use std::path::Path;
use crate::error::AppError;
use crate::models::MissionPlan;

pub fn write_mission(path: &Path, mission: &MissionPlan) -> Result<(), AppError> {
    // Clear computed timing fields before saving
    let mut cleaned = mission.clone();
    for task in &mut cleaned.tasks {
        task.duration_minutes = 0.0;
        task.estimated_duration_minutes = 0.0;
        task.start_time = Some("".to_string());
        task.end_time = Some("".to_string());
        for sub in &mut task.sub_tasks {
            sub.duration_minutes = 0.0;
            sub.estimated_duration_minutes = 0.0;
            sub.start_time = Some("".to_string());
            sub.end_time = Some("".to_string());
            if sub.capture_interval_seconds.is_none() { sub.capture_interval_seconds = Some(0); }
            if sub.exposure_time.is_none() { sub.exposure_time = Some(0); }
            if sub.frame_rate.is_none() { sub.frame_rate = Some(0); }
        }
    }
    let content = serde_json::to_string_pretty(&cleaned)?;
    let content = content
        .replace("\"durationMinutes\": 0.0", "\"durationMinutes\": \"\"")
        .replace("\"estimatedDurationMinutes\": 0.0", "\"estimatedDurationMinutes\": \"\"");
    std::fs::write(path, content)?;
    Ok(())
}