add(gitea-api): individual issue and milestone getter

This implements the api getters for extracting a single issue and single
milestone for a given gitea repository and id. WIP for #1.

cmd/gitw/main.go

@@ -10,22 +10,20 @@ import (
 func main() {
 	repository := gitea.NewRepository("gitwarrior", "yves-biener")
 	server := gitea.NewGitea("https://gitea.yves-biener.de")
-	issues, err := server.GetIssues(repository)
+	issue, err := server.GetIssue(repository, 1)
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)
+		os.Exit(-1)
 	}
-	milestones, err := server.GetMilestones(repository)
+	milestone, err := server.GetMilestone(repository, 1)
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)
+		os.Exit(-1)
 	}
 
-	for _, issue := range issues {
+	fmt.Printf("%#v\n", issue)
-		fmt.Printf("%#v\n", issue)
-	}
 	fmt.Println("---")
-	for _, issue := range milestones {
+	fmt.Printf("%#v\n", milestone)
-		fmt.Printf("%#v\n", issue)
-	}
 
 	// necessary configurations (see config file gitw.json)
 	// - access code for gitea

internal/gitea/issue.go

@@ -56,3 +56,20 @@ func (gitea *Gitea) GetIssues(repo Repository) ([]Issue, error) {
 	}
 	return data, nil
 }
+
+func (gitea *Gitea) GetIssue(repo Repository, id uint) (Issue, error) {
+	var issue Issue
+	url := fmt.Sprintf("%s/repos/%s/issues/%d", gitea.Url(), repo.Full_name, id)
+	response, err := http.Get(url)
+	if err != nil {
+		return issue, err
+	}
+	defer response.Body.Close()
+	decoder := json.NewDecoder(response.Body)
+	// NOTE: remove this if I do not want to store everything from the json result in the struct
+	decoder.DisallowUnknownFields() // remain if every field shall be extracted
+	if err = decoder.Decode(&issue); err != nil {
+		return issue, err
+	}
+	return issue, nil
+}

internal/gitea/milestone.go

@@ -36,3 +36,20 @@ func (gitea *Gitea) GetMilestones(repo Repository) ([]Milestone, error) {
 	}
 	return data, nil
 }
+
+func (gitea *Gitea) GetMilestone(repo Repository, id uint) (Milestone, error) {
+	url := fmt.Sprintf("%s/repos/%s/milestones/%d", gitea.Url(), repo.Full_name, id)
+	response, err := http.Get(url)
+	var milestone Milestone
+	if err != nil {
+		return milestone, err
+	}
+	defer response.Body.Close()
+	decoder := json.NewDecoder(response.Body)
+	// NOTE: remove this if I do not want to store everything from the json result in the struct
+	decoder.DisallowUnknownFields() // remain if every field shall be extracted
+	if err = decoder.Decode(&milestone); err != nil {
+		return milestone, err
+	}
+	return milestone, nil
+}