Refactor constants.go: improve organization and alignment

.gitignore

@@ -3,3 +3,4 @@
 .env
 articles.db*
 gomeshalerter
+*.bak

Makefile

@@ -1,10 +1,13 @@
 default: clean run
 
 clean:
-	rm -f gomeshalerter
+	rm -f gomeshalerter *.json
 
 run: gomeshalerter
 	exec ./gomeshalerter
 
 gomeshalerter: *.go
 	go build -o gomeshalerter .
+
+lint:
+	golangci-lint run

broadcaster.go

@@ -10,15 +10,19 @@ import (
 	"time"
 )
 
-// broadcaster runs on startup and every hour to select and broadcast the most important article
+// broadcaster runs on startup and frequently checks if a broadcast is due
 func broadcaster(shutdown chan struct{}, dryRun bool) {
-	logInfo("broadcaster", fmt.Sprintf("Starting broadcaster (waiting %d seconds before first broadcast)", int(STARTUP_DELAY.Seconds())), map[string]interface{}{
-		"interval": BROADCAST_INTERVAL.String(),
-		"dryRun":   dryRun,
+	logInfo("broadcaster", "Starting broadcaster", map[string]interface{}{
+		"startupDelay":    int(STARTUP_DELAY.Seconds()),
+		"checkInterval":   BROADCAST_CHECK_INTERVAL.String(),
+		"broadcastWindow": BROADCAST_INTERVAL.String(),
+		"dryRun":          dryRun,
 	})
 
 	// Sleep on startup
-	logInfo("broadcaster", fmt.Sprintf("Sleeping for %d seconds before first broadcast", int(STARTUP_DELAY.Seconds())), nil)
+	logInfo("broadcaster", "Sleeping before first broadcast check", map[string]interface{}{
+		"seconds": int(STARTUP_DELAY.Seconds()),
+	})
 	select {
 	case <-time.After(STARTUP_DELAY):
 		// Continue after sleep
@@ -27,17 +31,41 @@ func broadcaster(shutdown chan struct{}, dryRun bool) {
 		return
 	}
 
-	// Run immediately after initial sleep
-	checkAndBroadcast(dryRun)
+	// Initialize the last broadcast time from the database
+	lastBroadcastTime := getLastBroadcastTime()
 
-	// Then run on interval
-	ticker := time.NewTicker(BROADCAST_INTERVAL)
+	if !lastBroadcastTime.IsZero() {
+		logInfo("broadcaster", "Initialized last broadcast time from database", map[string]interface{}{
+			"lastBroadcastTime": lastBroadcastTime.Format(time.RFC3339),
+			"timeSince":         time.Since(lastBroadcastTime).String(),
+		})
+	} else {
+		logInfo("broadcaster", "No previous broadcast time found in database", nil)
+	}
+
+	// Run checks frequently
+	ticker := time.NewTicker(BROADCAST_CHECK_INTERVAL)
 	defer ticker.Stop()
 
 	for {
 		select {
 		case <-ticker.C:
-			checkAndBroadcast(dryRun)
+			now := time.Now()
+			timeSinceLastBroadcast := now.Sub(lastBroadcastTime)
+
+			// If it's been at least BROADCAST_INTERVAL since last broadcast
+			// or if we haven't broadcast yet (lastBroadcastTime is zero)
+			if lastBroadcastTime.IsZero() || timeSinceLastBroadcast >= BROADCAST_INTERVAL {
+				logInfo("broadcaster", "Broadcast window reached, checking conditions", map[string]interface{}{
+					"timeSinceLastBroadcast": timeSinceLastBroadcast.String(),
+					"requiredInterval":       BROADCAST_INTERVAL.String(),
+				})
+
+				// Only update lastBroadcastTime if we actually broadcast something
+				if didBroadcast := checkAndBroadcast(dryRun); didBroadcast {
+					lastBroadcastTime = now
+				}
+			}
 		case <-shutdown:
 			logInfo("broadcaster", "Shutting down broadcaster", nil)
 			return
@@ -46,7 +74,8 @@ func broadcaster(shutdown chan struct{}, dryRun bool) {
 }
 
