excel-mcp-server 0.1.0

An MCP server that exposes Excel manipulation tools over stdio and streamable HTTP transports
Documentation 
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use super::common::workbook_not_found;
use crate::store::WorkbookStore;
use crate::types::inputs::*;
use crate::types::responses::*;

pub fn set_column_width(
    store: &mut WorkbookStore,
    input: SetColumnWidthInput,
) -> Result<String, anyhow::Error> {
    let entry = match store.get_mut(&input.workbook_id) {
        Some(e) => e,
        None => return Ok(workbook_not_found(store, &input.workbook_id)),
    };
    let idx = match find_sheet(&entry.data, &input.sheet_name) {
        Some(i) => i,
        None => return Ok(sheet_err(&input.sheet_name)),
    };
    let col =
        zavora_xlsx::utility::col_from_letter(&input.column).map_err(|e| anyhow::anyhow!("{e}"))?;
    entry
        .data
        .worksheet(idx)
        .map_err(|e| anyhow::anyhow!("{e}"))?
        .set_column_width(col, input.width)
        .map_err(|e| anyhow::anyhow!("{e}"))?;
    Ok(success_no_data(&format!(
        "Column {} width set to {}",
        input.column, input.width
    )))
}

pub fn set_row_height(
    store: &mut WorkbookStore,
    input: SetRowHeightInput,
) -> Result<String, anyhow::Error> {
    let entry = match store.get_mut(&input.workbook_id) {
        Some(e) => e,
        None => return Ok(workbook_not_found(store, &input.workbook_id)),
    };
    let idx = match find_sheet(&entry.data, &input.sheet_name) {
        Some(i) => i,
        None => return Ok(sheet_err(&input.sheet_name)),
    };
    let row = input.row.saturating_sub(1); // input is 1-based
    entry
        .data
        .worksheet(idx)
        .map_err(|e| anyhow::anyhow!("{e}"))?
        .set_row_height(row, input.height)
        .map_err(|e| anyhow::anyhow!("{e}"))?;
    Ok(success_no_data(&format!(
        "Row {} height set to {}",
        input.row, input.height
    )))
}

pub fn freeze_panes(
    store: &mut WorkbookStore,
    input: FreezePanesInput,
) -> Result<String, anyhow::Error> {
    let entry = match store.get_mut(&input.workbook_id) {
        Some(e) => e,
        None => return Ok(workbook_not_found(store, &input.workbook_id)),
    };
    let idx = match find_sheet(&entry.data, &input.sheet_name) {
        Some(i) => i,
        None => return Ok(sheet_err(&input.sheet_name)),
    };
    let (row, col) =
        zavora_xlsx::utility::parse_cell_ref(&input.cell).map_err(|e| anyhow::anyhow!("{e}"))?;
    entry
        .data
        .worksheet(idx)
        .map_err(|e| anyhow::anyhow!("{e}"))?
        .set_freeze_panes(row, col)
        .map_err(|e| anyhow::anyhow!("{e}"))?;
    Ok(success_no_data(&format!("Panes frozen at {}", input.cell)))
}

fn find_sheet(wb: &zavora_xlsx::Workbook, name: &str) -> Option<usize> {
    wb.sheet_names().iter().position(|n| *n == name)
}
fn sheet_err(name: &str) -> String {
    error(
        ErrorCategory::NotFound,
        &format!("Sheet '{}' not found", name),
        "Check sheet name.",
    )
}