package common

import (
  "strings"
  "github.com/gofiber/fiber/v2"
  "github.com/gofiber/fiber/v2/middleware/session"
  "io/fs"
  "path/filepath"
  "fmt"
)

var STORE *session.Store

func AddAuthedPage(app *fiber.App, must_admin bool, url string, view string) {
  handler := func(c *fiber.Ctx) error {
    _, err := AuthCheck(c, must_admin)
    if err != nil { return c.Redirect("/") }

    return c.Render(view, c.AllParams())
  }

  app.Get(url, handler)
}

func AddPage(app *fiber.App, url string, view string) {
  handler := func(c *fiber.Ctx) error {
    return c.Render(view, c.AllParams())
  }

  app.Get(url, handler)
}

func Page(path string) (func(c *fiber.Ctx) error) {
  page_id := strings.ReplaceAll(path, "/", "-") + "-page"

  return func (c *fiber.Ctx) error {
    return c.Render(path, fiber.Map{"PageId": page_id})
  }
}

func SplitRouteTemplate(path string) (string, string) {
  path = filepath.ToSlash(filepath.Clean(path))
  path, found := strings.CutPrefix(path, "views/")
  if !found { 
    fmt.Println("no views/ prefix?", path) 
  }

  ext := filepath.Ext(path)
  source_name, _ := strings.CutSuffix(path, ext)
  split_path := strings.Split(source_name, "/")

  var route string
  page := strings.Join(split_path, "/")
  last := split_path[len(split_path) - 1] 

  if last == "index" {
    // it's an index.html so route doesn't include it
    // WARN: page already has the leading /
    route = fmt.Sprintf("/%s/", filepath.Dir(page))
  } else {
    route = fmt.Sprintf("/%s", page)
  }

  return route, page
}

func ConfigViews(app *fiber.App, path string) error {
  route_map := make(map[string]string, 10)

  for _, route := range app.GetRoutes() {
    if route.Method == "GET" {
      route_map[route.Path] = route.Method
    }
  }

  err := filepath.WalkDir(path,
    func(path string, d fs.DirEntry, err error) error {
      if err != nil { return err }

      if !d.IsDir() && strings.HasSuffix(path, "html") {
        route, page := SplitRouteTemplate(path)
        _, exists := route_map[route]

        if exists {
          fmt.Println("ROUTE ", route, "Already exists, skipping", page)
        } else {
          fmt.Println("ROUTE ", route, "does not conflict page", page)
          AddPage(app, route, page)

          // update the route map to avoid dupes
          route_map[route] = "GET"
        }
      }

      return nil
    })

  return err
}