 // checkAndBroadcast checks if there are any unsummarized articles before broadcasting
-func checkAndBroadcast(dryRun bool) {
+// Returns true if a broadcast was made
+func checkAndBroadcast(dryRun bool) bool {
 	// Check if there are any unsummarized articles
 	articles := loadArticles()
 	unsummarizedCount := 0
@@ -62,15 +91,16 @@ func checkAndBroadcast(dryRun bool) {
 			"unsummarizedCount": unsummarizedCount,
 			"totalArticles":     len(articles),
 		})
-		return
+		return false
 	}
 
 	// No unsummarized articles, proceed with broadcast
-	broadcastWithRedundancyCheck(dryRun)
+	return broadcastWithRedundancyCheck(dryRun)
 }
 
 // broadcastWithRedundancyCheck attempts to find a non-redundant article to broadcast
-func broadcastWithRedundancyCheck(dryRun bool) {
+// Returns true if a broadcast was made
+func broadcastWithRedundancyCheck(dryRun bool) bool {
 	articles := loadArticles()
 	now := time.Now()
 	cutoff := now.Add(-ARTICLE_FRESHNESS_WINDOW) // Time window for considering articles fresh
@@ -87,7 +117,7 @@ func broadcastWithRedundancyCheck(dryRun bool) {
 		logInfo("broadcaster", "No fresh articles found for broadcasting", map[string]interface{}{
 			"totalArticles": len(articles),
 		})
-		return
+		return false
 	}
 
 	// Sort by importance
@@ -111,7 +141,7 @@ func broadcastWithRedundancyCheck(dryRun bool) {
 			})
 			// Continue with this candidate despite the error
 			broadcastArticle(candidate, dryRun)
-			return
+			return true
 		}
 
 		if isRedundant {
@@ -138,13 +168,14 @@ func broadcastWithRedundancyCheck(dryRun bool) {
 			"candidateNumber": i + 1,
 		})
 		broadcastArticle(candidate, dryRun)
-		return
+		return true
 	}
 
 	// If we got here, all candidates were redundant
 	logInfo("broadcaster", "All candidates were deemed redundant, no broadcast", map[string]interface{}{
 		"candidatesChecked": len(candidates),
 	})
+	return false
 }
 
 // broadcastArticle broadcasts the chosen article
@@ -169,7 +200,8 @@ func broadcastArticle(chosen Article, dryRun bool) {
 		maxSummaryLen := MAX_MESSAGE_LENGTH - len(ts) - len(sourceAbbr) - len(": [] [AI/LLM] ") - 3 // 3 for "..."
 		truncatedSummary := strings.TrimSpace(chosen.Summary)[:maxSummaryLen] + "..."
 		msg = fmt.Sprintf("%s: [%s] [AI/LLM] %s", ts, sourceAbbr, truncatedSummary)
-		logInfo("broadcaster", fmt.Sprintf("Message truncated to fit %d character limit", MAX_MESSAGE_LENGTH), map[string]interface{}{
+		logInfo("broadcaster", "Message truncated to fit character limit", map[string]interface{}{
+			"limit":           MAX_MESSAGE_LENGTH,
 			"originalLength":  len(chosen.Summary),
 			"truncatedLength": maxSummaryLen,
 		})
@@ -189,7 +221,9 @@ func broadcastArticle(chosen Article, dryRun bool) {
 	})
 
 	// Wait before broadcasting to allow time to see the message
-	logInfo("broadcaster", fmt.Sprintf("Waiting %d seconds before broadcasting...", int(BROADCAST_PREPARATION_DELAY.Seconds())), nil)
+	logInfo("broadcaster", "Waiting before broadcasting", map[string]interface{}{
+		"seconds": int(BROADCAST_PREPARATION_DELAY.Seconds()),
+	})
 	time.Sleep(BROADCAST_PREPARATION_DELAY)
 
