package Messages

import (
	"encoding/json"
	"net/http"

	"github.com/gofrs/uuid"

	"git.tovijaeschke.xyz/tovi/Envelope/Backend/Database"
)

type rawUpdateConversationData struct {
	ID                string                            `json:"id"`
	Name              string                            `json:"name"`
	Users             []Database.ConversationDetailUser `json:"users"`
	UserConversations Database.UserConversationList     `json:"user_conversations"`
}

// UpdateConversation updates the conversation data, such as title, users, etc
func UpdateConversation(w http.ResponseWriter, r *http.Request) {
	var (
		rawConversationData rawUpdateConversationData
		messageThread       Database.ConversationDetail
		err                 error
	)

	err = json.NewDecoder(r.Body).Decode(&rawConversationData)
	if err != nil {
		http.Error(w, "Error", http.StatusInternalServerError)
		return
	}

	messageThread = Database.ConversationDetail{
		Base: Database.Base{
			ID: uuid.FromStringOrNil(rawConversationData.ID),
		},
		Name:  rawConversationData.Name,
		Users: rawConversationData.Users,
	}

	err = (&messageThread).UpdateConversationDetail()
	if err != nil {
		http.Error(w, "Error", http.StatusInternalServerError)
		return
	}

	if len(rawConversationData.UserConversations) > 0 {
		err = (&rawConversationData.UserConversations).UpdateOrCreateUserConversations()
		if err != nil {
			http.Error(w, "Error", http.StatusInternalServerError)
			return
		}
	}

	w.WriteHeader(http.StatusNoContent)
}