package auth

import (
	"fmt"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestNewAuthWithConfig(t *testing.T) {
	clientConfig := ClientConfig{ClientID: "abc", ClientSecret: "def"}
	config := AuthConfig{}
	config.TokenEndpoint = "http://localhost/something"
	client, err := NewAuthWithConfig(clientConfig, config)
	assert.Equal(t, nil, err, "should return no error while creating Auth")
	assert.Equal(t, "http://localhost/something", client.authConfig.TokenEndpoint, "should have currect config")
	assert.Equal(t, "abc", client.clientConfig.ClientID, "should have stored currect clientid")
	assert.Equal(t, "def", client.clientConfig.ClientSecret, "should have stored currect client secret")
}

func TestNewAuthWithConfigurationURL(t *testing.T) {
	clientConfig := ClientConfig{ClientID: "abc", ClientSecret: "def"}
	client, err := NewAuthWithConfigurationURL(clientConfig, "http://localhost:8084/openid-configuration")
	assert.Nil(t, err, "should create client without any error")
	assert.Equal(t, "https://auth.keks.cloud/application/o/token/", client.authConfig.TokenEndpoint, "token endpoint should match")
	assert.Equal(t, "abc", client.clientConfig.ClientID, "should have stored currect clientid")
	assert.Equal(t, "def", client.clientConfig.ClientSecret, "should have stored currect client secret")
}

func TestGetAuthorizationUrl(t *testing.T) {
	tts := []struct {
		name        string
		config      AuthConfig
		redirectURL string
		scops       []string
		state       string
		exptUrl     string
		exptError   error
	}{
		{
			name:      "error-config-has-no-url",
			exptError: ErrCantGetAuthorizationURL,
		},
		{
			name:    "plain-url",
			config:  AuthConfig{AuthorizationEndpoint: "http://localhost/something"},
			exptUrl: "http://localhost/something?client_id=abc&response_type=code",
		},
		{
			name:        "url-with-redirect-and-state",
			config:      AuthConfig{AuthorizationEndpoint: "http://localhost/something"},
			exptUrl:     "http://localhost/something?client_id=abc&redirect_uri=https%3A%2F%2Fexample.com&response_type=code&state=randomStateStringWith%C3%A4and%C3%B6ok",
			redirectURL: "https://example.com",
			state:       "randomStateStringWithäandöok",
		},
		{
			name:    "url-with-scopes",
			config:  AuthConfig{AuthorizationEndpoint: "http://localhost/something"},
			scops:   []string{"some", "söäüöäüßcopes"},
			exptUrl: "http://localhost/something?client_id=abc&response_type=code&scope=some%2Bs%C3%B6%C3%A4%C3%BC%C3%B6%C3%A4%C3%BC%C3%9Fcopes",
		},
	}

	for _, tt := range tts {
		t.Run(tt.name, func(t *testing.T) {
			config := ClientConfig{ClientID: "abc", ClientSecret: "def", Scope: tt.scops, RedirectURL: tt.redirectURL}

			client, err := NewAuthWithConfig(config, tt.config)
			assert.Nil(t, err, "should be able to create client without error")

			url, err := client.GetAuthorizationURL(tt.state)
			if tt.exptError == nil {
				assert.Nil(t, err, "should get link without error")
			} else {
				assert.ErrorIs(t, err, tt.exptError, "should return right error")
			}
			assert.Equal(t, tt.exptUrl, url, "should return right url")
		})
	}
}