 	// Update broadcast time and save to database

constants.go

@@ -0,0 +1,119 @@
+package main
+
+import (
+	"time"
+)
+
+// Application constants
+const (
+	// Database
+	dbPath = "articles.db"
+
+	// LLM system prompt
+	SYSTEM_PROMPT = "You are a news analyst."
+
+	// LLM batch processing settings
+	BATCH_SIZE                = 5
+	MAX_INDIVIDUAL_PROCESSING = 50
+
+	// Timing constants
+	RSS_CHECK_INTERVAL          = 15 * time.Minute
+	SUMMARIZE_INTERVAL          = 10 * time.Second
+	BROADCAST_INTERVAL          = 1 * time.Hour
+	BROADCAST_CHECK_INTERVAL    = 10 * time.Second // Interval to check if broadcasting is needed
+	DEVICE_REBOOT_INTERVAL      = 6 * time.Hour    // Interval to reboot Meshtastic device
+	STARTUP_DELAY               = 60 * time.Second // Delay before first broadcast
+	BROADCAST_PREPARATION_DELAY = 30 * time.Second // Delay before executing broadcast command
+	ARTICLE_FRESHNESS_WINDOW    = 24 * time.Hour   // Time window for considering articles fresh
+
+	// Message limits
+	MAX_MESSAGE_LENGTH = 200  // Maximum length of broadcast messages in characters
+	MAX_LOG_ENTRIES    = 1000 // Maximum number of log entries to keep in memory
+)
+
+// ANSI color codes for colorized logging
+const (
+	colorReset  = "\033[0m"
+	colorRed    = "\033[31m"
+	colorGreen  = "\033[32m"
+	colorYellow = "\033[33m"
+	colorBlue   = "\033[34m"
+	colorPurple = "\033[35m"
+	colorCyan   = "\033[36m"
+	colorGray   = "\033[37m"
+	colorWhite  = "\033[97m"
+	bold        = "\033[1m"
+)
+
+// Main LLM prompt for article summarization
+const ARTICLES_PROMPT = `Summarize each of these news items in under 165
+characters, optimizing for information density (common news headline
+abbreviations OK) and rate their importance from 1 to 100.
+
+100 means most important; 1 means least important.
+
+Never rate over 90 unless it is a massive event such as: war outbreak,
+revolution, death of a head of state, large-scale natural disaster, mass
+casualty terrorism, etc.
+
+Rank any headlines primarily promoting commercial products or
+services as 1 (lowest importance).
+
+Rank any article with a headline that poses a question without providing an
+answer (as an attempt to lure a reader into clicking a link) as 1 (lowest
+importance).
+
+Boost the importance score by 10 points for breaking news that is less than 60
+minutes old based on its original publication date (which is provided for each
+article), but only for time-critical events that need to be reported in minutes,
+such as currently unfolding events.  Don't boost the importance score simply because
+it was recently published, unless it is a time-critical event.
+
+Do not editorialize or otherwise label the summary.
+
+For each article, return a JSON object with "id", "summary", and "importance"
+fields.  Return your response as a JSON array of objects like: [{"id":
+"article_id", "summary": "...", "importance": 42}, ...] 
+
+Here are the articles:
+`
+
+// Map of source names to their abbreviations
+var sourceAbbreviations = map[string]string{
+	"BBC":             "BBC",
+	"CNN":             "CNN",
+	"NYTimes":         "NYT",
+	"Guardian":        "Grd",
+	"Al Jazeera":      "AlJ",
+	"NBC":             "NBC",
+	"ABC":             "ABC",
+	"CBS":             "CBS",
+	"Sky News":        "Sky",
+	"Time":            "Time",
+	"NPR":             "NPR",
+	"Deutsche Welle":  "DW",
+	"France 24":       "F24",
+	"The Independent": "Ind",
+	"Washington Post": "WaPo",
+	"WSJ":             "WSJ",
+}
+
+// RSS feed URLs
+var feeds = map[string]string{
+	"BBC":             "https://feeds.bbci.co.uk/news/world/rss.xml",
+	"CNN":             "http://rss.cnn.com/rss/edition.rss",
+	"NYTimes":         "https://rss.nytimes.com/services/xml/rss/nyt/World.xml",
+	"Guardian":        "https://www.theguardian.com/world/rss",
+	"Al Jazeera":      "https://www.aljazeera.com/xml/rss/all.xml",
+	"NBC":             "http://feeds.nbcnews.com/nbcnews/public/news",
+	"ABC":             "https://abcnews.go.com/abcnews/topstories",
+	"CBS":             "https://www.cbsnews.com/latest/rss/world",
+	"Sky News":        "https://feeds.skynews.com/feeds/rss/world.xml",
+	"Time":            "https://time.com/feed/",
+	"NPR":             "https://feeds.npr.org/1001/rss.xml",
+	"Deutsche Welle":  "https://rss.dw.com/rdf/rss-en-world",
+	"France 24":       "https://www.france24.com/en/rss",
+	"The Independent": "https://www.independent.co.uk/news/world/rss",
+	"Washington Post": "https://feeds.washingtonpost.com/rss/world",
+	"WSJ":             "https://feeds.a.dj.com/rss/RSSWorldNews.xml",
+}

