jtool-grep 0.3.0

notebook-specific grep tool for jtool
Documentation 
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//! JSON output formatter

use super::{OutputFormatter, OutputOptions};
use crate::types::GrepResult;
use anyhow::Result;
use serde_json::json;

/// JSON output formatter
pub struct JsonFormatter {
    options: OutputOptions,
}

impl JsonFormatter {
    pub fn new(options: OutputOptions) -> Self {
        Self { options }
    }
}

impl Default for JsonFormatter {
    fn default() -> Self {
        Self::new(OutputOptions::default())
    }
}

impl OutputFormatter for JsonFormatter {
    fn format_result(&self, result: &GrepResult) -> Result<String> {
        if self.options.count_mode {
            let output = json!({
                "notebook": result.notebook,
                "count": result.matches.len(),
            });
            Ok(serde_json::to_string_pretty(&output)?)
        } else {
            let output = json!({
                "notebook": result.notebook,
                "matches": result.matches,
                "total": result.matches.len(),
            });
            Ok(serde_json::to_string_pretty(&output)?)
        }
    }

    fn format_results(&self, results: &[GrepResult]) -> Result<String> {
        let total_matches: usize = results.iter().map(|r| r.matches.len()).sum();

        if self.options.count_mode {
            let counts: Vec<_> = results
                .iter()
                .map(|r| {
                    json!({
                        "notebook": r.notebook,
                        "count": r.matches.len(),
                    })
                })
                .collect();

            let output = json!({
                "counts": counts,
                "total_notebooks": results.len(),
                "total_matches": total_matches,
            });
            Ok(serde_json::to_string_pretty(&output)?)
        } else {
            let output = json!({
                "results": results,
                "total_notebooks": results.len(),
                "total_matches": total_matches,
            });
            Ok(serde_json::to_string_pretty(&output)?)
        }
    }
}