package router

import (
	"io"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"

	"go.jolheiser.com/cabinet"
	"go.jolheiser.com/cabinet/internal/workspace"
	"go.jolheiser.com/cabinet/internal/workspace/mock"

	"github.com/matryer/is"
	"github.com/rs/zerolog"
)

func TestRouter(t *testing.T) {
	zerolog.SetGlobalLevel(zerolog.Disabled)

	m := mock.New()
	server := httptest.NewUnstartedServer(nil)
	server.Start()
	defer server.Close()
	r := New(server.URL, m, NewLimit(12, 5*1024*1024, 100*1024*1024, 1024*1024))
	server.Config.Handler = r

	c := cabinet.New(server.URL, cabinet.WithHTTPClient(server.Client()))

	testRouter(t, "No Token", true, true, c)

	// All token
	aToken := workspace.Token{Key: "all", Permission: workspace.TokenFile | workspace.TokenRedirect}
	_ = m.AddToken(aToken)
	testRouter(t, "Incorrect Token", false, false, c)
	c.Token = aToken.Key
	testRouter(t, "All Token", true, true, c)

	// Redirect token
	rToken := workspace.Token{Key: "redirect", Permission: workspace.TokenRedirect}
	_ = m.AddToken(rToken)
	c.Token = rToken.Key
	testRouter(t, "Redirect Token", true, false, c)

	// File token
	fToken := workspace.Token{Key: "file", Permission: workspace.TokenFile}
	_ = m.AddToken(fToken)
	c.Token = fToken.Key
	testRouter(t, "File Token", false, true, c)
}

func testRouter(t *testing.T, name string, rSucceed, fSucceed bool, c *cabinet.Client) {
	// Redirect
	t.Run(name+" Redirect", func(t *testing.T) {
		assert := is.New(t)
		redir := "https://duckduckgo.com"
		u, res, err := c.Redirect(redir)
		switch {
		case rSucceed:
			assert.NoErr(err) // Creating a redirect should succeed
			resp, err := http.Get(u)
			assert.NoErr(err)
			assert.Equal(redir, resp.Request.URL.String()) // The redirect should match what was given
		case c.Token == "":
			assert.Equal(res.StatusCode, http.StatusUnauthorized) // Creating a redirect should be unauthorized
		case c.Token != "":
			assert.Equal(res.StatusCode, http.StatusForbidden) // Creating a redirect should be forbidden
		default:
			assert.Fail() // Unknown case in test
		}
	})

	// File
	t.Run(name+" File", func(t *testing.T) {
		assert := is.New(t)
		file := "foobar"
		f, res, err := c.File("test.txt", strings.NewReader(file))
		switch {
		case fSucceed:
			assert.NoErr(err) // Creating a file should succeed
			resp, err := http.Get(f)
			assert.NoErr(err)
			b, err := io.ReadAll(resp.Body)
			assert.NoErr(err)
			assert.Equal(file, string(b)) // The file should match what was given
		case c.Token == "":
			assert.Equal(res.StatusCode, http.StatusUnauthorized) // Creating a redirect should be unauthorized
		case c.Token != "":
			assert.Equal(res.StatusCode, http.StatusForbidden) // Creating a redirect should be forbidden
		default:
			assert.Fail() // Unknown case in test
		}
	})
}