device.go

@@ -0,0 +1,75 @@
+package main
+
+import (
+	"os"
+	"os/exec"
+	"time"
+)
+
+// deviceManager handles periodic maintenance of the Meshtastic device
+func deviceManager(shutdown chan struct{}, dryRun bool) {
+	logInfo("device", "Starting device manager", map[string]interface{}{
+		"rebootInterval": DEVICE_REBOOT_INTERVAL.String(),
+		"dryRun":         dryRun,
+	})
+
+	// Wait some time before first reboot to allow system startup
+	initialDelay := 5 * time.Minute
+	logInfo("device", "Waiting before first device reboot", map[string]interface{}{
+		"initialDelay": initialDelay.String(),
+	})
+
+	select {
+	case <-time.After(initialDelay):
+		// Continue after delay
+	case <-shutdown:
+		logInfo("device", "Shutdown signal received during initial delay", nil)
+		return
+	}
+
+	// Reboot immediately after startup delay
+	rebootDevice(dryRun)
+
+	// Then run on interval
+	ticker := time.NewTicker(DEVICE_REBOOT_INTERVAL)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ticker.C:
+			rebootDevice(dryRun)
+		case <-shutdown:
+			logInfo("device", "Shutting down device manager", nil)
+			return
+		}
+	}
+}
+
+// rebootDevice executes the meshtastic --reboot command
+func rebootDevice(dryRun bool) {
+	cmdStr := "meshtastic --reboot"
+
+	logInfo("device", "Rebooting Meshtastic device", map[string]interface{}{
+		"command": cmdStr,
+		"dryRun":  dryRun,
+		"time":    time.Now().Format("15:04:05 MST"),
+	})
+
+	if dryRun {
+		logInfo("device", "DRY RUN - would execute device reboot", nil)
+		return
+	}
+
+	// Execute the reboot command
+	cmd := exec.Command("meshtastic", "--reboot")
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	if err := cmd.Run(); err != nil {
+		logInfo("device", "Device reboot failed", map[string]interface{}{
+			"error": err.Error(),
+		})
+	} else {
+		logInfo("device", "Device reboot successful", nil)
+	}
+}

go.mod

@@ -15,6 +15,7 @@ require (
 	github.com/mmcdole/goxpp v1.1.1-0.20240225020742-a0c311522b23 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/oklog/ulid/v2 v2.1.1 // indirect
 	golang.org/x/net v0.4.0 // indirect
 	golang.org/x/text v0.5.0 // indirect
 )

go.sum

@@ -21,6 +21,9 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
+github.com/oklog/ulid/v2 v2.1.1 h1:suPZ4ARWLOJLegGFiZZ1dFAkqzhMjL3J1TzI+5wHz8s=
+github.com/oklog/ulid/v2 v2.1.1/go.mod h1:rcEKHmBBKfef9DhnvX7y1HZBYxjXb0cP5ExxNsTT1QQ=
+github.com/pborman/getopt v0.0.0-20170112200414-7148bc3a4c30/go.mod h1:85jBQOZwpVEaDAr341tbn15RS4fCAsIst0qp7i8ex1o=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=

llm.go

@@ -25,7 +25,9 @@ type SummaryResult struct {
 
 // articleSummarizer checks for articles without summaries every 10 seconds and processes them in batches
 func articleSummarizer(shutdown chan struct{}, ollamaURL, ollamaModel string) {
-	fmt.Fprintf(os.Stderr, "[summarizer] Starting article summarizer (interval: %s)\n", SUMMARIZE_INTERVAL)
+	logInfo("summarizer", "Starting article summarizer", map[string]interface{}{
+		"interval": SUMMARIZE_INTERVAL.String(),
+	})
 
 	ticker := time.NewTicker(SUMMARIZE_INTERVAL)
 	defer ticker.Stop()
@@ -35,7 +37,7 @@ func articleSummarizer(shutdown chan struct{}, ollamaURL, ollamaModel string) {
 		case <-ticker.C:
 			summarizeArticles(ollamaURL, ollamaModel)
 		case <-shutdown:
-			fmt.Fprintf(os.Stderr, "[summarizer] Shutting down article summarizer\n")
+			logInfo("summarizer", "Shutting down article summarizer", nil)
 			return
 		}
 	}
@@ -84,9 +86,11 @@ func summarizeArticles(ollamaURL, ollamaModel string) {
 			batchInfo = append(batchInfo, a.ID[:8])
 		}
 
