// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT

package integration

import (
	"encoding/base64"
	"fmt"
	"net/http"
	"net/url"
	"reflect"
	"testing"
	"time"

	actions_model "forgejo.org/models/actions"
	auth_model "forgejo.org/models/auth"
	repo_model "forgejo.org/models/repo"
	"forgejo.org/models/unittest"
	user_model "forgejo.org/models/user"
	"forgejo.org/modules/git"
	"forgejo.org/modules/json"
	"forgejo.org/modules/setting"
	api "forgejo.org/modules/structs"

	runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestJobWithNeeds(t *testing.T) {
	if !setting.Database.Type.IsSQLite3() {
		t.Skip()
	}
	testCases := []struct {
		treePath         string
		fileContent      string
		outcomes         map[string]*mockTaskOutcome
		expectedStatuses map[string]string
	}{
		{
			treePath: ".gitea/workflows/job-with-needs.yml",
			fileContent: `name: job-with-needs
on:
  push:
    paths:
      - '.gitea/workflows/job-with-needs.yml'
jobs:
  job1:
    runs-on: ubuntu-latest
    steps:
      - run: echo job1
  job2:
    runs-on: ubuntu-latest
    needs: [job1]
    steps:
      - run: echo job2
`,
			outcomes: map[string]*mockTaskOutcome{
				"job1": {
					result: runnerv1.Result_RESULT_SUCCESS,
				},
				"job2": {
					result: runnerv1.Result_RESULT_SUCCESS,
				},
			},
			expectedStatuses: map[string]string{
				"job1": actions_model.StatusSuccess.String(),
				"job2": actions_model.StatusSuccess.String(),
			},
		},
		{
			treePath: ".gitea/workflows/job-with-needs-fail.yml",
			fileContent: `name: job-with-needs-fail
on:
  push:
    paths:
      - '.gitea/workflows/job-with-needs-fail.yml'
jobs:
  job1:
    runs-on: ubuntu-latest
    steps:
      - run: echo job1
  job2:
    runs-on: ubuntu-latest
    needs: [job1]
    steps:
      - run: echo job2
`,
			outcomes: map[string]*mockTaskOutcome{
				"job1": {
					result: runnerv1.Result_RESULT_FAILURE,
				},
			},
			expectedStatuses: map[string]string{
				"job1": actions_model.StatusFailure.String(),
				"job2": actions_model.StatusSkipped.String(),
			},
		},
		{
			treePath: ".gitea/workflows/job-with-needs-fail-if.yml",
			fileContent: `name: job-with-needs-fail-if
on:
  push:
    paths:
      - '.gitea/workflows/job-with-needs-fail-if.yml'
jobs:
  job1:
    runs-on: ubuntu-latest
    steps:
      - run: echo job1
  job2:
    runs-on: ubuntu-latest
    if: ${{ always() }}
    needs: [job1]
    steps:
      - run: echo job2
`,
			outcomes: map[string]*mockTaskOutcome{
				"job1": {
					result: runnerv1.Result_RESULT_FAILURE,
				},
				"job2": {
					result: runnerv1.Result_RESULT_SUCCESS,
				},
			},
			expectedStatuses: map[string]string{
				"job1": actions_model.StatusFailure.String(),
				"job2": actions_model.StatusSuccess.String(),
			},
		},
	}
	onGiteaRun(t, func(t *testing.T, u *url.URL) {
		user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
		session := loginUser(t, user2.Name)
		token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteRepository, auth_model.AccessTokenScopeWriteUser)

		apiRepo := createActionsTestRepo(t, token, "actions-jobs-with-needs", false)
		runner := newMockRunner()
		runner.registerAsRepoRunner(t, user2.Name, apiRepo.Name, "mock-runner", []string{"ubuntu-latest"})

		for _, tc := range testCases {
			t.Run(fmt.Sprintf("test %s", tc.treePath), func(t *testing.T) {
				// create the workflow file
				opts := getWorkflowCreateFileOptions(user2, apiRepo.DefaultBranch, fmt.Sprintf("create %s", tc.treePath), tc.fileContent)
				fileResp := createWorkflowFile(t, token, user2.Name, apiRepo.Name, tc.treePath, opts)

