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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package web | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/explore-flights/monorepo/go/api/data" | ||
| "github.com/explore-flights/monorepo/go/common" | ||
| "github.com/explore-flights/monorepo/go/common/xiter" | ||
| "github.com/explore-flights/monorepo/go/common/xtime" | ||
| "github.com/gorilla/feeds" | ||
| "github.com/labstack/echo/v4" | ||
| "io" | ||
| "maps" | ||
| "net/http" | ||
| "slices" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| func NewFlightUpdateFeedEndpoint(dh *data.Handler, contentType string, writer func(*feeds.Feed, io.Writer) error) echo.HandlerFunc { | ||
| feedContent := func(f *common.Flight) string { | ||
| content := fmt.Sprintf( | ||
| ` | ||
| Flight %s from %s to %s | ||
| Departure: %s | ||
| Arrival: %s | ||
| Aircraft: %s (%s) | ||
| Codeshares: %+v | ||
| `, | ||
| f.Number().String(), | ||
| f.DepartureAirport, | ||
| f.ArrivalAirport, | ||
| f.DepartureTime.Format(time.RFC3339), | ||
| f.ArrivalTime.Format(time.RFC3339), | ||
| f.AircraftType, | ||
| f.AircraftConfigurationVersion, | ||
| strings.Join(slices.Sorted(xiter.Map(maps.Keys(f.CodeShares), common.FlightNumber.String)), ", "), | ||
| ) | ||
|
|
||
| return strings.TrimSpace(content) | ||
| } | ||
|
|
||
| return func(c echo.Context) error { | ||
| fnRaw := c.Param("fn") | ||
| departureDateRaw := c.Param("departureDate") | ||
| departureAirport := strings.ToUpper(c.Param("departureAirport")) | ||
|
|
||
| fn, err := common.ParseFlightNumber(fnRaw) | ||
| if err != nil { | ||
| return echo.NewHTTPError(http.StatusBadRequest, err) | ||
| } | ||
|
|
||
| departureDate, err := xtime.ParseLocalDate(departureDateRaw) | ||
| if err != nil { | ||
| return echo.NewHTTPError(http.StatusBadRequest, err) | ||
| } | ||
|
|
||
| feedId := baseUrl(c) + fmt.Sprintf("/%s/%s/%s", fn.String(), departureDate.String(), departureAirport) | ||
| link := &feeds.Link{Href: fmt.Sprintf("https://explore.flights/flight/%s", fn.String())} | ||
| feed := &feeds.Feed{ | ||
| Id: feedId, | ||
| Title: fmt.Sprintf("Flight %s from %s on %s (UTC)", fn.String(), departureAirport, departureDate.String()), | ||
| Link: link, | ||
| } | ||
|
|
||
| f, err := dh.Flight(c.Request().Context(), fn, departureDate, departureAirport, true) | ||
| if err != nil { | ||
| return echo.NewHTTPError(http.StatusInternalServerError) | ||
| } | ||
|
|
||
| if f == nil { | ||
| now := time.Now() | ||
|
|
||
| feed.Created = now | ||
| feed.Updated = now | ||
| feed.Items = append(feed.Items, &feeds.Item{ | ||
| Id: feedId, | ||
| Title: "Flight no longer available", | ||
| Link: link, | ||
| Created: now, | ||
| Updated: now, | ||
| Content: "The flight is no longer available", | ||
| }) | ||
| } else { | ||
| feed.Created = f.Metadata.CreationTime | ||
| feed.Updated = f.Metadata.UpdateTime | ||
| feed.Items = append(feed.Items, &feeds.Item{ | ||
| Id: feedId, | ||
| Title: fmt.Sprintf("Flight %s from %s to %s on %s (local) updated", fn.String(), f.DepartureAirport, f.ArrivalAirport, f.DepartureTime.Format(time.DateOnly)), | ||
| Link: link, | ||
| Created: f.Metadata.CreationTime, | ||
| Updated: f.Metadata.UpdateTime, | ||
| Content: feedContent(f), | ||
| }) | ||
| } | ||
|
|
||
| c.Response().Header().Add(echo.HeaderContentType, contentType) | ||
| addExpirationHeaders(c, time.Now(), time.Hour) | ||
|
|
||
| _ = writer(feed, c.Response()) | ||
| return nil | ||
| } | ||
| } |