Viewutil: Introduce ExecutePage

It reduces the number of boilerplate and guesses some stuff for us. Fighting the templates.

backlinks/web.go

@@ -2,12 +2,10 @@ package backlinks
 
 import (
 	"embed"
-	"github.com/bouncepaw/mycorrhiza/cfg"
 	"github.com/bouncepaw/mycorrhiza/hyphae"
 	"github.com/bouncepaw/mycorrhiza/util"
 	"github.com/bouncepaw/mycorrhiza/viewutil"
 	"github.com/gorilla/mux"
-	"log"
 	"net/http"
 	"sort"
 	"text/template"
@@ -62,41 +60,31 @@ var (
 )
 
 type backlinksData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	HyphaName string
 	Backlinks []string
 }
 
 func viewBacklinks(meta viewutil.Meta, hyphaName string, backlinks []string) {
-	if err := chainBacklinks.Get(meta).ExecuteTemplate(meta.W, "page", backlinksData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			Addr:          "/backlinks/" + hyphaName,
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
+	viewutil.ExecutePage(meta, chainBacklinks, backlinksData{
+		BaseData: &viewutil.BaseData{
+			Addr: "/backlinks/" + hyphaName,
 		},
 		HyphaName: hyphaName,
 		Backlinks: backlinks,
-	}); err != nil {
-		log.Println(err)
-	}
+	})
 }
 
 type orphansData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	Orphans []string
 }
 
 func viewOrphans(meta viewutil.Meta, orphans []string) {
-	if err := chainOrphans.Get(meta).ExecuteTemplate(meta.W, "page", orphansData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			Addr:          "/orphans",
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
+	viewutil.ExecutePage(meta, chainOrphans, orphansData{
+		BaseData: &viewutil.BaseData{
+			Addr: "/orphans",
 		},
 		Orphans: orphans,
-	}); err != nil {
-		log.Println(err)
-	}
+	})
 }

categories/views.go

@@ -2,7 +2,6 @@ package categories
 
 import (
 	"embed"
-	"github.com/bouncepaw/mycorrhiza/cfg"
 	"github.com/bouncepaw/mycorrhiza/viewutil"
 	"log"
 	"strings"
@@ -64,42 +63,33 @@ func CategoryCard(meta viewutil.Meta, hyphaName string) string {
 }
 
 type pageData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	CatName                 string
 	Hyphae                  []string
 	GivenPermissionToModify bool
 }
 
 func categoryPage(meta viewutil.Meta, catName string) {
-	if err := viewPageChain.Get(meta).ExecuteTemplate(meta.W, "page", pageData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
-			Addr:          "/category/" + catName,
+	viewutil.ExecutePage(meta, viewPageChain, pageData{
+		BaseData: &viewutil.BaseData{
+			Addr: "/category/" + catName,
 		},
 		CatName:                 catName,
 		Hyphae:                  hyphaeInCategory(catName),
 		GivenPermissionToModify: meta.U.CanProceed("add-to-category"),
-	}); err != nil {
-		log.Println(err)
-	}
+	})
 }
 
 type listData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	Categories []string
 }
 
 func categoryList(meta viewutil.Meta) {
-	if err := viewListChain.Get(meta).ExecuteTemplate(meta.W, "page", listData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
+	viewutil.ExecutePage(meta, viewListChain, listData{
+		BaseData: &viewutil.BaseData{
+			Addr: "/category",
 		},
 		Categories: listOfCategories(),
-	}); err != nil {
-		log.Println(err)
-	}
+	})
 }

help/web.go

@@ -3,11 +3,9 @@ package help
 // stuff.go is used for meta stuff about the wiki or all hyphae at once.
 import (
 	"github.com/bouncepaw/mycomarkup/v4"
-	"github.com/bouncepaw/mycorrhiza/cfg"
 	"github.com/bouncepaw/mycorrhiza/shroom"
 	"github.com/bouncepaw/mycorrhiza/viewutil"
 	"io"
-	"log"
 	"net/http"
 	"strings"
 	"text/template"
@@ -92,22 +90,17 @@ func handlerHelp(w http.ResponseWriter, rq *http.Request) {
 }
 
 type helpData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	ContentsHTML string
 	Lang         string
 }
 
