// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1

//go:build !consulent

package config

import (
	"fmt"
	"net"
	"os"
	"testing"

	"github.com/hashicorp/consul/sdk/testutil"
	"github.com/stretchr/testify/require"
)

var testRuntimeConfigSanitizeExpectedFilename = "TestRuntimeConfig_Sanitize.golden"

func entFullRuntimeConfig(rt *RuntimeConfig) {}

var enterpriseReadReplicaWarnings = []string{enterpriseConfigKeyError{key: "read_replica (or the deprecated non_voting_server)"}.Error()}

var enterpriseConfigKeyWarnings = []string{
	enterpriseConfigKeyError{key: "license_path"}.Error(),
	enterpriseConfigKeyError{key: "read_replica (or the deprecated non_voting_server)"}.Error(),
	enterpriseConfigKeyError{key: "autopilot.redundancy_zone_tag"}.Error(),
	enterpriseConfigKeyError{key: "autopilot.upgrade_version_tag"}.Error(),
	enterpriseConfigKeyError{key: "autopilot.disable_upgrade_migration"}.Error(),
	enterpriseConfigKeyError{key: "dns_config.prefer_namespace"}.Error(),
	enterpriseConfigKeyError{key: "acl.msp_disable_bootstrap"}.Error(),
	enterpriseConfigKeyError{key: "acl.tokens.managed_service_provider"}.Error(),
	enterpriseConfigKeyError{key: "audit"}.Error(),
	enterpriseConfigKeyError{key: "reporting.license.enabled"}.Error(),
}

// CE-only equivalent of TestConfigFlagsAndEdgecases
// used for flags validated in ent-only code
func TestLoad_IntegrationWithFlags_CE(t *testing.T) {
	dataDir := testutil.TempDir(t, "consul")
	defer os.RemoveAll(dataDir)

	tests := []testCase{
		{
			desc: "partition config on a client",
			args: []string{
				`-data-dir=` + dataDir,
				`-server=false`,
			},
			json: []string{`{ "partition": "foo" }`},
			hcl:  []string{`partition = "foo"`},
			expectedWarnings: []string{
				`"partition" is a Consul Enterprise configuration and will have no effect`,
			},
			expected: func(rt *RuntimeConfig) {
				rt.DataDir = dataDir
				rt.ServerMode = false
			},
		},
		{
			desc: "partition config on a server",
			args: []string{
				`-data-dir=` + dataDir,
				`-server`,
			},
			json: []string{`{ "partition": "foo" }`},
			hcl:  []string{`partition = "foo"`},
			expectedWarnings: []string{
				`"partition" is a Consul Enterprise configuration and will have no effect`,
			},
			expected: func(rt *RuntimeConfig) {
				rt.DataDir = dataDir
				rt.ServerMode = true
				rt.TLS.ServerMode = true
				rt.LeaveOnTerm = false
				rt.SkipLeaveOnInt = true
				rt.RPCConfig.EnableStreaming = true
				rt.GRPCTLSPort = 8503
				rt.GRPCTLSAddrs = []net.Addr{defaultGrpcTlsAddr}
			},
		},
	}

	for _, tc := range tests {
		for _, format := range []string{"json", "hcl"} {
			name := fmt.Sprintf("%v_%v", tc.desc, format)
			t.Run(name, tc.run(format, dataDir))
		}
	}
}

func TestLoad_ReportingConfig(t *testing.T) {
	dir := testutil.TempDir(t, t.Name())

	t.Run("load from JSON defaults to false", func(t *testing.T) {
		content := `{
			"reporting": {}
		}`

		opts := LoadOpts{
			FlagValues: FlagValuesTarget{Config: Config{
				DataDir: &dir,
			}},
			Overrides: []Source{
				FileSource{
					Name:   "reporting.json",
					Format: "json",
					Data:   content,
				},
			},
		}
		patchLoadOptsShims(&opts)
		result, err := Load(opts)
		require.NoError(t, err)
		require.Len(t, result.Warnings, 0)
		require.Equal(t, false, result.RuntimeConfig.Reporting.License.Enabled)
	})

	t.Run("load from HCL defaults to false", func(t *testing.T) {
		content := `
		  reporting {}
		`

		opts := LoadOpts{
			FlagValues: FlagValuesTarget{Config: Config{
				DataDir: &dir,
			}},
			Overrides: []Source{
				FileSource{
					Name:   "reporting.hcl",
					Format: "hcl",
					Data:   content,
				},
			},
		}
		patchLoadOptsShims(&opts)
		result, err := Load(opts)
		require.NoError(t, err)
		require.Len(t, result.Warnings, 0)
		require.Equal(t, false, result.RuntimeConfig.Reporting.License.Enabled)
	})

	t.Run("with value set returns warning and defaults to false", func(t *testing.T) {
		content := `reporting {
			license {
			  enabled = true
			}
		}`

		opts := LoadOpts{
			FlagValues: FlagValuesTarget{Config: Config{
				DataDir: &dir,
			}},
			Overrides: []Source{
				FileSource{
					Name:   "reporting.hcl",
					Format: "hcl",
					Data:   content,
				},
			},
		}
		patchLoadOptsShims(&opts)
		result, err := Load(opts)
		require.NoError(t, err)
		require.Len(t, result.Warnings, 1)
		require.Contains(t, result.Warnings[0], "\"reporting.license.enabled\" is a Consul Enterprise configuration and will have no effect")
		require.Equal(t, false, result.RuntimeConfig.Reporting.License.Enabled)
	})
}