package main

import (
	"context"
	"io"
	"strings"
	"testing"

	"proxy-pool/internal/gateway/bootstrap"
)

func TestExecutePassesExplicitGatewayIdentity(t *testing.T) {
	t.Parallel()

	var captured bootstrap.Options
	status := execute(context.Background(), []string{
		"-config", "gateway.yaml",
		"-control-plane", "127.0.0.1:8443",
		"-cluster-id", "cluster-a",
		"-worker-id", "worker-a",
		"-instance-id", "instance-a",
		"-zone", "zone-a",
	}, func(string) string { return "" }, func(_ context.Context, options bootstrap.Options) error {
		captured = options
		return nil
	}, io.Discard)
	if status != 0 {
		t.Fatalf("execute() status = %d, want 0", status)
	}
	if captured.ConfigPath != "gateway.yaml" || captured.ControlPlaneAddress != "127.0.0.1:8443" ||
		captured.ClusterID != "cluster-a" || captured.WorkerID != "worker-a" ||
		captured.InstanceID != "instance-a" || captured.Zone != "zone-a" {
		t.Fatalf("bootstrap options = %+v", captured)
	}
}

func TestExecuteReadsGatewayOptionsFromEnvironment(t *testing.T) {
	t.Parallel()

	values := map[string]string{
		configEnvironment:              "gateway.yaml",
		controlPlaneAddressEnvironment: "127.0.0.1:8443",
		clusterIDEnvironment:           "cluster-a",
		workerIDEnvironment:            "worker-a",
		instanceIDEnvironment:          "instance-a",
		zoneEnvironment:                "zone-a",
	}
	var captured bootstrap.Options
	status := execute(context.Background(), nil, func(name string) string { return values[name] }, func(_ context.Context, options bootstrap.Options) error {
		captured = options
		return nil
	}, io.Discard)
	if status != 0 || captured.WorkerID != "worker-a" || captured.ControlPlaneAddress != "127.0.0.1:8443" {
		t.Fatalf("execute() = (%d, %+v)", status, captured)
	}
}

func TestExecutePassesAutoGatewayIdentityFromEnvironment(t *testing.T) {
	captured := bootstrap.Options{}
	values := map[string]string{
		configEnvironment: "gateway.yaml", controlPlaneAddressEnvironment: "127.0.0.1:8443",
		clusterIDEnvironment: "cluster-a", zoneEnvironment: "zone-a", autoIdentityEnvironment: "true",
	}
	code := execute(context.Background(), nil, func(name string) string { return values[name] }, func(_ context.Context, options bootstrap.Options) error {
		captured = options
		return nil
	}, io.Discard)
	if code != 0 || !captured.AutoIdentity || captured.WorkerID != "" || captured.InstanceID != "" {
		t.Fatalf("execute(auto identity) = (%d, %+v)", code, captured)
	}
}

func TestExecuteRejectsIncompleteGatewayOptions(t *testing.T) {
	t.Parallel()

	var output strings.Builder
	status := execute(context.Background(), []string{"-config", "gateway.yaml"}, func(string) string { return "" }, nil, &output)
	if status != 2 || !strings.Contains(output.String(), controlPlaneAddressEnvironment) {
		t.Fatalf("execute() = (%d, %q), want usage error naming missing environment", status, output.String())
	}
}