//! Parse Cursebreaker Resources from 10_3.unity Scene
//!
//! This example demonstrates:
//! 1. Parsing the Cursebreaker Unity project
//! 2. Finding Interactable_Resource components
//! 3. Extracting typeId and transform positions
//! 4. Writing resource data to an output file

use unity_parser::{UnityComponent, UnityFile};
use std::fs::File;
use std::io::Write;
use std::path::Path;

/// Interactable_Resource component from Cursebreaker
///
/// C# definition from Interactable_Resource.cs:
/// ```csharp
/// public class Interactable_Resource : Interactable
/// {
///     public int health;
///     public int maxHealth;
///     public int typeId;
///     // ... other fields
/// }
/// ```
#[derive(Debug, Clone, UnityComponent)]
#[unity_class("Interactable_Resource")]
pub struct InteractableResource {
    #[unity_field("maxHealth")]
    pub max_health: i64,

    #[unity_field("typeId")]
    pub type_id: i64,
}

fn main() -> Result<(), Box<dyn std::error::Error>> {
    println!("🎮 Cursebreaker - Resource Parser");
    println!("{}", "=".repeat(70));
    println!();

    let scene_path = Path::new("/home/connor/repos/CBAssets/_GameAssets/Scenes/Tiles/10_3.unity");

    // Check if scene exists
    if !scene_path.exists() {
        eprintln!("❌ Error: Scene not found at {}", scene_path.display());
        return Err("Scene file not found".into());
    }

    println!("📁 Parsing scene: {}", scene_path.display());
    println!();

    // Parse the scene
    match UnityFile::from_path(&scene_path) {
        Ok(UnityFile::Scene(scene)) => {
            println!("✅ Scene parsed successfully!");
            println!("   Total entities: {}", scene.entity_map.len());
            println!();

            // Get views for component types we need
            let resource_view = scene.world.borrow::<InteractableResource>();
            let transform_view = scene.world.borrow::<unity_parser::Transform>();
            let gameobject_view = scene.world.borrow::<unity_parser::GameObject>();

            // Find all entities that have Interactable_Resource
            let mut found_resources = Vec::new();

            for entity in scene.entity_map.values() {
                if let Some(resource) = resource_view.get(*entity) {
                    let transform = transform_view.get(*entity);
                    let game_object = gameobject_view.get(*entity);

                    let name = game_object
                        .and_then(|go| go.name())
                        .unwrap_or("(unnamed)");

                    let position = transform
                        .and_then(|t| t.local_position())
                        .map(|p| (p.x, p.y, p.z));

                    found_resources.push((name.to_string(), resource.clone(), position));
                }
            }

            println!("🔍 Found {} Interactable_Resource component(s)", found_resources.len());
            println!();

            if !found_resources.is_empty() {
                // Display resources in console
                for (name, resource, position) in &found_resources {
                    println!("  📦 Resource: \"{}\"", name);
                    println!("     • typeId: {}", resource.type_id);
                    println!("     • maxHealth: {}", resource.max_health);
                    if let Some((x, y, z)) = position {
                        println!("     • Position: ({:.2}, {:.2}, {:.2})", x, y, z);
                    } else {
                        println!("     • Position: (no transform)");
                    }
                    println!();
                }

                // Write to output file
                let output_path = "resources_output.txt";
                let mut output_file = File::create(output_path)?;

                writeln!(output_file, "Cursebreaker Resources - 10_3.unity Scene")?;
                writeln!(output_file, "{}", "=".repeat(70))?;
                writeln!(output_file)?;
                writeln!(output_file, "Total resources found: {}", found_resources.len())?;
                writeln!(output_file)?;
                writeln!(output_file, "{}", "-".repeat(70))?;
                writeln!(output_file)?;

                for (name, resource, position) in &found_resources {
                    writeln!(output_file, "Resource: {}", name)?;
                    writeln!(output_file, "  TypeID: {}", resource.type_id)?;
                    writeln!(output_file, "  MaxHealth: {}", resource.max_health)?;
                    if let Some((x, y, z)) = position {
                        writeln!(output_file, "  Position: ({:.6}, {:.6}, {:.6})", x, y, z)?;
                    } else {
                        writeln!(output_file, "  Position: N/A")?;
                    }
                    writeln!(output_file)?;
                }

                writeln!(output_file, "{}", "=".repeat(70))?;
                writeln!(output_file, "End of resource data")?;

                println!("📝 Resource data written to: {}", output_path);
                println!();
            }

            println!("{}", "=".repeat(70));
            println!("✅ Parsing complete!");
            println!("{}", "=".repeat(70));
        }
        Ok(_) => {
            eprintln!("❌ Error: File is not a scene");
            return Err("Not a Unity scene file".into());
        }
        Err(e) => {
            eprintln!("❌ Parse error: {}", e);
            return Err(Box::new(e));
        }
    }

    Ok(())
}