Add channels to home page

core/channel.go

@@ -39,3 +39,29 @@ func GetSourcesInChannel(db DB) (map[string][]string, error) {
 	}
 	return channelSources, nil
 }
+
+func GetChannelsAndActiveCounts(db DB) (map[string]int, error) {
+	rows, err := db.Query(`
+		select c.name, count(i.id) as count
+		from channels c
+		left outer join items i on c.source = i.source and i.active = 1
+		group by c.name
+	`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	channelCounts := make(map[string]int)
+	for rows.Next() {
+		var name string
+		var count int
+		if err := rows.Scan(&name, &count); err != nil {
+			return nil, err
+		}
+		channelCounts[name] = count
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return channelCounts, nil
+}

core/channel_test.go

@@ -50,9 +50,17 @@ func TestChannel(t *testing.T) {
 	}); err != nil {
 		t.Fatalf("failed to add items to one: %v", err)
 	}
+	if counts, err := GetChannelsAndActiveCounts(db); counts["channel"] != 2 || err != nil {
+		t.Fatalf("expected 2 active items in channel, got %d: %v", counts["channel"], err)
+	}
+
 	if _, err := DeactivateItem(db, "one", "a"); err != nil {
 		t.Fatalf("failed to deactivate item: %v", err)
 	}
+	if counts, err := GetChannelsAndActiveCounts(db); counts["channel"] != 1 || err != nil {
+		t.Fatalf("expected 1 active items in channel, got %d: %v", counts["channel"], err)
+	}
+
 	items, err := GetAllItemsForChannel(db, "channel")
 	if err != nil {
 		t.Fatalf("failed to get all items in channel: %v", err)

web/channel.go

@@ -0,0 +1,30 @@
+package web
+
+import (
+	"net/http"
+
+	"github.com/Jaculabilis/intake/core"
+	"github.com/Jaculabilis/intake/web/html"
+)
+
+func (env *Env) getChannel(writer http.ResponseWriter, req *http.Request) {
+	channel := req.PathValue("channel")
+
+	var items []core.Item
+	var err error
+	inactive := req.URL.Query().Get("inactive") == "1"
+	if inactive {
+		items, err = core.GetAllItemsForChannel(env.db, channel)
+	} else {
+		items, err = core.GetActiveItemsForChannel(env.db, channel)
+	}
+	if err != nil {
+		http.Error(writer, err.Error(), 500)
+		return
+	}
+
+	data := html.FeedData{
+		Items: items,
+	}
+	html.Feed(writer, data)
+}

web/html/home.html

@@ -1,6 +1,25 @@
 {{ define "title" }}Intake{{ end }}
 
 {{ define "content" -}}
+<article>
+<details open>
+<summary><span class="item-title">Channels</span></summary>
+{{ if .Channels }}
+{{ range .Channels }}
+<p><a href="/channel/{{ .Name }}">
+{{ if .Active }}
+{{ .Name }} ({{ .Active }})
+{{ else }}
+{{ .Name }}
+{{ end }}
+</a></p>
+{{ end }}
+{{ else }}
+<p>No channels found.</p>
+{{ end }}
+</details>
+</article>
+
 <article>
 <details>
 <summary><span class="item-title">Sources</span></summary>

web/html/html.go

@@ -57,11 +57,17 @@ func load(files ...string) *template.Template {
 
 var home = load("home.html")
 
+type ChannelData struct {
+	Name   string
+	Active int
+}
+
 type SourceData struct {
 	Name string
 }
 
 type HomeData struct {
+	Channels []ChannelData
 	Sources  []SourceData
 }
 

web/main.go

@@ -31,6 +31,7 @@ func RunServer(db core.DB, addr string, port string) {
 	handleFunc("GET    /style.css", env.getStyle)
 	handleFunc("GET    /htmx.org@2.0.4.js", env.getScript)
 	handleFunc("GET    /source/{source}", env.getSource)
+	handleFunc("GET    /channel/{channel}", env.getChannel)
 	handleFunc("GET    /item/{source}/{id}", env.getItem)
 	handleFunc("DELETE /item/{source}/{id}", env.deleteItem)
 	handleFunc("POST   /item/{source}/{id}/action/{action}", env.doAction)

web/root.go

@@ -13,17 +13,27 @@ func (env *Env) getRoot(writer http.ResponseWriter, req *http.Request) {
 		return
 	}
 
-	names, err := core.GetSources(env.db)
+	sources, err := core.GetSources(env.db)
 	if err != nil {
 		http.Error(writer, err.Error(), 500)
 	}
-
-	var sources []html.SourceData
-	for _, name := range names {
-		sources = append(sources, html.SourceData{Name: name})
+	var sourceData []html.SourceData
+	for _, name := range sources {
+		sourceData = append(sourceData, html.SourceData{Name: name})
 	}
+
+	channels, err := core.GetChannelsAndActiveCounts(env.db)
+	if err != nil {
+		http.Error(writer, err.Error(), 500)
+	}
+	var channelData []html.ChannelData
+	for name, active := range channels {
+		channelData = append(channelData, html.ChannelData{Name: name, Active: active})
+	}
+
 	data := html.HomeData{
-		Sources: sources,
+		Channels: channelData,
+		Sources:  sourceData,
 	}
 	html.Home(writer, data)
 }

web/source.go

@@ -1,7 +1,6 @@
 package web
 
 import (
-	"log"
 	"net/http"
 
 	"github.com/Jaculabilis/intake/core"
@@ -18,7 +17,6 @@ func (env *Env) getSource(writer http.ResponseWriter, req *http.Request) {
 	var items []core.Item
 	var err error
 	inactive := req.URL.Query().Get("inactive") == "1"
-	log.Printf("inactive = %t", inactive)
 	if inactive {
 		items, err = core.GetAllItemsForSource(env.db, source)
 	} else {