package errors

import (
	"fmt"
	"net/http"
	"os"

	templateHelpers "synlotto-website/internal/helpers/template"
	"synlotto-website/internal/models"

	"github.com/alexedwards/scs/v2"
	"github.com/gin-gonic/gin"
)

// RenderStatus renders web/templates/error/<status>.html inside layout.html.
func RenderStatus(c *gin.Context, sessions *scs.SessionManager, status int) {
	// Base context
	ctx := templateHelpers.TemplateContext(c.Writer, c.Request, models.TemplateData{})

	// Flash (SCS)
	if f := sessions.PopString(c.Request.Context(), "flash"); f != "" {
		ctx["Flash"] = f
	}

	// Use your finalized paths
	pagePath := fmt.Sprintf("web/templates/error/%d.html", status)
	if _, err := os.Stat(pagePath); err != nil {
		c.String(status, http.StatusText(status))
		return
	}

	// Keep your "layout first" load order
	tmpl := templateHelpers.LoadTemplateFiles(
		"web/templates/layout.html",
		pagePath,
	)

	c.Status(status)
	if err := tmpl.ExecuteTemplate(c.Writer, "layout", ctx); err != nil {
		c.String(status, http.StatusText(status))
	}
}

// Adapters so bootstrap can wire these without lambdas everywhere.
func NoRoute(sessions *scs.SessionManager) gin.HandlerFunc {
	return func(c *gin.Context) { RenderStatus(c, sessions, http.StatusNotFound) }
}
func NoMethod(sessions *scs.SessionManager) gin.HandlerFunc {
	return func(c *gin.Context) { RenderStatus(c, sessions, http.StatusMethodNotAllowed) }
}
func Recovery(sessions *scs.SessionManager) gin.RecoveryFunc {
	return func(c *gin.Context, _ interface{}) {
		RenderStatus(c, sessions, http.StatusInternalServerError)
	}
}