// cli/agent.rs — agent subcommand handlers

use crate::store;
use crate::store::StoreView;

pub fn cmd_consolidate_batch(count: usize, auto: bool, agent: Option<String>) -> Result<(), String> {
    let store = store::Store::load()?;

    if let Some(agent_name) = agent {
        let batch = crate::agents::prompts::agent_prompt(&store, &agent_name, count)?;
        println!("{}", batch.prompt);
        Ok(())
    } else {
        crate::agents::prompts::consolidation_batch(&store, count, auto)
    }
}

pub fn cmd_replay_queue(count: usize) -> Result<(), String> {
    let store = store::Store::load()?;
    let queue = crate::neuro::replay_queue(&store, count);
    println!("Replay queue ({} items):", queue.len());
    for (i, item) in queue.iter().enumerate() {
        println!("  {:2}. [{:.3}] {:>10}  {} (interval={}d, emotion={:.1}, spectral={:.1})",
            i + 1, item.priority, item.classification, item.key,
            item.interval_days, item.emotion, item.outlier_score);
    }
    Ok(())
}

pub fn cmd_consolidate_session() -> Result<(), String> {
    let store = store::Store::load()?;
    let plan = crate::neuro::consolidation_plan(&store);
    println!("{}", crate::neuro::format_plan(&plan));
    Ok(())
}

pub fn cmd_consolidate_full() -> Result<(), String> {
    let mut store = store::Store::load()?;
    crate::consolidate::consolidate_full(&mut store)
}

pub fn cmd_digest_links(do_apply: bool) -> Result<(), String> {
    let store = store::Store::load()?;
    let links = crate::digest::parse_all_digest_links(&store);
    drop(store);
    println!("Found {} unique links from digest nodes", links.len());

    if !do_apply {
        for (i, link) in links.iter().enumerate() {
            println!("  {:3}. {} → {}", i + 1, link.source, link.target);
            if !link.reason.is_empty() {
                println!("       ({})", &link.reason[..link.reason.len().min(80)]);
            }
        }
        println!("\nTo apply: poc-memory digest-links --apply");
        return Ok(());
    }

    let mut store = store::Store::load()?;
    let (applied, skipped, fallbacks) = crate::digest::apply_digest_links(&mut store, &links);
    println!("\nApplied: {} ({} file-level fallbacks)  Skipped: {}", applied, fallbacks, skipped);
    Ok(())
}

pub fn cmd_journal_enrich(jsonl_path: &str, entry_text: &str, grep_line: usize) -> Result<(), String> {
    if !std::path::Path::new(jsonl_path).is_file() {
        return Err(format!("JSONL not found: {}", jsonl_path));
    }

    let mut store = store::Store::load()?;
    crate::enrich::journal_enrich(&mut store, jsonl_path, entry_text, grep_line)
}

pub fn cmd_apply_consolidation(do_apply: bool, report_file: Option<&str>) -> Result<(), String> {
    let mut store = store::Store::load()?;
    crate::consolidate::apply_consolidation(&mut store, do_apply, report_file)
}

pub fn cmd_knowledge_loop(max_cycles: usize, batch_size: usize, window: usize, max_depth: i32) -> Result<(), String> {
    let config = crate::knowledge::KnowledgeLoopConfig {
        max_cycles,
        batch_size,
        window,
        max_depth,
        ..Default::default()
    };

    let results = crate::knowledge::run_knowledge_loop(&config)?;
    eprintln!("\nCompleted {} cycles, {} total actions applied",
        results.len(),
        results.iter().map(|r| r.total_applied).sum::<usize>());
    Ok(())
}

pub fn cmd_fact_mine(path: &str, batch: bool, dry_run: bool, output_file: Option<&str>, min_messages: usize) -> Result<(), String> {
    let p = std::path::Path::new(path);

    let paths: Vec<std::path::PathBuf> = if batch {
        if !p.is_dir() {
            return Err(format!("Not a directory: {}", path));
        }
        let mut files: Vec<_> = std::fs::read_dir(p)
            .map_err(|e| format!("read dir: {}", e))?
            .filter_map(|e| e.ok())
            .map(|e| e.path())
            .filter(|p| p.extension().map(|x| x == "jsonl").unwrap_or(false))
            .collect();
        files.sort();
        eprintln!("Found {} transcripts", files.len());
        files
    } else {
        vec![p.to_path_buf()]
    };

    let path_refs: Vec<&std::path::Path> = paths.iter().map(|p| p.as_path()).collect();
    let facts = crate::fact_mine::mine_batch(&path_refs, min_messages, dry_run)?;

    if !dry_run {
        let json = serde_json::to_string_pretty(&facts)
            .map_err(|e| format!("serialize: {}", e))?;
        if let Some(out) = output_file {
            std::fs::write(out, &json).map_err(|e| format!("write: {}", e))?;
            eprintln!("\nWrote {} facts to {}", facts.len(), out);
        } else {
            println!("{}", json);
        }
    }

    eprintln!("\nTotal: {} facts from {} transcripts", facts.len(), paths.len());
    Ok(())
}

pub fn cmd_fact_mine_store(path: &str) -> Result<(), String> {
    let path = std::path::Path::new(path);
    if !path.exists() {
        return Err(format!("File not found: {}", path.display()));
    }
    let count = crate::fact_mine::mine_and_store(path, None)?;
    eprintln!("Stored {} facts", count);
    Ok(())
}