2 files changed, 221 insertions, 0 deletions
diff --git a/api/guestbook/guestbook.go b/api/guestbook/guestbook.go
new file mode 100644
index 0000000..60a7b4b
--- /dev/null
+++ b/api/guestbook/guestbook.go
@@ -0,0 +1,85 @@
+package guestbook
+
+import (
+	"log"
+	"net/http"
+	"strings"
+
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/types"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/database"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/utils"
+)
+
+func validateGuestbookEntry(entry *database.GuestbookEntry) []string {
+	errors := []string{}
+
+	if entry.Name == "" {
+		errors = append(errors, "name is required")
+	}
+
+	if entry.Message == "" {
+		errors = append(errors, "message is required")
+	}
+
+	messageLength := len(entry.Message)
+	if messageLength > 500 {
+		errors = append(errors, "message cannot be longer than 500 characters")
+	}
+
+	newLines := strings.Count(entry.Message, "\n")
+	if newLines > 10 {
+		errors = append(errors, "message cannot contain more than 10 new lines")
+	}
+
+	return errors
+}
+
+func SignGuestbookContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
+		name := req.FormValue("name")
+		message := req.FormValue("message")
+
+		formErrors := types.FormError{
+			Errors: []string{},
+		}
+
+		entry := &database.GuestbookEntry{
+			ID:      utils.RandomId(),
+			Name:    name,
+			Message: message,
+		}
+		formErrors.Errors = append(formErrors.Errors, validateGuestbookEntry(entry)...)
+
+		if len(formErrors.Errors) == 0 {
+			_, err := database.SaveGuestbookEntry(context.DBConn, entry)
+			if err != nil {
+				log.Println(err)
+				formErrors.Errors = append(formErrors.Errors, "failed to save entry")
+			}
+		}
+
+		if len(formErrors.Errors) > 0 {
+			(*context.TemplateData)["FormError"] = formErrors
+			(*context.TemplateData)["EntryForm"] = entry
+			resp.WriteHeader(http.StatusBadRequest)
+
+			return failure(context, req, resp)
+		}
+
+		return success(context, req, resp)
+	}
+}
+
+func ListGuestbookContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
+		entries, err := database.GetGuestbookEntries(context.DBConn)
+		if err != nil {
+			log.Println(err)
+			resp.WriteHeader(http.StatusInternalServerError)
+			return failure(context, req, resp)
+		}
+
+		(*context.TemplateData)["GuestbookEntries"] = entries
+		return success(context, req, resp)
+	}
+}
diff --git a/api/guestbook/guestbook_test.go b/api/guestbook/guestbook_test.go
new file mode 100644
index 0000000..9fd6c62
--- /dev/null
+++ b/api/guestbook/guestbook_test.go
@@ -0,0 +1,136 @@
+package guestbook_test
+
+import (
+	"database/sql"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/guestbook"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/types"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/args"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/database"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/utils"
+)
+
+func IdContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+	return func(success types.Continuation, _failure types.Continuation) types.ContinuationChain {
+		return success(context, req, resp)
+	}
+}
+
+func setup() (*sql.DB, *types.RequestContext, func()) {
+	randomDb := utils.RandomId()
+
+	testDb := database.MakeConn(&randomDb)
+	database.Migrate(testDb)
+
+	context := &types.RequestContext{
+		DBConn:       testDb,
+		Args:         &args.Arguments{},
+		TemplateData: &(map[string]interface{}{}),
+	}
+
+	return testDb, context, func() {
+		testDb.Close()
+		os.Remove(randomDb)
+	}
+}
+
+func TestValidGuestbookPutsInDatabase(t *testing.T) {
+	db, context, cleanup := setup()
+	defer cleanup()
+
+	entries, err := database.GetGuestbookEntries(db)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(entries) > 0 {
+		t.Errorf("expected no entries, got entries")
+	}
+
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		guestbook.SignGuestbookContinuation(context, r, w)(IdContinuation, IdContinuation)
+	}))
+	defer ts.Close()
+
+	req := httptest.NewRequest("POST", ts.URL, nil)
+	req.Form = map[string][]string{
+		"name":    {"test"},
+		"message": {"test"},
+	}
+
+	w := httptest.NewRecorder()
+	ts.Config.Handler.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Errorf("expected status code 200, got %d", w.Code)
+	}
+
+	entries, err = database.GetGuestbookEntries(db)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(entries) != 1 {
+		t.Errorf("expected 1 entry, got %d", len(entries))
+	}
+
+	if entries[0].Name != req.FormValue("name") {
+		t.Errorf("expected name %s, got %s", req.FormValue("name"), entries[0].Name)
+	}
+}
+
+func TestInvalidGuestbookNotFoundInDatabase(t *testing.T) {
+	db, context, cleanup := setup()
+	defer cleanup()
+
+	entries, err := database.GetGuestbookEntries(db)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(entries) > 0 {
+		t.Errorf("expected no entries, got entries")
+	}
+
+	testServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		guestbook.SignGuestbookContinuation(context, r, w)(IdContinuation, IdContinuation)
+	}))
+	defer testServer.Close()
+
+	reallyLongStringThatWouldTakeTooMuchSpace := "a\na\na\na\na\na\na\na\na\na\na\n"
+	invalidRequests := []struct {
+		name    string
+		message string
+	}{
+		{"", "test"},
+		{"test", ""},
+		{"", ""},
+		{"test", reallyLongStringThatWouldTakeTooMuchSpace},
+	}
+
+	for _, form := range invalidRequests {
+		req := httptest.NewRequest("POST", testServer.URL, nil)
+		req.Form = map[string][]string{
+			"name":    {form.name},
+			"message": {form.message},
+		}
+
+		responseRecorder := httptest.NewRecorder()
+		testServer.Config.Handler.ServeHTTP(responseRecorder, req)
+
+		if responseRecorder.Code != http.StatusBadRequest {
+			t.Errorf("expected status code 400, got %d", responseRecorder.Code)
+		}
+	}
+
+	entries, err = database.GetGuestbookEntries(db)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if len(entries) != 0 {
+		t.Errorf("expected 0 entries, got %d", len(entries))
+	}
+}