package widget

import (
	"html/template"
	"net/http"

	"go.uber.org/fx"

	"payouts/internal/service/yookassa"
	yookassaConf "payouts/internal/service/yookassa/config"
	"payouts/internal/templates"
)

const WidgetPage = "/payout/widget"

type Handler interface {
	WidgetHandler(http.ResponseWriter, *http.Request)
}

type widgetHandler struct {
	template *template.Template
	config   yookassaConf.YooKassa
}

// Params represents the module input params
type Params struct {
	fx.In

	YookassaService yookassa.Service
}

func NewWidgetHandler(p Params) (Handler, error) {
	return &widgetHandler{
		template: templates.Templates,
		config:   p.YookassaService.GetConfig(),
	}, nil
}

// WidgetHandler renders the payouts widget page
func (h *widgetHandler) WidgetHandler(w http.ResponseWriter, r *http.Request) {
	data := struct {
		ApiPayoutKey string
		WidgetVersion string
	}{
		ApiPayoutKey: h.config.ApiPayoutKey,
		WidgetVersion: h.config.WidgetVersion,
	}

	w.Header().Set("Content-Type", "text/html; charset=utf-8")
	err := h.template.ExecuteTemplate(w, "payouts-widget.html", data)
	if err != nil {
		http.Error(w, "internal error", http.StatusInternalServerError)
		return
	}
}