219 lines
7.6 KiB
Go
219 lines
7.6 KiB
Go
package server
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import (
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"embed"
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"fmt"
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"io/fs"
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"net/http"
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"os"
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"sort"
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"strconv"
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"github.com/gorilla/mux"
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"github.com/robertjanetzko/LegendsBrowser2/backend/model"
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"github.com/robertjanetzko/LegendsBrowser2/backend/templates"
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"github.com/robertjanetzko/LegendsBrowser2/backend/util"
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)
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type DfServerContext struct {
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world *model.DfWorld
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isLoading bool
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progress *model.LoadProgress
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}
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type DfServer struct {
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router *mux.Router
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loader *loadHandler
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templates *templates.Template
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context *DfServerContext
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}
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func StartServer(world *model.DfWorld, static embed.FS) {
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srv := &DfServer{
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router: mux.NewRouter().StrictSlash(true),
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context: &DfServerContext{
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world: world,
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isLoading: false,
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progress: &model.LoadProgress{},
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},
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}
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srv.loader = &loadHandler{server: srv}
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srv.LoadTemplates()
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srv.RegisterWorldPage("/entities", "entities.html", func(p Parms) any { return grouped(srv.context.world.Entities) })
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srv.RegisterWorldResourcePage("/entity/{id}", "entity.html", func(id int) any { return srv.context.world.Entities[id] })
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srv.RegisterWorldResourcePage("/popover/entity/{id}", "popoverEntity.html", func(id int) any { return srv.context.world.Entities[id] })
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srv.RegisterWorldPage("/regions", "regions.html", func(p Parms) any { return grouped(srv.context.world.Regions) })
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srv.RegisterWorldResourcePage("/region/{id}", "region.html", func(id int) any { return srv.context.world.Regions[id] })
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srv.RegisterWorldResourcePage("/popover/region/{id}", "popoverRegion.html", func(id int) any { return srv.context.world.Regions[id] })
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srv.RegisterWorldPage("/sites", "sites.html", func(p Parms) any { return grouped(srv.context.world.Sites) })
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srv.RegisterWorldResourcePage("/site/{id}", "site.html", func(id int) any { return srv.context.world.Sites[id] })
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srv.RegisterWorldResourcePage("/popover/site/{id}", "popoverSite.html", func(id int) any { return srv.context.world.Sites[id] })
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srv.RegisterWorldPage("/structures", "structures.html", func(p Parms) any {
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return flatGrouped(srv.context.world.Sites, func(s *model.Site) []*model.Structure { return util.Values(s.Structures) })
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})
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srv.RegisterWorldPage("/site/{siteId}/structure/{id}", "structure.html", srv.findStructure)
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srv.RegisterWorldPage("/popover/site/{siteId}/structure/{id}", "popoverStructure.html", srv.findStructure)
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srv.RegisterWorldPage("/worldconstructions", "worldconstructions.html", func(p Parms) any { return grouped(srv.context.world.WorldConstructions) })
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srv.RegisterWorldResourcePage("/worldconstruction/{id}", "worldconstruction.html", func(id int) any { return srv.context.world.WorldConstructions[id] })
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srv.RegisterWorldResourcePage("/popover/worldconstruction/{id}", "popoverWorldconstruction.html", func(id int) any { return srv.context.world.WorldConstructions[id] })
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srv.RegisterWorldPage("/artifacts", "artifacts.html", func(p Parms) any { return grouped(srv.context.world.Artifacts) })
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srv.RegisterWorldResourcePage("/artifact/{id}", "artifact.html", func(id int) any { return srv.context.world.Artifacts[id] })
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srv.RegisterWorldResourcePage("/popover/artifact/{id}", "popoverArtifact.html", func(id int) any { return srv.context.world.Artifacts[id] })
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srv.RegisterWorldPage("/artforms", "artforms.html", func(p Parms) any {
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return &struct {
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DanceForms map[string][]*model.DanceForm
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MusicalForms map[string][]*model.MusicalForm
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PoeticForms map[string][]*model.PoeticForm
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}{
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DanceForms: grouped(srv.context.world.DanceForms),
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MusicalForms: grouped(srv.context.world.MusicalForms),
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PoeticForms: grouped(srv.context.world.PoeticForms),
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}
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})
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srv.RegisterWorldPage("/writtencontents", "writtencontents.html", func(p Parms) any { return grouped(srv.context.world.WrittenContents) })
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srv.RegisterWorldResourcePage("/writtencontent/{id}", "writtencontent.html", func(id int) any { return srv.context.world.WrittenContents[id] })
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srv.RegisterWorldResourcePage("/popover/writtencontent/{id}", "popoverWrittencontent.html", func(id int) any { return srv.context.world.WrittenContents[id] })
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srv.RegisterWorldResourcePage("/hf/{id}", "hf.html", func(id int) any { return srv.context.world.HistoricalFigures[id] })
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srv.RegisterWorldResourcePage("/popover/hf/{id}", "popoverHf.html", func(id int) any { return srv.context.world.HistoricalFigures[id] })
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srv.RegisterWorldPage("/", "eventTypes.html", func(p Parms) any { return srv.context.world.AllEventTypes() })