				// fetch and execute task
				for i := 0; i < len(tc.outcomes); i++ {
					task := runner.fetchTask(t)
					jobName := getTaskJobNameByTaskID(t, token, user2.Name, apiRepo.Name, task.Id)
					outcome := tc.outcomes[jobName]
					assert.NotNil(t, outcome)
					runner.execTask(t, task, outcome)
				}

				// check result
				req := NewRequest(t, "GET", fmt.Sprintf("/api/v1/repos/%s/%s/actions/tasks", user2.Name, apiRepo.Name)).
					AddTokenAuth(token)
				resp := MakeRequest(t, req, http.StatusOK)
				var actionTaskRespAfter api.ActionTaskResponse
				DecodeJSON(t, resp, &actionTaskRespAfter)
				for _, apiTask := range actionTaskRespAfter.Entries {
					if apiTask.HeadSHA != fileResp.Commit.SHA {
						continue
					}
					status := apiTask.Status
					assert.Equal(t, status, tc.expectedStatuses[apiTask.Name])
				}
			})
		}

		httpContext := NewAPITestContext(t, user2.Name, apiRepo.Name, auth_model.AccessTokenScopeWriteRepository)
		doAPIDeleteRepository(httpContext)(t)
	})
}

func TestJobNeedsMatrix(t *testing.T) {
	if !setting.Database.Type.IsSQLite3() {
		t.Skip()
	}
	testCases := []struct {
		treePath          string
		fileContent       string
		outcomes          map[string]*mockTaskOutcome
		expectedTaskNeeds map[string]*runnerv1.TaskNeed // jobID => TaskNeed
	}{
		{
			treePath: ".gitea/workflows/jobs-outputs-with-matrix.yml",
			fileContent: `name: jobs-outputs-with-matrix
on:
  push:
    paths:
      - '.gitea/workflows/jobs-outputs-with-matrix.yml'
jobs:
  job1:
    runs-on: ubuntu-latest
    outputs:
      output_1: ${{ steps.gen_output.outputs.output_1 }}
      output_2: ${{ steps.gen_output.outputs.output_2 }}
      output_3: ${{ steps.gen_output.outputs.output_3 }}
    strategy:
      matrix:
        version: [1, 2, 3]
    steps:
      - name: Generate output
        id: gen_output
        run: |
          version="${{ matrix.version }}"
          echo "output_${version}=${version}" >> "$GITHUB_OUTPUT"
  job2:
    runs-on: ubuntu-latest
    needs: [job1]
    steps:
      - run: echo '${{ toJSON(needs.job1.outputs) }}'
`,
			outcomes: map[string]*mockTaskOutcome{
				"job1 (1)": {
					result: runnerv1.Result_RESULT_SUCCESS,
					outputs: map[string]string{
						"output_1": "1",
						"output_2": "",
						"output_3": "",
					},
				},
				"job1 (2)": {
					result: runnerv1.Result_RESULT_SUCCESS,
					outputs: map[string]string{
						"output_1": "",
						"output_2": "2",
						"output_3": "",
					},
				},
				"job1 (3)": {
					result: runnerv1.Result_RESULT_SUCCESS,
					outputs: map[string]string{
						"output_1": "",
						"output_2": "",
						"output_3": "3",
					},
				},
			},
			expectedTaskNeeds: map[string]*runnerv1.TaskNeed{
				"job1": {
					Result: runnerv1.Result_RESULT_SUCCESS,
					Outputs: map[string]string{
						"output_1": "1",
						"output_2": "2",
						"output_3": "3",
					},
				},
			},
		},
		{
			treePath: ".gitea/workflows/jobs-outputs-with-matrix-failure.yml",
			fileContent: `name: jobs-outputs-with-matrix-failure
on:
  push:
    paths:
      - '.gitea/workflows/jobs-outputs-with-matrix-failure.yml'
jobs:
  job1:
    runs-on: ubuntu-latest
    outputs:
      output_1: ${{ steps.gen_output.outputs.output_1 }}
      output_2: ${{ steps.gen_output.outputs.output_2 }}
      output_3: ${{ steps.gen_output.outputs.output_3 }}
    strategy:
      matrix:
        version: [1, 2, 3]
    steps:
      - name: Generate output
        id: gen_output
        run: |
          version="${{ matrix.version }}"
          echo "output_${version}=${version}" >> "$GITHUB_OUTPUT"
  job2:
    runs-on: ubuntu-latest
    if: ${{ always() }}
    needs: [job1]
    steps:
      - run: echo '${{ toJSON(needs.job1.outputs) }}'
`,
			outcomes: map[string]*mockTaskOutcome{
				"job1 (1)": {
					result: runnerv1.Result_RESULT_SUCCESS,
					outputs: map[string]string{
						"output_1": "1",
						"output_2": "",
						"output_3": "",
					},
				},
				"job1 (2)": {
					result: runnerv1.Result_RESULT_FAILURE,
					outputs: map[string]string{
						"output_1": "",
						"output_2": "",
						"output_3": "",
					},
				},
				"job1 (3)": {
					result: runnerv1.Result_RESULT_SUCCESS,
					outputs: map[string]string{
						"output_1": "",
						"output_2": "",
						"output_3": "3",
					},
				},
			},
			expectedTaskNeeds: map[string]*runnerv1.TaskNeed{
				"job1": {
					Result: runnerv1.Result_RESULT_FAILURE,
					Outputs: map[string]string{
						"output_1": "1",
						"output_2": "",
						"output_3": "3",
					},
				},
			},
		},
	}
	onGiteaRun(t, func(t *testing.T, u *url.URL) {
		user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
		session := loginUser(t, user2.Name)
		token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteRepository, auth_model.AccessTokenScopeWriteUser)

