use anyhow::Result;
use colored::*;

use crate::config::TealConfig;
use crate::DevCommands;

pub async fn run(cmd: DevCommands, config: &TealConfig) -> Result<()> {
    match cmd {
        DevCommands::Setup {
            skip_docker,
            skip_db,
        } => setup_dev_environment(skip_docker, skip_db, config).await,
        DevCommands::Clean { all } => clean_dev_artifacts(all).await,
        DevCommands::Dev { port, watch } => run_dev_server(port, watch, config).await,
        DevCommands::Seed { count, data_type } => generate_seed_data(count, data_type, config).await,
    }
}

async fn setup_dev_environment(
    skip_docker: bool,
    skip_db: bool,
    config: &TealConfig,
) -> Result<()> {
    println!("{} Setting up development environment...", "🛠️".blue());
    println!();

    if !skip_docker {
        println!("{} Docker Setup:", "🐳".blue());
        println!("  {} Checking Docker...", "•".bold());

        // TODO: Check if Docker is installed and running
        println!("    {} Docker check not implemented", "⚠️".yellow());
        println!("    {} Manually ensure Docker is running", "💡".blue());
        println!();
    }

    if !skip_db {
        println!("{} Database Setup:", "🗄️".blue());
        println!("  {} Database URL: {}", "•".bold(), mask_db_url(&config.database.url));

        // TODO: Run database initialization and migrations
        println!("    {} Database setup not implemented", "⚠️".yellow());
        println!("    {} Run: teal database init", "💡".blue());
        println!("    {} Run: teal database migrate", "💡".blue());
        println!();
    }

    println!("{} Keys Setup:", "🔐".blue());
    let key_path = config.get_key_path(&config.crypto.default_key_name);
    if key_path.exists() {
        println!("  {} Default key already exists", "✅".green());
    } else {
        println!("  {} Generating default key...", "•".bold());
        // TODO: Auto-generate key
        println!("    {} Run: teal crypto gen-key", "💡".blue());
    }
    println!();

    println!("{} Development environment setup complete!", "✅".green());
    println!();
    println!("{} Next steps:", "💡".yellow());
    println!("  1. teal crypto gen-key --name dev");
    println!("  2. teal database init");
    println!("  3. teal dev dev --watch");

    Ok(())
}

async fn clean_dev_artifacts(all: bool) -> Result<()> {
    println!("{} Cleaning development artifacts...", "🧹".blue());
    println!();

    let mut cleaned_items = Vec::new();

    // Clean logs
    if let Ok(entries) = std::fs::read_dir("logs") {
        let mut log_count = 0;
        for entry in entries.flatten() {
            if entry.path().extension().map_or(false, |ext| ext == "log") {
                // TODO: Actually delete log files
                log_count += 1;
            }
        }
        if log_count > 0 {
            cleaned_items.push(format!("{} log files", log_count));
        }
    }

    // Clean temporary files
    if let Ok(entries) = std::fs::read_dir(".") {
        let mut temp_count = 0;
        for entry in entries.flatten() {
            let path = entry.path();
            if let Some(name) = path.file_name().and_then(|n| n.to_str()) {
                if name.starts_with("tmp_") || name.ends_with(".tmp") {
                    temp_count += 1;
                }
            }
        }
        if temp_count > 0 {
            cleaned_items.push(format!("{} temporary files", temp_count));
        }
    }

    if all {
        // Clean build artifacts
        cleaned_items.push("build artifacts".to_string());
        println!("  {} Would clean: target/ directory", "•".bold());

        // Clean Docker artifacts
        cleaned_items.push("Docker artifacts".to_string());
        println!("  {} Would clean: Docker images and containers", "•".bold());
    }

    if cleaned_items.is_empty() {
        println!("{} No artifacts to clean", "ℹ️".blue