package httpapi

import (
	"errors"
	"net/http"
	"strings"

	"github.com/descrybe/descrybe-v2/apps/api/internal/seo"
	"github.com/google/uuid"
)

func (s *Server) handleSEORecommendations(w http.ResponseWriter, r *http.Request) {
	cid, ok := CompanyIDFromContext(r.Context())
	if !ok || cid == uuid.Nil {
		Error(w, http.StatusUnauthorized, "unauthorized")
		return
	}
	if s.SEO == nil {
		Error(w, http.StatusServiceUnavailable, "seo service unavailable")
		return
	}
	report, err := s.SEO.Recommendations(r.Context(), cid)
	if err != nil {
		Error(w, http.StatusInternalServerError, "seo analysis failed")
		return
	}
	JSON(w, http.StatusOK, report)
}

func (s *Server) handleSEOApply(w http.ResponseWriter, r *http.Request) {
	cid, ok := CompanyIDFromContext(r.Context())
	if !ok || cid == uuid.Nil {
		Error(w, http.StatusUnauthorized, "unauthorized")
		return
	}
	if s.SEO == nil {
		Error(w, http.StatusServiceUnavailable, "seo service unavailable")
		return
	}

	var body seo.ApplyRequest
	if err := DecodeJSON(r, &body); err != nil {
		Error(w, http.StatusBadRequest, "invalid json")
		return
	}
	productID, err := uuid.Parse(strings.TrimSpace(body.ProductID))
	if err != nil {
		Error(w, http.StatusBadRequest, "invalid product_id")
		return
	}

	result, err := s.SEO.Apply(r.Context(), cid, productID, body.Mode)
	if err != nil {
		switch {
		case writePlanGate(w, err):
			return
		case errors.Is(err, seo.ErrNotFound):
			Error(w, http.StatusNotFound, "not found")
			return
		default:
			ClientOrLog(w, http.StatusBadRequest, "seo apply failed", err, seo.ClientError)
			return
		}
	}
	JSON(w, http.StatusOK, result)
}