		apiRepo := createActionsTestRepo(t, token, "actions-jobs-outputs-with-matrix", false)
		runner := newMockRunner()
		runner.registerAsRepoRunner(t, user2.Name, apiRepo.Name, "mock-runner", []string{"ubuntu-latest"})

		for _, tc := range testCases {
			t.Run(fmt.Sprintf("test %s", tc.treePath), func(t *testing.T) {
				opts := getWorkflowCreateFileOptions(user2, apiRepo.DefaultBranch, fmt.Sprintf("create %s", tc.treePath), tc.fileContent)
				createWorkflowFile(t, token, user2.Name, apiRepo.Name, tc.treePath, opts)

				for i := 0; i < len(tc.outcomes); i++ {
					task := runner.fetchTask(t)
					jobName := getTaskJobNameByTaskID(t, token, user2.Name, apiRepo.Name, task.Id)
					outcome := tc.outcomes[jobName]
					assert.NotNil(t, outcome)
					runner.execTask(t, task, outcome)
				}

				task := runner.fetchTask(t)
				actualTaskNeeds := task.Needs
				assert.Len(t, actualTaskNeeds, len(tc.expectedTaskNeeds))
				for jobID, tn := range tc.expectedTaskNeeds {
					actualNeed := actualTaskNeeds[jobID]
					assert.Equal(t, tn.Result, actualNeed.Result)
					assert.Len(t, actualNeed.Outputs, len(tn.Outputs))
					for outputKey, outputValue := range tn.Outputs {
						assert.Equal(t, outputValue, actualNeed.Outputs[outputKey])
					}
				}
			})
		}

		httpContext := NewAPITestContext(t, user2.Name, apiRepo.Name, auth_model.AccessTokenScopeWriteRepository)
		doAPIDeleteRepository(httpContext)(t)
	})
}

func TestActionsGiteaContext(t *testing.T) {
	if !setting.Database.Type.IsSQLite3() {
		t.Skip()
	}