-		logInfo("summarizer", fmt.Sprintf("Processing batch %d to %d", i+1, end), map[string]interface{}{
+		logInfo("summarizer", "Processing batch", map[string]interface{}{
 			"batchSize": len(batch),
 			"batchIds":  strings.Join(batchInfo, ","),
+			"startItem": i + 1,
+			"endItem":   end,
 		})
 
 		startTime := time.Now()
@@ -106,6 +110,16 @@ func summarizeArticles(ollamaURL, ollamaModel string) {
 		for id, result := range summaries {
 			for _, article := range batch {
 				if article.ID == id {
+					// Log the summary details for each article
+					logInfo("summary_result", "LLM generated summary", map[string]interface{}{
+						"id":         article.ID,
+						"title":      article.Title,
+						"summary":    result.Summary,
+						"importance": result.Importance,
+						"source":     article.Source,
+						"length":     len(result.Summary),
+					})
+
 					article.Summary = result.Summary
 					article.Importance = result.Importance
 					if err := updateArticle(article); err != nil {

main.go

@@ -3,8 +3,7 @@ package main
 import (
 	"database/sql"
 	"flag"
-	"fmt"
-	"log"
+	"log/slog"
 	"os"
 	"os/signal"
 	"sync"
@@ -25,30 +24,37 @@ var (
 )
 
 func main() {
-	fmt.Fprintf(os.Stderr, "[%s] starting gomeshalerter\n", runStart.Format("15:04:05"))
 	setupLogging()
 	defer flushLog()
 
+	logInfo("main", "Starting gomeshalerter", map[string]interface{}{
+		"timestamp": runStart.Format("15:04:05"),
+	})
+
 	var err error
 	db, err = sql.Open("sqlite3", dbPath+"?_journal=WAL") // Use WAL mode for better concurrency
 	if err != nil {
-		log.Fatalf("Failed to open database: %v", err)
+		slog.Error("Failed to open database", "error", err)
+		os.Exit(1)
 	}
 
 	// Define a cleanup function to properly close resources
 	cleanup := func() {
-		fmt.Fprintf(os.Stderr, "[shutdown] Closing database...\n")
+		logInfo("shutdown", "Closing database", nil)
 		if err := db.Close(); err != nil {
-			fmt.Fprintf(os.Stderr, "[shutdown] Error closing database: %v\n", err)
+			logInfo("shutdown", "Error closing database", map[string]interface{}{
+				"error": err.Error(),
+			})
 		}
 		flushLog()
-		fmt.Fprintf(os.Stderr, "[shutdown] Cleanup complete\n")
+		logInfo("shutdown", "Cleanup complete", nil)
 	}
 	// Ensure cleanup runs on normal exit
 	defer cleanup()
 
 	if err := setupDatabase(); err != nil {
-		log.Fatalf("Failed to setup database: %v", err)
+		slog.Error("Failed to setup database", "error", err)
+		os.Exit(1)
 	}
 
 	ollamaModel := "qwen3:32b"
@@ -57,7 +63,10 @@ func main() {
 		ollamaURL = "http://localhost:11434" // Default Ollama server URL
 	}
 
-	fmt.Fprintf(os.Stderr, "[ollama] Using model: %s at %s\n", ollamaModel, ollamaURL)
+	logInfo("ollama", "Using model", map[string]interface{}{
+		"model": ollamaModel,
+		"url":   ollamaURL,
+	})
 
 	// Replace --broadcast flag with --dry-run flag (default is to broadcast)
 	dryRun := flag.Bool("dry-run", false, "don't actually send to meshtastic, just print what would be sent")
@@ -75,9 +84,9 @@ func main() {
 
 	go func() {
 		<-sigChan
-		fmt.Fprintf(os.Stderr, "[shutdown] Received signal, performing cleanup before exit...\n")
+		logInfo("shutdown", "Received signal, performing cleanup before exit", nil)
 		cleanup()
-		fmt.Fprintf(os.Stderr, "[shutdown] Exiting...\n")
+		logInfo("shutdown", "Exiting", nil)
 		os.Exit(0) // Exit after cleanup
 	}()
 
@@ -116,7 +125,14 @@ func main() {
 		logCleanupWorker(shutdown)
 	}()
 
