package handler

import (
	"fmt"
	"net/http"

	"github.com/google/uuid"

	"git.kundeng.us/phoenix/textsender-api/internal/store"
	"git.kundeng.us/phoenix/textsender-models/pkg/message"
)

type RequestAddMessage struct {
	Content string    `json:"content"`
	UserId  uuid.UUID `json:"user_id"`
}

type AddMessageResponse struct {
	Message string            `json:"message"`
	Data    []message.Message `json:"data"`
}

type MessageHandler struct {
	MessageStore store.MessageStore
}

func NewMessageHandler(str store.MessageStore) *MessageHandler {
	return &MessageHandler{MessageStore: str}
}

func (m *MessageHandler) AddMessage(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	var req RequestAddMessage
	if err := ExtractFromRequest(r, &req); err != nil {
		http.Error(w, "Invalid JSON: "+err.Error(), http.StatusBadRequest)
	}
	defer r.Body.Close()

	newMessage := message.Message{Content: req.Content, UserId: req.UserId}

	var statusCode int
	var resp AddMessageResponse

	ctx := r.Context()

	if exists, err := m.MessageStore.MessageExists(ctx, &newMessage); err != nil {
		fmt.Println("Error: ", err)
		statusCode = http.StatusInternalServerError
		resp.Message = err.Error()
	} else {
		if exists {
			statusCode = http.StatusBadRequest
			resp.Message = "Cannot create message"
		} else {
			if err = m.MessageStore.CreateMessage(ctx, &newMessage); err != nil {
				fmt.Println("Error:", err)
				statusCode = http.StatusInternalServerError
				resp.Message = err.Error()
			} else {
				statusCode = http.StatusCreated
				resp.Message = "Message created"
				resp.Data = append(resp.Data, newMessage)
			}
		}
	}

	RespondWithJSON(w, statusCode, &resp)
}