package vaultik_test

import (
	"bytes"
	"context"
	"encoding/json"
	"path/filepath"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"sneak.berlin/go/vaultik/internal/log"
	"sneak.berlin/go/vaultik/internal/ui"
	"sneak.berlin/go/vaultik/internal/vaultik"
)

// TestPurgeSnapshots_QuietSuppressesReport checks that `snapshot purge
// --keep-latest --force` under --quiet deletes the older snapshot and
// prints nothing.
func TestPurgeSnapshots_QuietSuppressesReport(t *testing.T) {
	log.Initialize(log.Config{})
	t.Parallel()

	v := setupPurgeTest(t, snapHostname, []string{snapHomeT0, snapHomeT1})

	var out bytes.Buffer

	v.Stdout = &out
	v.UI = ui.NewWithColor(&out, false)
	v.UI.SetQuiet(true)

	require.NoError(t, v.PurgeSnapshotsWithOptions(&vaultik.SnapshotPurgeOptions{
		KeepLatest: true,
		Force:      true,
	}))

	assert.Equal(t, []string{snapHomeT1}, listRemainingSnapshots(t, v))
	assert.Empty(t, out.String())
}

// TestPurgeSnapshots_QuietPromptListsSnapshots checks that `snapshot
// purge --keep-latest` without --force still lists the snapshots its
// prompt asks to delete under --quiet.
func TestPurgeSnapshots_QuietPromptListsSnapshots(t *testing.T) {
	log.Initialize(log.Config{})
	t.Parallel()

	v := setupPurgeTest(t, snapHostname, []string{snapHomeT0, snapHomeT1})

	var out bytes.Buffer

	v.Stdout = &out
	v.UI = ui.NewWithColor(&out, false)
	v.UI.SetQuiet(true)

	// Stdin is empty, so the prompt reads no answer and cancels.
	require.NoError(t, v.PurgeSnapshotsWithOptions(&vaultik.SnapshotPurgeOptions{
		KeepLatest: true,
	}))

	assert.Contains(t, out.String(), snapHomeT0)
	assert.Contains(t, out.String(), "Delete 1 snapshot(s)? [y/N]")
	assert.Len(t, listRemainingSnapshots(t, v), 2)
}

// TestPruneBlobs_QuietPromptShowsBlobTotal checks that `prune` without
// --force still states the count and total size of the blobs its prompt
// asks to delete under --quiet.
func TestPruneBlobs_QuietPromptShowsBlobTotal(t *testing.T) {
	log.Initialize(log.Config{})
	t.Parallel()

	env := newListEnv(t)
	env.v.UI.SetQuiet(true)

	// The store holds no manifest, so nothing references this blob.
	addBlob(t, env.store.testStorer, testBlobHashA)

	// Stdin is empty, so the prompt reads no answer and cancels.
	require.NoError(t, env.v.PruneBlobs(&vaultik.PruneOptions{}))

	assert.Contains(t, env.stdout.String(),
		"Found 1 unreferenced blob(s) totaling")
	assert.Contains(t, env.stdout.String(),
		"Delete 1 unreferenced blob(s)? [y/N]")
}

// TestRemoveSnapshot_QuietSuppressesReport checks that `snapshot remove`
// under --quiet prints nothing with --dry-run or with --force, and that
// the --json document still prints.
func TestRemoveSnapshot_QuietSuppressesReport(t *testing.T) {
	log.Initialize(log.Config{})
	t.Parallel()

	newQuietRemover := func() (*vaultik.TestVaultik, *testStorer) {
		store := newTestStorer()
		addManifest(t, store, "snapshot-001", nil)

		// A backup wrote to this destination, so it carries the marker.
		require.NoError(t, store.Put(context.Background(), markerFile,
			bytes.NewReader(nil)))

		tv := vaultik.NewForTesting(store)
		tv.Repositories = newLocalIndex(t, "snapshot-001")
		tv.UI.SetQuiet(true)

		return tv, store
	}

	tv, store := newQuietRemover()

	_, err := tv.RemoveSnapshot("snapshot-001",
		&vaultik.RemoveOptions{DryRun: true})
	require.NoError(t, err)
	assert.Empty(t, tv.Stdout.String(),
		"--dry-run must print nothing under --quiet")

	_, err = tv.RemoveSnapshot("snapshot-001",
		&vaultik.RemoveOptions{Force: true})
	require.NoError(t, err)
	assert.False(t, store.hasKey(remoteKeyPath("snapshot-001")))
	assert.Empty(t, tv.Stdout.String(),
		"--force must print nothing under --quiet")

	tv, _ = newQuietRemover()

	_, err = tv.RemoveSnapshot("snapshot-001",
		&vaultik.RemoveOptions{JSON: true})
	require.NoError(t, err)

	var result vaultik.RemoveResult

	require.NoError(t, json.Unmarshal(tv.Stdout.Bytes(), &result),
		"the --json document must still print under --quiet")
	assert.True(t, result.RemoteRemoved)
}

// TestNukeRemote_QuietSuppressesReport checks that `remote nuke --force`
// under --quiet prints nothing while it removes a snapshot's metadata
// and its blobs.
func TestNukeRemote_QuietSuppressesReport(t *testing.T) {
	log.Initialize(log.Config{})
	t.Parallel()

	ctx := context.Background()
	storeDir := filepath.Join(t.TempDir(), "store")
	v, _, out := backUpToFileDestination(ctx, t, storeDir)
	v.UI.SetQuiet(true)

	require.NoError(t, v.NukeRemote(true))
	assert.Empty(t, out.String())
}