package auth

import (
  "github.com/gofiber/fiber/v2"
  _ "github.com/mattn/go-sqlite3"
  sq "github.com/Masterminds/squirrel"

  "MY/webapp/data"
  . "MY/webapp/common"
)

func GetApiAuthCheck(c *fiber.Ctx) error {
  _, err := Check(c, false)
  // auth failure or not authed is determined by err, with nil meaning YES AUTHED
  return c.JSON(fiber.Map{"is_authed": err == nil})
}

func GetApiLogout(c *fiber.Ctx) error {
  err := LogoutUser(c)
  if err != nil { return IfErrNil(err, c) }

  return c.Redirect("/")
}

func PostApiRegister(c *fiber.Ctx) error {
  user, err := ReceivePost[data.User](c)
  if err != nil { return IfErrNil(err, c) }

  err = SetUserPassword(user)
  if err != nil { return IfErrNil(err, c) }

  sql, args, err := sq.Insert("user").
    Columns("username", "email", "password").
    Values(user.Username, user.Email, user.Password).ToSql()

  _, err = data.Exec(err, sql, args...)
  if err != nil { return IfErrNil(err, c) }

  return c.Redirect("/login/")
}

func PostApiLogin(c *fiber.Ctx) error {
  var user data.User

  login, err := ReceivePost[data.Login](c)
  if(err != nil) { return IfErrNil(err, c) }

  pass_good, err := LoginUser(&user, login)
  if err != nil { return IfErrNil(err, c) }

  if pass_good {
    sess, err := STORE.Get(c)
    if err != nil { return IfErrNil(err, c) }

    sess.Set("user_id", user.Id)
    sess.Set("authenticated", true)
    sess.Set("admin", IsAdmin(&user))
    err = sess.Save()
    if err != nil { return IfErrNil(err, c) }

    return c.Redirect("/")
  } else {
    return c.Redirect("/login/")
  }
}


func Setup(app *fiber.App) {
  app.Get("/api/authcheck", GetApiAuthCheck)
  app.Get("/api/logout", GetApiLogout)
  app.Post("/api/register", PostApiRegister)
  app.Post("/api/login", PostApiLogin)
}