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srv.RegisterWorldPage("/events", "eventTypes.html", func(p Parms) any { return srv.context.world.AllEventTypes() })
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srv.RegisterWorldPage("/events/{type}", "eventType.html", func(p Parms) any { return srv.context.world.EventsOfType(p["type"]) })
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srv.router.PathPrefix("/search").Handler(searchHandler{server: srv})
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srv.router.PathPrefix("/load").Handler(srv.loader)
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spa := spaHandler{server: srv, staticFS: static, staticPath: "static", indexPath: "index.html"}
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srv.router.PathPrefix("/").Handler(spa)
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OpenBrowser("http://localhost:8080")
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fmt.Println("Serving at :8080")
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http.ListenAndServe(":8080", srv.router)
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}
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func (srv *DfServer) findStructure(p Parms) any {
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siteId, err := strconv.Atoi(p["siteId"])
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if err != nil {
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return nil
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}
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structureId, err := strconv.Atoi(p["id"])
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if err != nil {
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return nil
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}
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if site, ok := srv.context.world.Sites[siteId]; ok {
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return site.Structures[structureId]
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}
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return nil
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}
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type spaHandler struct {
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server *DfServer
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staticFS embed.FS
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staticPath string
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indexPath string
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}
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func (h spaHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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// get the absolute path to prevent directory traversal
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path := r.URL.Path
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// if err != nil {
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// // if we failed to get the absolute path respond with a 400 bad request and stop
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// http.Error(w, err.Error(), http.StatusBadRequest)
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// return
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// }
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// prepend the path with the path to the static directory
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path = h.staticPath + path
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_, err := h.staticFS.Open(path)
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if os.IsNotExist(err) {
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// file does not exist, serve index.html
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fmt.Println(path)
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index, err := h.staticFS.ReadFile(h.staticPath + "/" + h.indexPath)
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if err != nil {
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h.server.notFound(w)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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w.WriteHeader(http.StatusAccepted)
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w.Write(index)
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return
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} else if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// get the subdirectory of the static dir
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statics, err := fs.Sub(h.staticFS, h.staticPath)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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// otherwise, use http.FileServer to serve the static dir
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http.FileServer(http.FS(statics)).ServeHTTP(w, r)
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}
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func (srv *DfServer) notFound(w http.ResponseWriter) {
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err := srv.templates.Render(w, "notFound.html", nil)
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if err != nil {
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httpError(w, err)
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}
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}
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func httpError(w http.ResponseWriter, err error) {
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fmt.Fprintln(w, err)
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fmt.Println(err)
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}
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type namedTyped interface {
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model.Named
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model.Typed
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}
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func flatGrouped[K comparable, U any, V namedTyped](input map[K]U, mapper func(U) []V) map[string][]V {
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output := make(map[string][]V)
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for _, x := range input {
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for _, v := range mapper(x) {
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k := v.Type()
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if v.Name() != "" {
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output[k] = append(output[k], v)
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}
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}
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}
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for _, v := range output {
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sort.Slice(v, func(i, j int) bool { return v[i].Name() < v[j].Name() })
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}
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return output
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}
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func grouped[K comparable, T namedTyped](input map[K]T) map[string][]T {
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output := make(map[string][]T)
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for _, v := range input {
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k := v.Type()
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if v.Name() != "" {
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output[k] = append(output[k], v)
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}
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}
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for _, v := range output {
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sort.Slice(v, func(i, j int) bool { return v[i].Name() < v[j].Name() })
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}
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return output
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}
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