	onGiteaRun(t, func(t *testing.T, u *url.URL) {
		user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
		user2Session := loginUser(t, user2.Name)
		user2Token := getTokenForLoggedInUser(t, user2Session, auth_model.AccessTokenScopeWriteRepository, auth_model.AccessTokenScopeWriteUser)

		apiBaseRepo := createActionsTestRepo(t, user2Token, "actions-gitea-context", false)
		baseRepo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: apiBaseRepo.ID})
		user2APICtx := NewAPITestContext(t, baseRepo.OwnerName, baseRepo.Name, auth_model.AccessTokenScopeWriteRepository)

		runner := newMockRunner()
		runner.registerAsRepoRunner(t, baseRepo.OwnerName, baseRepo.Name, "mock-runner", []string{"ubuntu-latest"})

		// init the workflow
		wfTreePath := ".gitea/workflows/pull.yml"
		wfFileContent := `name: Pull Request
on: pull_request
jobs:
  wf1-job:
    runs-on: ubuntu-latest
    steps:
      - run: echo 'test the pull'
`
		opts := getWorkflowCreateFileOptions(user2, baseRepo.DefaultBranch, fmt.Sprintf("create %s", wfTreePath), wfFileContent)
		createWorkflowFile(t, user2Token, baseRepo.OwnerName, baseRepo.Name, wfTreePath, opts)
		// user2 creates a pull request
		doAPICreateFile(user2APICtx, "user2-patch.txt", &api.CreateFileOptions{
			FileOptions: api.FileOptions{
				NewBranchName: "user2/patch-1",
				Message:       "create user2-patch.txt",
				Author: api.Identity{
					Name:  user2.Name,
					Email: user2.Email,
				},
				Committer: api.Identity{
					Name:  user2.Name,
					Email: user2.Email,
				},
				Dates: api.CommitDateOptions{
					Author:    time.Now(),
					Committer: time.Now(),
				},
			},
			ContentBase64: base64.StdEncoding.EncodeToString([]byte("user2-fix")),
		})(t)
		apiPull, err := doAPICreatePullRequest(user2APICtx, baseRepo.OwnerName, baseRepo.Name, baseRepo.DefaultBranch, "user2/patch-1")(t)
		require.NoError(t, err)
		task := runner.fetchTask(t)
		gtCtx := task.Context.GetFields()
		actionTask := unittest.AssertExistsAndLoadBean(t, &actions_model.ActionTask{ID: task.Id})
		actionRunJob := unittest.AssertExistsAndLoadBean(t, &actions_model.ActionRunJob{ID: actionTask.JobID})
		actionRun := unittest.AssertExistsAndLoadBean(t, &actions_model.ActionRun{ID: actionRunJob.RunID})
		require.NoError(t, actionRun.LoadAttributes(t.Context()))

