use serde::{Deserialize, Serialize};
use tauri::AppHandle;
use uuid::Uuid;

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct HistoryEntry {
    pub id: String,
    pub tab_id: String,
    pub url: String,
    pub title: String,
    pub visited_at: i64,
}

const HISTORY_FILE: &str = "browser_history.json";

pub fn record_visit(app: &AppHandle, tab_id: String, url: String, title: String) -> Result<(), String> {
    if url.is_empty() || url == "about:blank" || url.starts_with("muse-action://") { return Ok(()); }
    let mut entries: Vec<HistoryEntry> = crate::persistence::load_json(app, HISTORY_FILE).unwrap_or_default();
    let now = chrono::Utc::now().timestamp();
    if let Some(last) = entries.first() {
        if last.url == url && now - last.visited_at < 3 { return Ok(()); }
    }
    entries.insert(0, HistoryEntry { id: Uuid::new_v4().to_string(), tab_id, url, title, visited_at: now });
    entries.truncate(5000);
    crate::persistence::save_json(app, HISTORY_FILE, &entries)
}

#[tauri::command]
pub fn history_list(app: AppHandle, limit: Option<usize>) -> Result<Vec<HistoryEntry>, String> {
    let mut entries: Vec<HistoryEntry> = crate::persistence::load_json(&app, HISTORY_FILE).unwrap_or_default();
    entries.truncate(limit.unwrap_or(250).min(5000));
    Ok(entries)
}

#[tauri::command]
pub fn history_clear(app: AppHandle) -> Result<(), String> {
    crate::persistence::save_json(&app, HISTORY_FILE, &Vec::<HistoryEntry>::new())
}