// tool/agent.go – Tool-Agent: Dispatcher für externe Tools (Email, ...)
package tool

import (
	"fmt"

	"my-brain-importer/internal/agents"
	"my-brain-importer/internal/agents/tool/email"
)

// Agent verteilt Tool-Anfragen an spezialisierte Sub-Agenten.
type Agent struct{}

func New() *Agent { return &Agent{} }

// Handle unterstützt: email
func (a *Agent) Handle(req agents.Request) agents.Response {
	switch req.Action {
	case agents.ActionEmail:
		return a.handleEmail(req)
	default:
		return agents.Response{Text: "❌ Unbekannte Tool-Aktion. Verfügbar: email"}
	}
}

func (a *Agent) handleEmail(req agents.Request) agents.Response {
	subAction := agents.ActionEmailSummary
	if len(req.Args) > 0 {
		subAction = req.Args[0]
	}

	var (
		result string
		err    error
	)

	switch subAction {
	case agents.ActionEmailSummary:
		result, err = email.Summarize()
	case agents.ActionEmailUnread:
		result, err = email.SummarizeUnread()
	case agents.ActionEmailRemind:
		result, err = email.ExtractReminders()
	default:
		return agents.Response{Text: fmt.Sprintf("❌ Unbekannte Email-Aktion `%s`. Verfügbar: summary, unread, remind", subAction)}
	}

	if err != nil {
		return agents.Response{Error: err, Text: fmt.Sprintf("❌ Email-Fehler: %v", err)}
	}
	return agents.Response{Text: "📧 **Email-Analyse:**\n\n" + result}
}