//! Merge operations — rebases agent work onto master and runs post-merge validation.

use serde::Serialize;

mod conflicts;
mod squash;

pub(crate) use squash::{cleanup_merge_workspace, run_squash_merge};

/// Status of an async merge job.
#[derive(Debug, Clone, Serialize)]
pub enum MergeJobStatus {
    Running,
    Completed(MergeReport),
    Failed(String),
}

/// Tracks a background merge job started by `merge_agent_work`.
#[derive(Debug, Clone, Serialize)]
pub struct MergeJob {
    pub story_id: String,
    pub status: MergeJobStatus,
}

/// Result of a mergemaster merge operation.
#[derive(Debug, Serialize, Clone)]
pub struct MergeReport {
    pub story_id: String,
    pub success: bool,
    pub had_conflicts: bool,
    /// `true` when conflicts were detected but automatically resolved.
    pub conflicts_resolved: bool,
    pub conflict_details: Option<String>,
    pub gates_passed: bool,
    pub gate_output: String,
    pub worktree_cleaned_up: bool,
    pub story_archived: bool,
}

/// Result of a squash-merge operation.
pub(crate) struct SquashMergeResult {
    pub(crate) success: bool,
    pub(crate) had_conflicts: bool,
    /// `true` when conflicts were detected but automatically resolved.
    pub(crate) conflicts_resolved: bool,
    pub(crate) conflict_details: Option<String>,
    pub(crate) output: String,
    /// Whether quality gates ran and passed.  `false` when `success` is `false`
    /// due to a gate failure; callers can use this to distinguish gate failures
    /// from merge/commit/FF failures in the `MergeReport`.
    pub(crate) gates_passed: bool,
}