// Package ods provides a lightweight ODS (OpenDocument Spreadsheet) writer and reader.
// ODS files are ZIP archives containing XML files conforming to the
// OpenDocument Format (ODF) 1.2 specification (ISO/IEC 26300).
package ods

// CellType represents the data type of a cell.
type CellType int

const (
	CellString CellType = iota
	CellFloat
	CellCurrency
	CellDate
	CellFormula
	CellEmpty
)

// Sheet represents a named sheet within an ODS workbook.
type Sheet struct {
	Name    string
	Columns []Column
	Rows    []Row
}

// Column defines column properties.
type Column struct {
	Width  string // e.g., "2.5cm", "80pt"
	Hidden bool
}

// Row represents a single row.
type Row struct {
	Cells   []Cell
	IsBlank bool // preserve blank separator rows
}

// Cell represents a single cell value.
type Cell struct {
	Value   string   // display/string value
	Type    CellType // data type
	Formula string   // ODS formula, e.g., "of:=[.G3]*[.H3]"
}

// Workbook is the top-level container passed to Write.
type Workbook struct {
	Sheets []Sheet
	Meta   map[string]string // custom metadata key-value pairs
}