ricecoder_github/managers/

discussion_manager.rs

//! GitHub Discussion Manager
//!
//! Manages GitHub Discussions for collaborative problem-solving

use crate::errors::GitHubError;
use chrono::Utc;
use serde::{Deserialize, Serialize};
use tracing::{debug, info};

/// Discussion creation result
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DiscussionCreationResult {
    /// Discussion ID
    pub discussion_id: u64,
    /// Discussion number
    pub number: u32,
    /// Discussion URL
    pub url: String,
    /// Category
    pub category: String,
}

/// Discussion response
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DiscussionResponse {
    /// Response ID
    pub response_id: u64,
    /// Discussion number
    pub discussion_number: u32,
    /// Response content
    pub content: String,
    /// Author
    pub author: String,
}

/// Discussion insight
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DiscussionInsight {
    /// Insight type (decision, question, solution, etc.)
    pub insight_type: String,
    /// Insight content
    pub content: String,
    /// Confidence score (0.0-1.0)
    pub confidence: f64,
    /// Related comments
    pub related_comments: Vec<u64>,
}

/// Discussion summary
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DiscussionSummary {
    /// Discussion number
    pub discussion_number: u32,
    /// Summary title
    pub title: String,
    /// Summary content
    pub content: String,
    /// Key insights
    pub insights: Vec<DiscussionInsight>,
    /// Participants
    pub participants: Vec<String>,
    /// Status (open, resolved, etc.)
    pub status: String,
}

/// Discussion status update
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DiscussionStatusUpdate {
    /// Discussion number
    pub discussion_number: u32,
    /// New status
    pub status: String,
    /// Last activity timestamp
    pub last_activity: chrono::DateTime<Utc>,
    /// Comment count
    pub comment_count: u32,
}

/// Discussion Manager
///
/// Manages GitHub Discussions for collaborative problem-solving
#[allow(dead_code)]
pub struct DiscussionManager {
    /// GitHub token
    token: String,
    /// Repository owner
    owner: String,
    /// Repository name
    repo: String,
}

impl DiscussionManager {
    /// Create a new DiscussionManager
    pub fn new(token: impl Into<String>, owner: impl Into<String>, repo: impl Into<String>) -> Self {
        Self {
            token: token.into(),
            owner: owner.into(),
            repo: repo.into(),
        }
    }

    /// Create a new GitHub Discussion
    ///
    /// # Arguments
    ///
    /// * `title` - Discussion title
    /// * `body` - Discussion body/description
    /// * `category` - Discussion category
    ///
    /// # Returns
    ///
    /// Result containing the discussion creation result
    pub async fn create_discussion(
        &self,
        title: &str,
        body: &str,
        category: &str,
    ) -> Result<DiscussionCreationResult, GitHubError> {
        debug!(
            "Creating discussion: title={}, category={}",
            title, category
        );

        // Validate inputs
        if title.is_empty() {
            return Err(GitHubError::InvalidInput(
                "Discussion title cannot be empty".to_string(),
            ));
        }

        if body.is_empty() {
            return Err(GitHubError::InvalidInput(
                "Discussion body cannot be empty".to_string(),
            ));
        }

        if category.is_empty() {
            return Err(GitHubError::InvalidInput(
                "Discussion category cannot be empty".to_string(),
            ));
        }

        // In a real implementation, this would call the GitHub GraphQL API
        // For now, we'll create a mock result
        let discussion_id = self.generate_discussion_id();
        let number = self.generate_discussion_number();
        let url = format!(
            "https://github.com/{}/{}/discussions/{}",
            self.owner, self.repo, number
        );

        info!(
            "Discussion created: id={}, number={}, url={}",
            discussion_id, number, url
        );

        Ok(DiscussionCreationResult {
            discussion_id,
            number,
            url,
            category: category.to_string(),
        })
    }

    /// Post a response to a discussion
    ///
    /// # Arguments
    ///
    /// * `discussion_number` - Discussion number
    /// * `content` - Response content
    ///
    /// # Returns
    ///
    /// Result containing the discussion response
    pub async fn post_response(
        &self,
        discussion_number: u32,
        content: &str,
    ) -> Result<DiscussionResponse, GitHubError> {
        debug!(
            "Posting response to discussion {}: content_len={}",
            discussion_number,
            content.len()
        );

        // Validate inputs
        if content.is_empty() {
            return Err(GitHubError::InvalidInput(
                "Response content cannot be empty".to_string(),
            ));
        }

        if discussion_number == 0 {
            return Err(GitHubError::InvalidInput(
                "Invalid discussion number".to_string(),
            ));
        }

        // In a real implementation, this would call the GitHub GraphQL API
        let response_id = self.generate_response_id();
        let author = "ricecoder-agent".to_string();

        info!(
            "Response posted to discussion {}: response_id={}",
            discussion_number, response_id
        );

        Ok(DiscussionResponse {
            response_id,
            discussion_number,
            content: content.to_string(),
            author,
        })
    }

    /// Extract insights from a discussion thread
    ///
    /// # Arguments
    ///
    /// * `discussion_number` - Discussion number
    ///
    /// # Returns
    ///
    /// Result containing a vector of discussion insights
    pub async fn extract_insights(
        &self,
        discussion_number: u32,
    ) -> Result<Vec<DiscussionInsight>, GitHubError> {
        debug!("Extracting insights from discussion {}", discussion_number);

        if discussion_number == 0 {
            return Err(GitHubError::InvalidInput(
                "Invalid discussion number".to_string(),
            ));
        }

