package handler

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

	"github.com/go-chi/chi/v5"

	"financeiro-carvalho/internal/service"
)

type GameHandler struct {
	svc *service.GameService
}

func NewGameHandler(svc *service.GameService) *GameHandler {
	return &GameHandler{svc: svc}
}

func (h *GameHandler) Summary(w http.ResponseWriter, r *http.Request) {
	s, err := h.svc.GetSummary(r.Context())
	if err != nil {
		respondError(w, http.StatusInternalServerError, "failed to get game summary")
		return
	}
	respondJSON(w, http.StatusOK, s)
}

func (h *GameHandler) AwardXP(w http.ResponseWriter, r *http.Request) {
	var body struct {
		EventType   string `json:"event_type"`
		Amount      int    `json:"amount"`
		Description string `json:"description"`
	}
	if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
		respondError(w, http.StatusBadRequest, "invalid JSON")
		return
	}
	p, err := h.svc.AwardXP(r.Context(), body.EventType, body.Amount, body.Description)
	if err != nil {
		respondError(w, http.StatusInternalServerError, "failed to award xp")
		return
	}
	respondJSON(w, http.StatusOK, p)
}

func (h *GameHandler) ClaimQuest(w http.ResponseWriter, r *http.Request) {
	id, err := strconv.Atoi(chi.URLParam(r, "id"))
	if err != nil {
		respondError(w, http.StatusBadRequest, "invalid id")
		return
	}
	if err := h.svc.ClaimQuest(r.Context(), id); err != nil {
		respondError(w, http.StatusBadRequest, err.Error())
		return
	}
	w.WriteHeader(http.StatusNoContent)
}

func (h *GameHandler) Achievements(w http.ResponseWriter, r *http.Request) {
	list, err := h.svc.ListAllAchievements(r.Context())
	if err != nil {
		respondError(w, http.StatusInternalServerError, "failed to list achievements")
		return
	}
	respondJSON(w, http.StatusOK, list)
}

func (h *GameHandler) Cosmetics(w http.ResponseWriter, r *http.Request) {
	list, err := h.svc.ListCosmetics(r.Context())
	if err != nil {
		respondError(w, http.StatusInternalServerError, "failed to list cosmetics")
		return
	}
	respondJSON(w, http.StatusOK, list)
}

func (h *GameHandler) EquipCosmetic(w http.ResponseWriter, r *http.Request) {
	id, err := strconv.Atoi(chi.URLParam(r, "id"))
	if err != nil {
		respondError(w, http.StatusBadRequest, "invalid id")
		return
	}
	if err := h.svc.EquipCosmetic(r.Context(), id); err != nil {
		respondError(w, http.StatusInternalServerError, "failed to equip cosmetic")
		return
	}
	w.WriteHeader(http.StatusNoContent)
}