		assert.Equal(t, user2.Name, gtCtx["actor"].GetStringValue())
		assert.Equal(t, setting.AppURL+"api/v1", gtCtx["api_url"].GetStringValue())
		assert.Equal(t, apiPull.Base.Ref, gtCtx["base_ref"].GetStringValue())
		runEvent := map[string]any{}
		require.NoError(t, json.Unmarshal([]byte(actionRun.EventPayload), &runEvent))
		assert.True(t, reflect.DeepEqual(gtCtx["event"].GetStructValue().AsMap(), runEvent))
		assert.Equal(t, actionRun.TriggerEvent, gtCtx["event_name"].GetStringValue())
		assert.Equal(t, apiPull.Head.Ref, gtCtx["head_ref"].GetStringValue())
		assert.Equal(t, actionRunJob.JobID, gtCtx["job"].GetStringValue())
		assert.Equal(t, actionRun.Ref, gtCtx["ref"].GetStringValue())
		assert.Equal(t, (git.RefName(actionRun.Ref)).ShortName(), gtCtx["ref_name"].GetStringValue())
		assert.False(t, gtCtx["ref_protected"].GetBoolValue())
		assert.Equal(t, (git.RefName(actionRun.Ref)).RefType(), gtCtx["ref_type"].GetStringValue())
		assert.Equal(t, actionRun.Repo.OwnerName+"/"+actionRun.Repo.Name, gtCtx["repository"].GetStringValue())
		assert.Equal(t, actionRun.Repo.OwnerName, gtCtx["repository_owner"].GetStringValue())
		assert.Equal(t, actionRun.Repo.HTMLURL(), gtCtx["repositoryUrl"].GetStringValue())
		assert.Equal(t, fmt.Sprint(actionRunJob.RunID), gtCtx["run_id"].GetStringValue())
		assert.Equal(t, fmt.Sprint(actionRun.Index), gtCtx["run_number"].GetStringValue())
		assert.Equal(t, fmt.Sprint(actionRunJob.Attempt), gtCtx["run_attempt"].GetStringValue())
		assert.Equal(t, "Actions", gtCtx["secret_source"].GetStringValue())
		assert.Equal(t, setting.AppURL, gtCtx["server_url"].GetStringValue())
		assert.Equal(t, actionRun.CommitSHA, gtCtx["sha"].GetStringValue())
		assert.Equal(t, actionRun.WorkflowID, gtCtx["workflow"].GetStringValue())
		assert.Equal(t, setting.Actions.DefaultActionsURL.URL(), gtCtx["gitea_default_actions_url"].GetStringValue())
		token := gtCtx["token"].GetStringValue()
		assert.Equal(t, actionTask.TokenLastEight, token[len(token)-8:])

		doAPIDeleteRepository(user2APICtx)(t)
	})
}

func createActionsTestRepo(t *testing.T, authToken, repoName string, isPrivate bool) *api.Repository {
	req := NewRequestWithJSON(t, "POST", "/api/v1/user/repos", &api.CreateRepoOption{
		Name:          repoName,
		Private:       isPrivate,
		Readme:        "Default",
		AutoInit:      true,
		DefaultBranch: "main",
	}).AddTokenAuth(authToken)
	resp := MakeRequest(t, req, http.StatusCreated)
	var apiRepo api.Repository
	DecodeJSON(t, resp, &apiRepo)
	return &apiRepo
}

func getWorkflowCreateFileOptions(u *user_model.User, branch, msg, content string) *api.CreateFileOptions {
	return &api.CreateFileOptions{
		FileOptions: api.FileOptions{
			BranchName: branch,
			Message:    msg,
			Author: api.Identity{
				Name:  u.Name,
				Email: u.Email,
			},
			Committer: api.Identity{
				Name:  u.Name,
				Email: u.Email,
			},
			Dates: api.CommitDateOptions{
				Author:    time.Now(),
				Committer: time.Now(),
			},
		},
		ContentBase64: base64.StdEncoding.EncodeToString([]byte(content)),
	}
}

func createWorkflowFile(t *testing.T, authToken, ownerName, repoName, treePath string, opts *api.CreateFileOptions) *api.FileResponse {
	req := NewRequestWithJSON(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/contents/%s", ownerName, repoName, treePath), opts).
		AddTokenAuth(authToken)
	resp := MakeRequest(t, req, http.StatusCreated)
	var fileResponse api.FileResponse
	DecodeJSON(t, resp, &fileResponse)
	return &fileResponse
}

// getTaskJobNameByTaskID get the job name of the task by task ID
// there is currently not an API for querying a task by ID so we have to list all the tasks
func getTaskJobNameByTaskID(t *testing.T, authToken, ownerName, repoName string, taskID int64) string {
	// FIXME: we may need to query several pages
	req := NewRequest(t, "GET", fmt.Sprintf("/api/v1/repos/%s/%s/actions/tasks", ownerName, repoName)).
		AddTokenAuth(authToken)
	resp := MakeRequest(t, req, http.StatusOK)
	var taskRespBefore api.ActionTaskResponse
	DecodeJSON(t, resp, &taskRespBefore)
	for _, apiTask := range taskRespBefore.Entries {
		if apiTask.ID == taskID {
			return apiTask.Name
		}
	}
	return ""
}
