refactored for maintainability

This commit is contained in:
2026-02-08 17:19:45 +11:00
parent 7125683e6a
commit ac38025b77
40 changed files with 1211 additions and 920 deletions

View File

@@ -4,12 +4,13 @@ import (
"context"
"fmt"
"net/http"
"strings"
"time"
"git.haelnorr.com/h/golib/hws"
"git.haelnorr.com/h/oslstats/internal/db"
"git.haelnorr.com/h/oslstats/internal/notify"
"git.haelnorr.com/h/oslstats/internal/validation"
"git.haelnorr.com/h/oslstats/internal/view/page"
"git.haelnorr.com/h/timefmt"
"github.com/pkg/errors"
"github.com/uptrace/bun"
)
@@ -31,248 +32,62 @@ func NewSeasonSubmit(
conn *bun.DB,
) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Parse form data
err := r.ParseForm()
if err != nil {
err = notifyWarn(s, r, "Invalid Form", "Please check your input and try again.", nil)
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
getter, ok := validation.ParseFormOrNotify(s, w, r)
if !ok {
return
}
name := getter.String("name").
TrimSpace().Required().
MaxLength(20).MinLength(5).Value
shortName := getter.String("short_name").
TrimSpace().ToUpper().Required().
MaxLength(6).MinLength(2).Value
format := timefmt.NewBuilder().
DayNumeric2().Slash().
MonthNumeric2().Slash().
Year4().Build()
startDate := getter.Time("start_date", format).Required().Value
if !getter.ValidateAndNotify(s, w, r) {
return
}
// Get form values
name := strings.TrimSpace(r.FormValue("name"))
shortName := strings.TrimSpace(strings.ToUpper(r.FormValue("short_name")))
startDateStr := r.FormValue("start_date")
// Validate required fields
if name == "" || shortName == "" || startDateStr == "" {
err = notifyWarn(s, r, "Missing Fields", "All fields are required.", nil)
nameUnique := false
shortNameUnique := false
var season *db.Season
if ok := db.WithNotifyTx(s, w, r, conn, func(ctx context.Context, tx bun.Tx) (bool, error) {
var err error
nameUnique, err = db.IsUnique(ctx, tx, (*db.Season)(nil), "name", name)
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
return false, errors.Wrap(err, "db.IsSeasonNameUnique")
}
return
}
// Validate field lengths
if len(name) > 20 {
err = notifyWarn(s, r, "Invalid Name", "Season name must be 20 characters or less.", nil)
shortNameUnique, err = db.IsUnique(ctx, tx, (*db.Season)(nil), "short_name", shortName)
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
return false, errors.Wrap(err, "db.IsSeasonShortNameUnique")
}
return
}
if len(shortName) > 6 {
err = notifyWarn(s, r, "Invalid Short Name", "Short name must be 6 characters or less.", nil)
if !nameUnique || !shortNameUnique {
return true, nil
}
season, err = db.NewSeason(ctx, tx, name, shortName, startDate)
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
// Validate short name is alphanumeric only
if !isAlphanumeric(shortName) {
err = notifyWarn(s, r, "Invalid Short Name", "Short name must contain only letters and numbers.", nil)
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
// Parse start date (DD/MM/YYYY format)
startDate, err := time.Parse("02/01/2006", startDateStr)
if err != nil {
err = notifyWarn(s, r, "Invalid Date", "Please provide a valid start date in DD/MM/YYYY format.", nil)
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
// Begin database transaction
ctx, cancel := context.WithTimeout(r.Context(), 15*time.Second)
defer cancel()
tx, err := conn.BeginTx(ctx, nil)
if err != nil {
err = notifyInternalServiceError(s, r, "Database error", errors.Wrap(err, "conn.BeginTx"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
defer tx.Rollback()
// Double-check uniqueness (race condition protection)
nameUnique, err := db.IsSeasonNameUnique(ctx, tx, name)
if err != nil {
err = notifyInternalServiceError(s, r, "Database error", errors.Wrap(err, "db.IsSeasonNameUnique"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
return false, errors.Wrap(err, "db.NewSeason")
}
return true, nil
}); !ok {
