use std::env;
use crate::meta_plugin::{MetaPlugin, MetaPluginType};

#[derive(Debug, Clone, Default)]
pub struct CwdMetaPlugin {
    is_finalized: bool,
    base: crate::meta_plugin::BaseMetaPlugin,
}

impl CwdMetaPlugin {
    pub fn new(
        options: Option<std::collections::HashMap<String, serde_yaml::Value>>,
        outputs: Option<std::collections::HashMap<String, serde_yaml::Value>>,
    ) -> CwdMetaPlugin {
        let mut base = crate::meta_plugin::BaseMetaPlugin::new();
        
        // Set default outputs
        let default_outputs = vec!["cwd".to_string()];
        for output_name in default_outputs {
            base.outputs.insert(output_name.clone(), serde_yaml::Value::String(output_name));
        }
        
        // Apply provided options and outputs
        if let Some(opts) = options {
            for (key, value) in opts {
                base.options.insert(key, value);
            }
        }
        if let Some(outs) = outputs {
            for (key, value) in outs {
                base.outputs.insert(key, value);
            }
        }
        
        CwdMetaPlugin {
            is_finalized: false,
            base,
        }
    }
    
}

impl MetaPlugin for CwdMetaPlugin {
    fn is_finalized(&self) -> bool {
        self.is_finalized
    }
    
    fn set_finalized(&mut self, finalized: bool) {
        self.is_finalized = finalized;
    }
    
    fn finalize(&mut self) -> crate::meta_plugin::MetaPluginResponse {
        // If already finalized, don't process again
        if self.is_finalized {
            return crate::meta_plugin::MetaPluginResponse {
                metadata: Vec::new(),
                is_finalized: true,
            };
        }
        
        // Mark as finalized
        self.is_finalized = true;
        
        crate::meta_plugin::MetaPluginResponse {
            metadata: Vec::new(),
            is_finalized: true,
        }
    }

    fn meta_type(&self) -> MetaPluginType {
        MetaPluginType::Cwd
    }
    
    fn initialize(&mut self) -> crate::meta_plugin::MetaPluginResponse {
        // If already finalized, don't process again
        if self.is_finalized {
            return crate::meta_plugin::MetaPluginResponse {
                metadata: Vec::new(),
                is_finalized: true,
            };
        }
        
        let mut metadata = Vec::new();
        let cwd = match env::current_dir() {
            Ok(path) => path.to_string_lossy().to_string(),
            Err(_) => "unknown".to_string(),
        };
        
        // Use process_metadata_outputs to handle output mapping
        if let Some(meta_data) = crate::meta_plugin::process_metadata_outputs(
            "cwd", 
            serde_yaml::Value::String(cwd), 
            self.base.outputs()
        ) {
            metadata.push(meta_data);
        }
        
        crate::meta_plugin::MetaPluginResponse {
            metadata,
            is_finalized: false,
        }
    }
    
    fn outputs(&self) -> &std::collections::HashMap<String, serde_yaml::Value> {
        self.base.outputs()
    }
    
    fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
        self.base.outputs_mut()
    }
    
    
    
    fn options(&self) -> &std::collections::HashMap<String, serde_yaml::Value> {
        self.base.options()
    }
    
    fn options_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
        self.base.options_mut()
    }
}