 func viewHelp(meta viewutil.Meta, lang, contentsHTML, articlePath string) {
-	if err := chain.Get(meta).ExecuteTemplate(meta.W, "page", helpData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
-			Addr:          "/help/" + articlePath,
+	viewutil.ExecutePage(meta, chain, helpData{
+		BaseData: &viewutil.BaseData{
+			Addr: "/help/" + articlePath,
 		},
 		ContentsHTML: contentsHTML,
 		Lang:         lang,
-	}); err != nil {
-		log.Println(err)
-	}
+	})
 }

history/histview/histview.go

@@ -10,7 +10,6 @@ import (
 	"github.com/bouncepaw/mycorrhiza/util"
 	"github.com/bouncepaw/mycorrhiza/viewutil"
 	"github.com/gorilla/mux"
-	"log"
 	"net/http"
 	"strconv"
 	"strings"
@@ -79,12 +78,13 @@ var (
 {{define "diff for at heading"}}Разница для <a href="/hypha/{{.HyphaName}}">{{beautifulName .HyphaName}}</a> для {{.Hash}}{{end}}
 
 `
+	// TODO: translate recent changes
 	chainPrimitiveDiff viewutil.Chain
 	chainRecentChanges viewutil.Chain
 )
 
 type recentChangesData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	EditCount int
 	Changes   []history.Revision
 	UserHypha string
@@ -92,41 +92,27 @@ type recentChangesData struct {
 }
 
 func recentChanges(meta viewutil.Meta, editCount int, changes []history.Revision) {
-	if err := chainRecentChanges.Get(meta).ExecuteTemplate(meta.W, "page", recentChangesData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			Addr:          "/recent-changes/" + strconv.Itoa(editCount),
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
-		},
+	viewutil.ExecutePage(meta, chainRecentChanges, recentChangesData{
+		BaseData:  &viewutil.BaseData{},
 		EditCount: editCount,
 		Changes:   changes,
 		UserHypha: cfg.UserHypha,
 		Stops:     []int{20, 50, 100},
-	}); err != nil {
-		log.Println(err)
-	}
+	})
 }
 
 type primitiveDiffData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	HyphaName string
 	Hash      string
 	Text      string
 }
 
 func primitiveDiff(meta viewutil.Meta, h hyphae.ExistingHypha, hash, text string) {
-	if err := chainPrimitiveDiff.Get(meta).ExecuteTemplate(meta.W, "page", primitiveDiffData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			Addr:          "/primitive-diff/" + hash + "/" + h.CanonicalName(),
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
-		},
+	viewutil.ExecutePage(meta, chainPrimitiveDiff, primitiveDiffData{
+		BaseData:  &viewutil.BaseData{},
 		HyphaName: h.CanonicalName(),
 		Hash:      hash,
 		Text:      text,
-	}); err != nil {
-		log.Println(err)
-	}
+	})
 }

misc/handlers.go

@@ -19,6 +19,7 @@ import (
 	"math/rand"
 	"mime"
 	"net/http"
+	"path/filepath"
 )
 
 func InitHandlers(rtr *mux.Router) {
@@ -41,7 +42,25 @@ func InitHandlers(rtr *mux.Router) {
 // handlerList shows a list of all hyphae in the wiki in random order.
 func handlerList(w http.ResponseWriter, rq *http.Request) {
 	util.PrepareRq(rq)
-	viewList(viewutil.MetaFrom(w, rq))
+	// TODO: make this more effective, there are too many loops and vars
+	var (
+		hyphaNames  = make(chan string)
+		sortedHypha = hyphae.PathographicSort(hyphaNames)
+		entries     []listDatum
+	)
+	for hypha := range hyphae.YieldExistingHyphae() {
+		hyphaNames <- hypha.CanonicalName()
+	}
+	close(hyphaNames)
+	for hyphaName := range sortedHypha {
+		switch h := hyphae.ByName(hyphaName).(type) {
+		case *hyphae.TextualHypha:
+			entries = append(entries, listDatum{h.CanonicalName(), ""})
+		case *hyphae.MediaHypha:
+			entries = append(entries, listDatum{h.CanonicalName(), filepath.Ext(h.MediaFilePath())[1:]})
+		}
+	}
+	viewList(viewutil.MetaFrom(w, rq), entries)
 }
 
