: string;
}
/** Column schema information */
export interface SchemaColumn {
    column: string;
    type: string;
    align: string;
    nonEmpty: number;
    total: number;
}
/** Full engine state snapshot for UI rendering */
export interface EngineSnapshot {
    table: string;
    data: string[][];
    formulas: Record<string, string>;
    headers: string[];
    columnMeta: ColumnMeta[];
    charts: ChartDescriptor[];
    message: string;
    rows: number;
    cols: number;
}
/** Options for CsvEngine construction */
export interface CsvEngineOptions {
    headers?: string[];
    columnMeta?: ColumnMeta[];
    defaultCols?: number;
}
/** Options for CSV serialization */
export interface ToCsvOptions {
    formatRow?: boolean;
}
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