// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.

package client

import (
	"github.com/stretchr/testify/assert"
	"testing"
	"fmt"
	"context"
	"decl/internal/folio"
	"decl/internal/resource"
	"decl/internal/codec"
	"log/slog"
	"os"
	"io"
	"strings"
)

	var containerDoc string = `
imports:
- %s
resources:
- type: container
  transition: create
  attributes:
    image: rosskeenhouse/build-golang:1.22.6-alpine
    name: jx-client-resources-test
    hostconfig:
      autoremove: false
      mounts:
      - type: "bind"
        source: "%s"
        target: "/src"
      - type: "bind"
        source: "%s"
        target: "%s"
    workingdir: "/src"
    entrypoint:
    - "/src/jx"
    cmd:
    - apply
    - %s
    wait: true
---
resources:
- type: container
  transition: delete
  attributes:
    name: jx-client-resources-test
`

// create a container
// run a test inside the container
func TestUserResource(t *testing.T) {
	ctx := context.Background()
	c := NewClient()
	assert.NotNil(t, c)

	TempDir.Mkdir("testresources", 0700)
	tmpresourcespath := TempDir.FilePath("testresources")
	configurations := fmt.Sprintf(`
configurations:
- name: tmpdir
  values:
    prefix: %s
`, tmpresourcespath)

	assert.Nil(t, TempDir.CreateFile("config.jx.yaml", configurations))

	configURI := TempDir.URIPath("config.jx.yaml")
	//assert.Nil(t, c.Import([]string{configURI}))

	testUserFile := fmt.Sprintf(`
imports:
- %s
resources:
- type: file
  config: tmpdir
  transition: update
  attributes:
    path: testdir
    mode: 0600
    state: present
- type: group
  transition: update
  attributes:
    name: testuser
- type: group
  transition: update
  attributes:
    name: testgroup
- type: user
  transition: update
  attributes:
    name: testuser
    gecos: "my test account"
    home: "/home/testuser"
    createhome: true
    group: testuser
    groups:
    - testgroup
    - testuser
    appendgroups: true
    state: present
`, configURI)

	assert.Nil(t, TempDir.CreateFile("test_userfile.jx.yaml", testUserFile))

	for _, resourceTestDoc := range []string{
		TempDir.FilePath("test_userfile.jx.yaml"),
	} {
		content := fmt.Sprintf(containerDoc, configURI, os.Getenv("WORKSPACE_PATH"), TempDir, TempDir, resourceTestDoc)
		assert.Nil(t, TempDir.CreateFile("run-tests.jx.yaml", content))

		runTestsDocument := TempDir.URIPath("run-tests.jx.yaml")
		assert.Nil(t, c.Import([]string{runTestsDocument}))
		assert.Nil(t, c.LoadDocumentImports())

		assert.Nil(t, c.Apply(ctx, false))

		applied, ok := folio.DocumentRegistry.GetDocument(folio.URI(runTestsDocument))
		assert.True(t, ok)

		cont := applied.ResourceDeclarations[0].Resource().(*resource.Container)

		slog.Info("TestUserResources", "stdout", cont.Stdout, "stderr", cont.Stderr)
		slog.Info("TestUserResources", "doc", applied, "container", applied.ResourceDeclarations[0])
		assert.Equal(t, 0, len(applied.Errors))
		assert.Greater(t, len(cont.Stdout), 0)

		resultReader := io.NopCloser(strings.NewReader(cont.Stdout))
		decoder := codec.NewDecoder(resultReader, codec.FormatYaml)

		result := folio.NewDocument(nil)
		assert.Nil(t, decoder.Decode(folio.NewDocument(nil)))
		assert.Nil(t, decoder.Decode(result))

		uri := fmt.Sprintf("file://%s", resourceTestDoc)
		//testDoc := folio.DocumentRegistry.NewDocument(folio.URI(uri))
		docs, loadErr := folio.DocumentRegistry.Load(folio.URI(uri))
		assert.Nil(t, loadErr)
		testDoc := docs[0]

		var added int = 0
		diffs, diffsErr := testDoc.(*folio.Document).Diff(result, nil)
		assert.Nil(t, diffsErr)
		assert.Greater(t, len(diffs), 1)
		for _, line := range strings.Split(diffs, "\n") {
			if len(line) > 0 {
				switch line[0] {
				case '+':
					slog.Info("TestUserResources Diff", "line", line, "added", added)
					added++
				case '-':
					assert.Fail(t, "resource attribute missing", line)
				}
			}
		}
		assert.Equal(t, 4, added)
	}

}