func TestUseCodeToGetToken(t *testing.T) {
	tts := []struct {
		name            string
		tokenURL        string
		token           string
		ExptError       error
		ExptErrorString string
		ExptAccessToken string
	}{
		{
			name:            "token-to-old",
			tokenURL:        "http://localhost:8084//token/wrong-code",
			ExptError:       ErrWrongResponseFromServer,
			ExptErrorString: "cant get access token from server: The provided authorization grant or refresh token is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client",
		},
		{
			name:            "valide-token",
			tokenURL:        "http://localhost:8084//token/valide-access-token.json",
			ExptAccessToken: "eyJhbGciOiJSUzI1NiIsImtpZCI6IjQ5ZGRiNmI0YzAxMmEyNjE2NWVhZDY5NTc5YWU1MWE5IiwidHlwIjoiSldUIn0.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.CSma-ZI9Sw3G9MuJlgnNUR7mmr-twYjf0hKpm7Z745oICIxIT-9A1rcOzN7goX9J_PeRABxBD3fCuOX0F1Xw3qZqs115zvllKl4R9Gs8zkk17Rdrubb7FWpbcz0NHpZPnv_d20zeHG9tIDmlg_Z_p-4AzOs5rvhrc0Dw_AMwnON8rWCIzB9XEq9z74ZDveCywdPzoW29Z1sVZQp5rwaFacMOPan1ERZNv5DAg4cR3znPszkgboW80XVCn7IYYnIWTHG70n3CkimVXgTBEO6PzwShejrv1_ggZrD01_K6OwCivTCEVJBZm_ElpnTgzyPwENnfacnuCnOoZK0dXTnOw-K9ZXQ8uEVbVpMK_F4ETnLs20ZHi-VJeU2IgQu84k8k1fx-jvwkvJbHpfrTL75Ajga8VAdcQHbqfNwppFsQwLRIocp_Ay5YpkBRS1Z3lWvA8XcI3V3O9pe836Jx2P4Q7YTnEFdVxTrqBCbwO2DjabO1fElbuokdf-qS46pFE-_wEwtTOfGUxXrH7NeI2vYwEYReKhO0Thf3iUfTtJbGVPphAvmHRNP2LBcpUeShQGBKHi4FtBPdTPvlGULCn8k9SZ3TTZXAzsE2uYfvf7sVjvEvD1jwLpDL8hZW6Ceqs-0KvY_CB3W2n2HbzGWHKgAL-4DPVRPHI_pEfGH0RnaTJ0M",
		},
		{
			name:            "server-retrun-500-error",
			tokenURL:        "http://localhost:8084//token/invalide-response",
			ExptError:       ErrWrongResponseFromServer,
			ExptErrorString: "cant get access token from server: somethings was really wrong",
		},
	}

	for _, tt := range tts {
		t.Run(tt.name, func(t *testing.T) {
			ClientConfig := ClientConfig{ClientID: "abc", ClientSecret: "def", RedirectURL: "http://localhost/something"}
			AuthConfig := AuthConfig{TokenEndpoint: tt.tokenURL}
			client, err := NewAuthWithConfig(ClientConfig, AuthConfig)
			assert.Nil(t, err, "should be abel to create client without error")

			token, err := client.GetTokenFromCode("abc")
			if tt.ExptError != nil {
				assert.ErrorIs(t, err, tt.ExptError, "should return right error")
				assert.Equal(t, tt.ExptErrorString, err.Error(), "should return currect error string")
				return
			}
			assert.Nil(t, err, "should be abled to get token without error")

			assert.Equal(t, tt.ExptAccessToken, token.AccessToken, "should return access token")
		})
	}
}

func TestGetUserInfo(t *testing.T) {
	tts := []struct {
		name         string
		accessToken  string
		userInfoUrl  string
		exptError    error
		exptErrorMsg string
		exptUsername string
		exptNickname string
	}{
		{
			name:         "token-invalide",
			accessToken:  "abc",
			userInfoUrl:  "http://localhost:8084/userinfo/authentik-success.json",
			exptUsername: "exampleusername",
			exptNickname: "mynickname",
		},
		{
			name:         "token-invalide",
			accessToken:  "abc",
			userInfoUrl:  "http://localhost:8084/userinfo/authentik-error.json",
			exptErrorMsg: "cant get user info: server response with nuon 200 status code (400)",
			exptError:    ErrCantGetUserInfo,
		},
	}

