Fix behaviour when existing pull request

main.go

@@ -63,7 +63,7 @@ func ParseActionConfig(ctx githubactions.GitHubContext) (*CreatePrConfig, error)
 }
 
 func main() {
-	fmt.Println("Starting action CreatePullRequest, main")
+	fmt.Println("Starting result CreatePullRequest, main")
 	ctx, err := githubactions.Context()
 	if err != nil {
 		githubactions.Fatalf("could not get context: %v", err.Error())
@@ -77,7 +77,7 @@ func main() {
 		githubactions.Fatalf("%v", err.Error())
 	}
 
-	pr, err := createPullRequest(ctx.ServerURL, token, *config)
+	pr, result, err := createPullRequest(ctx.ServerURL, token, *config)
 	if err != nil {
 		githubactions.Fatalf("Error while creating pr: %v", err.Error())
 	}
@@ -85,8 +85,10 @@ func main() {
 	fmt.Printf("Created PR with id %d\n", pr.ID)
 
 	githubactions.SetOutput("pull-request-number", strconv.FormatInt(pr.Index, 10))
+	githubactions.SetOutput("pull-request-result", result)
 	githubactions.SetOutput("pull-request-url", pr.URL)
 
+	fmt.Println("Ending result CreatePullRequest, main")
 }
 
 // Agent which will perform changes on gitea
@@ -114,14 +116,8 @@ type CreatePrConfig struct {
 	Labels []string
 }
 
-// branchHasOpenPullRequest checks if there is an open pull request with the given branch name in a repository.
+// ExistingOpenPullRequest checks if there is an existing pull request for the same head branch and return it
-// It uses the Gitea client to list all open pull requests in the repository and checks if the branch name matches any of them.
+func (a *Agent) ExistingOpenPullRequest(config CreatePrConfig) (bool, *gitea.PullRequest, error) {
-// If a match is found, it returns true indicating that the branch has an open pull request.
-// If there is an error listing the pull requests, it returns true along with the error.
-// If there are no open pull requests with the branch name, it returns false.
-// The method takes a CreatePrConfig struct as a parameter which contains the organization, repository, and branch details.
-// It returns a boolean indicating if there is an open pull request and an error if any occurred.
-func (a *Agent) branchHasOpenPullRequest(config CreatePrConfig) (bool, error) {
 	currentPage := 1
 
 	for currentPage != 0 {
@@ -129,19 +125,19 @@ func (a *Agent) branchHasOpenPullRequest(config CreatePrConfig) (bool, error) {
 			gitea.ListPullRequestsOptions{State: gitea.StateOpen, ListOptions: gitea.ListOptions{Page: currentPage}})
 
 		if err != nil {
-			return true, err
+			return false, nil, err
 		}
 
-		for _, p := range pulls {
+		for _, pull := range pulls {
-			if p.Head.Name == config.HeadBranch {
+			if pull.Head.Name == config.HeadBranch {
-				return true, nil
+				return true, pull, nil
 			}
 		}
 
 		currentPage = response.NextPage
 	}
 
-	return false, nil
+	return false, nil, nil
 }
 
 // labelsFromString retrieves a list of labels from a repository based on the provided configuration.
@@ -209,7 +205,7 @@ func (a *Agent) createPullRequestGitea(config CreatePrConfig) (*gitea.PullReques
 // createPullRequest takes in the API URL, access token, and configuration for creating a pull request.
 // It initializes a Gitea client using the API URL and access token.
 // It creates an instance of the Agent struct using the Gitea client.
-// It checks if there is an open pull request with the given branch name in the repository using the branchHasOpenPullRequest method of Agent.
+// It checks if there is an open pull request with the given branch name in the repository using the ExistingOpenPullRequest method of Agent.
 // If an open pull request already exists, it returns nil as the pull request and nil error.
 // If no open pull request exists, it creates a new pull request using the createPullRequestGitea method of Agent.
 // It returns the created pull request and nil error if successful.
@@ -219,25 +215,25 @@ func (a *Agent) createPullRequestGitea(config CreatePrConfig) (*gitea.PullReques
 // - token: The access token for authenticating with the Gitea API.
 // - config: The configuration for creating the pull request, including the organization, repository, branch details, title, body, assignees, and labels.
 // It returns a pointer to the created pull request and an error.
-func createPullRequest(apiUrl string, token string, config CreatePrConfig) (*gitea.PullRequest, error) {
+func createPullRequest(apiUrl string, token string, config CreatePrConfig) (*gitea.PullRequest, string, error) {
 
 	client, _ := gitea.NewClient(apiUrl, gitea.SetToken(token))
 	agent := &Agent{client: client}
 
-	has, err := agent.branchHasOpenPullRequest(config)
+	has, pull, err := agent.ExistingOpenPullRequest(config)
 	if err != nil {
-		return nil, err
+		return nil, "error", err
 	}
 
 	if has {
-		return nil, errors.New("PR already exists for this head branch")
+		return pull, "existing", nil
 	}
 
 	pr, err := agent.createPullRequestGitea(config)
 
 	if err != nil {
-		return nil, err
+		return nil, "error", err
 	}
 
-	return pr, nil
+	return pr, "created", nil
 }