return
}
if !nameUnique {
err = notifyWarn(s, r, "Duplicate Name", "This season name is already taken.", nil)
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
shortNameUnique, err := db.IsSeasonShortNameUnique(ctx, tx, shortName)
if err != nil {
err = notifyInternalServiceError(s, r, "Database error", errors.Wrap(err, "db.IsSeasonShortNameUnique"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
notify.Warn(s, w, r, "Duplicate Name", "This season name is already taken.", nil)
return
}
if !shortNameUnique {
err = notifyWarn(s, r, "Duplicate Short Name", "This short name is already taken.", nil)
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
notify.Warn(s, w, r, "Duplicate Short Name", "This short name is already taken.", nil)
return
}
// Create the season
season, err := db.NewSeason(ctx, tx, name, shortName, startDate)
if err != nil {
err = notifyInternalServiceError(s, r, "Failed to create season", errors.Wrap(err, "db.NewSeason"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
// Commit transaction
err = tx.Commit()
if err != nil {
err = notifyInternalServiceError(s, r, "Database error", errors.Wrap(err, "tx.Commit"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
// Send success notification
err = notifySuccess(s, r, "Season Created", fmt.Sprintf("Successfully created season: %s", name), nil)
if err != nil {
// Log but don't fail the request
s.LogError(hws.HWSError{
StatusCode: http.StatusInternalServerError,
Message: "Failed to send success notification",
Error: err,
})
}
// Redirect to the season detail page
notify.Success(s, w, r, "Season Created", fmt.Sprintf("Successfully created season: %s", name), nil)
w.Header().Set("HX-Redirect", fmt.Sprintf("/seasons/%s", season.ShortName))
w.WriteHeader(http.StatusOK)
})
}
// Helper function to validate alphanumeric strings
func isAlphanumeric(s string) bool {
for _, r := range s {
if ((r < 'A') || (r > 'Z')) && ((r < '0') || (r > '9')) {
return false
}
}
return true
}
func IsSeasonNameUnique(
s *hws.Server,
conn *bun.DB,
) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
err := r.ParseForm()
if err != nil {
w.WriteHeader(http.StatusBadRequest)
return
}
ctx, cancel := context.WithTimeout(r.Context(), 15*time.Second)
defer cancel()
tx, err := conn.BeginTx(ctx, nil)
if err != nil {
err = notifyInternalServiceError(s, r, "Database error", errors.Wrap(err, "conn.BeginTx"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
defer tx.Rollback()
// Trim whitespace for consistency
name := strings.TrimSpace(r.FormValue("name"))
unique, err := db.IsSeasonNameUnique(ctx, tx, name)
if err != nil {
err = notifyInternalServiceError(s, r, "Database error", errors.Wrap(err, "db.IsSeasonNameUnique"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
tx.Commit()
if !unique {
w.WriteHeader(http.StatusConflict)
return
}
w.WriteHeader(http.StatusOK)
})
}
func IsSeasonShortNameUnique(
s *hws.Server,
conn *bun.DB,
) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
err := r.ParseForm()
if err != nil {
w.WriteHeader(http.StatusBadRequest)
return
}
ctx, cancel := context.WithTimeout(r.Context(), 15*time.Second)
defer cancel()
tx, err := conn.BeginTx(ctx, nil)
if err != nil {
err = notifyInternalServiceError(s, r, "Database error", errors.Wrap(err, "conn.BeginTx"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
defer tx.Rollback()
// Get short name and convert to uppercase for consistency
shortname := strings.ToUpper(strings.TrimSpace(r.FormValue("short_name")))
unique, err := db.IsSeasonShortNameUnique(ctx, tx, shortname)
if err != nil {
err = notifyInternalServiceError(s, r, "Database error", errors.Wrap(err, "db.IsSeasonShortNameUnique"))
if err != nil {
throwInternalServiceError(s, w, r, "Error notifying client", err)
}
return
}
tx.Commit()
if !unique {
w.WriteHeader(http.StatusConflict)
return
}
w.WriteHeader(http.StatusOK)
})
}