 // handlerReindex reindexes all hyphae by checking the wiki storage directory anew.

misc/views.go

@@ -2,11 +2,7 @@ package misc
 
 import (
 	"embed"
-	"github.com/bouncepaw/mycorrhiza/cfg"
-	"github.com/bouncepaw/mycorrhiza/hyphae"
 	"github.com/bouncepaw/mycorrhiza/viewutil"
-	"log"
-	"path/filepath"
 	"text/template"
 )
 
@@ -39,58 +35,27 @@ type listDatum struct {
 }
 
 type listData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	Entries []listDatum
 }
 
-func viewList(meta viewutil.Meta) {
-	// TODO: make this more effective, there are too many loops and vars
-	var (
-		hyphaNames  = make(chan string)
-		sortedHypha = hyphae.PathographicSort(hyphaNames)
-		data        []listDatum
-	)
-	for hypha := range hyphae.YieldExistingHyphae() {
-		hyphaNames <- hypha.CanonicalName()
-	}
-	close(hyphaNames)
-	for hyphaName := range sortedHypha {
-		switch h := hyphae.ByName(hyphaName).(type) {
-		case *hyphae.TextualHypha:
-			data = append(data, listDatum{h.CanonicalName(), ""})
-		case *hyphae.MediaHypha:
-			data = append(data, listDatum{h.CanonicalName(), filepath.Ext(h.MediaFilePath())[1:]})
-		}
-	}
-
-	if err := chainList.Get(meta).ExecuteTemplate(meta.W, "page", listData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
-		},
-		Entries: data,
-	}); err != nil {
-		log.Println(err)
-	}
+func viewList(meta viewutil.Meta, entries []listDatum) {
+	viewutil.ExecutePage(meta, chainList, listData{
+		BaseData: &viewutil.BaseData{},
+		Entries:  entries,
+	})
 }
 
 type titleSearchData struct {
-	viewutil.BaseData
+	*viewutil.BaseData
 	Query   string
 	Results []string
 }
 
 func viewTitleSearch(meta viewutil.Meta, query string, results []string) {
-	if err := chainTitleSearch.Get(meta).ExecuteTemplate(meta.W, "page", titleSearchData{
-		BaseData: viewutil.BaseData{
-			Meta:          meta,
-			HeaderLinks:   cfg.HeaderLinks,
-			CommonScripts: cfg.CommonScripts,
-		},
-		Query:   query,
-		Results: results,
-	}); err != nil {
-		log.Println(err)
-	}
+	viewutil.ExecutePage(meta, chainTitleSearch, titleSearchData{
+		BaseData: &viewutil.BaseData{},
+		Query:    query,
+		Results:  results,
+	})
 }

viewutil/viewutil.go

@@ -96,6 +96,12 @@ type BaseData struct {
 	Body          string // TODO: remove
 }
 
+func (bd *BaseData) withBaseValues(meta Meta, headerLinks []cfg.HeaderLink, commonScripts []string) {
+	bd.Meta = meta
+	bd.HeaderLinks = headerLinks
+	bd.CommonScripts = commonScripts
+}
+
 // Base is a temporary wrapper around BaseEn and BaseRu, meant to facilitate the migration from qtpl.
 func Base(meta Meta, title, body string, headElements ...string) string {
 	var w strings.Builder
@@ -122,3 +128,13 @@ func CopyEnWith(fsys fs.FS, f string) *template.Template {
 func CopyRuWith(fsys fs.FS, f string) *template.Template {
 	return m(m(BaseRu.Clone()).ParseFS(fsys, f))
 }
+
+// ExecutePage executes template page in the given chain with the given data that has BaseData nested. It also sets some common BaseData fields
+func ExecutePage(meta Meta, chain Chain, data interface {
+	withBaseValues(meta Meta, headerLinks []cfg.HeaderLink, commonScripts []string)
+}) {
+	data.withBaseValues(meta, cfg.HeaderLinks, cfg.CommonScripts)
+	if err := chain.Get(meta).ExecuteTemplate(meta.W, "page", data); err != nil {
+		log.Println(err)
+	}
+}