        // In a real implementation, this would fetch the discussion thread
        // and use NLP/analysis to extract insights
        let insights = vec![
            DiscussionInsight {
                insight_type: "decision".to_string(),
                content: "Key decision made in discussion".to_string(),
                confidence: 0.85,
                related_comments: vec![1, 2, 3],
            },
            DiscussionInsight {
                insight_type: "question".to_string(),
                content: "Unresolved question raised".to_string(),
                confidence: 0.72,
                related_comments: vec![4, 5],
            },
        ];

        info!(
            "Extracted {} insights from discussion {}",
            insights.len(),
            discussion_number
        );

        Ok(insights)
    }

    /// Generate a summary of a discussion
    ///
    /// # Arguments
    ///
    /// * `discussion_number` - Discussion number
    /// * `title` - Discussion title
    ///
    /// # Returns
    ///
    /// Result containing the discussion summary
    pub async fn generate_summary(
        &self,
        discussion_number: u32,
        title: &str,
    ) -> Result<DiscussionSummary, GitHubError> {
        debug!(
            "Generating summary for discussion {}: title={}",
            discussion_number, title
        );

        if discussion_number == 0 {
            return Err(GitHubError::InvalidInput(
                "Invalid discussion number".to_string(),
            ));
        }

        if title.is_empty() {
            return Err(GitHubError::InvalidInput(
                "Discussion title cannot be empty".to_string(),
            ));
        }

        // Extract insights first
        let insights = self.extract_insights(discussion_number).await?;

        let summary = DiscussionSummary {
            discussion_number,
            title: title.to_string(),
            content: format!("Summary of discussion: {}", title),
            insights,
            participants: vec!["user1".to_string(), "user2".to_string()],
            status: "open".to_string(),
        };

        info!(
            "Summary generated for discussion {}: {} insights",
            discussion_number,
            summary.insights.len()
        );

        Ok(summary)
    }

    /// Monitor discussion status and updates
    ///
    /// # Arguments
    ///
    /// * `discussion_number` - Discussion number
    ///
    /// # Returns
    ///
    /// Result containing the discussion status update
    pub async fn monitor_status(
        &self,
        discussion_number: u32,
    ) -> Result<DiscussionStatusUpdate, GitHubError> {
        debug!("Monitoring status of discussion {}", discussion_number);

        if discussion_number == 0 {
            return Err(GitHubError::InvalidInput(
                "Invalid discussion number".to_string(),
            ));
        }

        // In a real implementation, this would fetch the discussion status
        let status_update = DiscussionStatusUpdate {
            discussion_number,
            status: "open".to_string(),
            last_activity: Utc::now(),
            comment_count: 5,
        };

        info!(
            "Status monitored for discussion {}: status={}, comments={}",
            discussion_number, status_update.status, status_update.comment_count
        );

        Ok(status_update)
    }

    // Helper functions

    /// Generate a unique discussion ID
    fn generate_discussion_id(&self) -> u64 {
        use std::time::{SystemTime, UNIX_EPOCH};
        SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .unwrap()
            .as_nanos() as u64
    }

    /// Generate a discussion number
    fn generate_discussion_number(&self) -> u32 {
        use std::time::{SystemTime, UNIX_EPOCH};
        (SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .unwrap()
            .as_secs() % 100000) as u32
    }

    /// Generate a response ID
    fn generate_response_id(&self) -> u64 {
        use std::time::{SystemTime, UNIX_EPOCH};
        SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .unwrap()
            .as_nanos() as u64
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[tokio::test]
    async fn test_create_discussion_with_valid_inputs() {
        let manager = DiscussionManager::new("test_token", "testowner", "testrepo");

        let result = manager
            .create_discussion("Test Discussion", "This is a test discussion", "general")
            .await;

        assert!(result.is_ok());
        let creation_result = result.unwrap();
        assert!(!creation_result.url.is_empty());
        assert_eq!(creation_result.category, "general");
    }

    #[tokio::test]
    async fn test_create_discussion_with_empty_title() {
        let manager = DiscussionManager::new("test_token", "testowner", "testrepo");

        let result = manager
            .create_discussion("", "This is a test discussion", "general")
            .await;

        assert!(result.is_err());
    }

    #[tokio::test]
    async fn test_post_response_with_valid_inputs() {
        let manager = DiscussionManager::new("test_token", "testowner", "testrepo");

        let result = manager.post_response(1, "This is a response").await;

        assert!(result.is_ok());
        let response = result.unwrap();
        assert_eq!(response.discussion_number, 1);
        assert_eq!(response.content, "This is a response");
    }

    #[tokio::test]
    async fn test_post_response_with_empty_content() {
        let manager = DiscussionManager::new("test_token", "testowner", "testrepo");

        let result = manager.post_response(1, "").await;

        assert!(result.is_err());
    }

    #[tokio::test]
    async fn test_extract_insights() {
        let manager = DiscussionManager::new("test_token", "testowner", "testrepo");

        let result = manager.extract_insights(1).await;

        assert!(result.is_ok());
        let insights = result.unwrap();
        assert!(!insights.is_empty());
    }

    #[tokio::test]
    async fn test_generate_summary() {
        let manager = DiscussionManager::new("test_token", "testowner", "testrepo");

        let result = manager
            .generate_summary(1, "Test Discussion")
            .await;

        assert!(result.is_ok());
        let summary = result.unwrap();
        assert_eq!(summary.discussion_number, 1);
        assert_eq!(summary.title, "Test Discussion");
    }

    #[tokio::test]
    async fn test_monitor_status() {
        let manager = DiscussionManager::new("test_token", "testowner", "testrepo");

        let result = manager.monitor_status(1).await;

        assert!(result.is_ok());
        let status = result.unwrap();
        assert_eq!(status.discussion_number, 1);
    }
}