package api

import (
	"database/sql"

	"github.com/thepeterstone/claudomator/internal/deployment"
	"github.com/thepeterstone/claudomator/internal/task"
)

// taskView wraps a task with computed fields that are derived from execution
// history and deployment state. It is used as the JSON response type for task
// list and get endpoints so that callers receive enriched data in one request.
type taskView struct {
	*task.Task
	Changestats      *task.Changestats  `json:"changestats,omitempty"`
	DeploymentStatus *deployment.Status `json:"deployment_status,omitempty"`
}

// enrichTask fetches the latest execution for the given task and attaches
// changestats and deployment_status fields for READY tasks.
// Non-READY tasks are returned without these extra fields.
func (s *Server) enrichTask(tk *task.Task) *taskView {
	view := &taskView{Task: tk}

	if tk.State != task.StateReady {
		return view
	}

	exec, err := s.store.GetLatestExecution(tk.ID)
	if err != nil {
		if err == sql.ErrNoRows {
			// No execution yet — still include deployment status (empty commits).
			view.DeploymentStatus = deployment.Check(nil, tk.Agent.ProjectDir)
		}
		return view
	}

	view.Changestats = exec.Changestats
	view.DeploymentStatus = deployment.Check(exec.Commits, tk.Agent.ProjectDir)
	return view
}