	for _, tt := range tts {
		t.Run(tt.name, func(t *testing.T) {
			ClientConfig := ClientConfig{ClientID: "abc", ClientSecret: "def", RedirectURL: "http://localhost/something"}
			AuthConfig := AuthConfig{UserinfoEndpoint: tt.userInfoUrl}
			client, err := NewAuthWithConfig(ClientConfig, AuthConfig)
			assert.Nil(t, err, "should be abel to create client without error")

			u := AuthentikUser{}
			err = client.GetUserInfo(tt.accessToken, &u)

			assert.ErrorIs(t, err, tt.exptError, "should return right error")

			if tt.exptErrorMsg != "" {
				assert.Equal(t, tt.exptErrorMsg, err.Error(), "should return right error string")
			}

			assert.Equal(t, tt.exptUsername, u.PreferredUsername, "should have right user")
			assert.Equal(t, tt.exptNickname, u.Nickname, "should have right nickname")
		})
	}
}

func TestAuthenticLogin(t *testing.T) {
	t.Skip("dev")
	clientConfig := ClientConfig{ClientID: "hTqEFr0CyS3XVWYC0folnZlU34JdjpRQmjpyhrQR", ClientSecret: "T6CcDWGWMshSLYbRCJ6yfYEphAVUEeeDii9k9o8uECY2ZRPovf2gPiC486W1DSKxIvOcyk2Y0iorBZRO4sbjNEvkfhbMYuEJAKAUk7mD3C7SPAb1MHl79PcZdMn2rdrp", RedirectURL: "http://localhost/somethingelse"}
	client, err := NewAuthWithConfigurationURL(clientConfig, "http://localhost:8084/openid-configuration")
	assert.Nil(t, err, "should be able to create client without error")
	url, err := client.GetAuthorizationURL("")
	assert.Nil(t, err, "should be able to create url without error")
	fmt.Println(url)

	token, err := client.GetTokenFromCode("0126cbf9d9034fdfbc7b03cff191dc5d")
	assert.Nil(t, err, "should be able to get code without error")
	fmt.Println(token.AccessToken)

	u := User{}
	client.GetUserInfo("eyJhbGciOiJSUzI1NiIsImtpZCI6IjQ5ZGRiNmI0YzAxMmEyNjE2NWVhZDY5NTc5YWU1MWE5IiwidHlwIjoiSldUIn0.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.il3HHGcVXL260sx1D9D8zvoSF7aIqbBKQVllTs7Giqej_3PBdFID9LQFRt9i0-izTw0M3RVnJ19xLNUZVSXyaRq1CPhuqUxA0fM3DJXfOxesD6pfhW9P92-U8fj_M4VxUwl_XAuWRB_5ynBii5HL4cdia89v4KyY2gohRUoUGvMLMN3qCT1WvS8RPQ--3MsHBi322C2NaPd2QX1TNXnYSaKRT0OQTUDRUopsp7R0KSNppngU813x9oiKL62UxGJ5ZRZ3OPTv0S_rV3Y9Ql9z8nmgcEW5ohckLFiTcb9v1HVr8XoKTU63g0REBkA3ZGh1RNDC99m0P3D_bDqni-fT3rSOOEW2x9gUOjX2SjKv2p4gRU9iHYSO1SCPk68ICTyogtwtHlM7IgGqdwoz10hGijkrOtq6cwWRwWZx6qYRV6TtEwbkEubKeanXOIF_eipUiemc5A-0xFKKC4BTJHrMVXWhKLZoPHYaog8MBMxzm8Hrf4cjfqCfFt1504J2ywUTHERRFr3031QNtICAjOYqrD59KcnCNdU0KztHa0trDfypkk-X_0Cxe0kG2CZX0fc21fQFBLewoTZ1FkOglMu6Yj_Wn7AjtBFQ1dGeWbxi6UJh0B9o2AiSrrOy392D5OTlwvD_Zmy-1c4Ijq5lDd7RbBhEr-pA7Eaz4PagyoAUCnk", &u)
}