+	// Start device manager goroutine for periodic device maintenance
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		deviceManager(shutdown, *dryRun)
+	}()
+
 	// Wait for all goroutines to finish
 	wg.Wait()
-	fmt.Fprintf(os.Stderr, "[shutdown] All goroutines stopped, exiting...\n")
+	logInfo("shutdown", "All goroutines stopped, exiting", nil)
 }

models.go

@@ -5,18 +5,20 @@ import (
 )
 
 type Article struct {
-	Title         string    `json:"title"`
-	Description   string    `json:"description"`
-	Link          string    `json:"link"`
-	Published     time.Time `json:"published"`    // When we first saw the article
-	OriginalDate  time.Time `json:"originalDate"` // Original publication date from the feed
-	Source        string    `json:"source"`
-	FirstSeen     time.Time `json:"firstseen"`
-	Seen          time.Time `json:"seen"`
-	Summary       string    `json:"summary"`
-	Importance    int       `json:"importance"`
-	ID            string    `json:"id"`
-	BroadcastTime time.Time `json:"broadcastTime,omitempty"`
+	Title                 string    `json:"title"`
+	Description           string    `json:"description"`
+	Link                  string    `json:"link"`
+	Published             time.Time `json:"published"`    // When we first saw the article
+	OriginalDate          time.Time `json:"originalDate"` // Original publication date from the feed
+	Source                string    `json:"source"`
+	FirstSeen             time.Time `json:"firstseen"`
+	Seen                  time.Time `json:"seen"`
+	Summary               string    `json:"summary"`
+	Importance            int       `json:"importance"`
+	ID                    string    `json:"id"`
+	BroadcastTime         time.Time `json:"broadcastTime,omitempty"`
+	RelativeTime          string    `json:"-"` // Relative time for FirstSeen (calculated field, not stored)
+	BroadcastRelativeTime string    `json:"-"` // Relative time for BroadcastTime (calculated field, not stored)
 }
 
 type LogEntry struct {
@@ -32,56 +34,9 @@ type DashboardData struct {
 	TotalBroadcast    int
 	NewInLastHour     int
 	UnsummarizedCount int
+	NextBroadcastIn   string    // Time until the next broadcast attempt
+	LastBroadcastTime time.Time // When the last broadcast occurred
 	NextUp            []Article
 	History           []Article
 	RecentLogs        []LogEntry
 }
-
-const (
-	dbPath = "articles.db"
-
-	// LLM prompts
-	ARTICLES_PROMPT = `Summarize each of these news items in under 165
-	characters, optimizing for information density (common news headline
-	abbreviations OK) and rate their importance from 1 to 100.
-
-100 means most important; 1 means least important.
-
-Never rate over 90 unless it is a massive event such as: war outbreak,
-revolution, death of a head of state, large-scale natural disaster, mass
-casualty terrorism, etc.
-
-IMPORTANT: Rank any headlines primarily promoting commercial products or
-services as 1 (lowest importance).
-
-Rank any article with a headline that poses a question without providing an
-answer (as an attempt to lure a reader into clicking a link) as 1 (lowest
-importance).
-
-IMPORTANT: Boost the importance score by 10-20 points for breaking news that is less
-than 60 minutes old based on its original publication date (which is provided for each article).
-This helps ensure timely distribution of very recent news.
-
-For each article, return a JSON object with "id", "summary", and "importance"
-fields.  Return your response as a JSON array of objects like: [{"id":
-"article_id", "summary": "...", "importance": 42}, ...] 
-
-Here are the articles:
-`
-
-	SYSTEM_PROMPT             = "You are a news analyst."
-	BATCH_SIZE                = 10
-	MAX_INDIVIDUAL_PROCESSING = 50
-
-	// Timing constants
-	RSS_CHECK_INTERVAL          = 15 * time.Minute
-	SUMMARIZE_INTERVAL          = 10 * time.Second
-	BROADCAST_INTERVAL          = 1 * time.Hour
-	STARTUP_DELAY               = 60 * time.Second // Delay before first broadcast
-	BROADCAST_PREPARATION_DELAY = 30 * time.Second // Delay before executing broadcast command
-	ARTICLE_FRESHNESS_WINDOW    = 24 * time.Hour   // Time window for considering articles fresh
-
-	// Other constants
-	MAX_MESSAGE_LENGTH = 200  // Maximum length of broadcast messages in characters
-	MAX_LOG_ENTRIES    = 1000 // Maximum number of log entries to keep in memory
-)

rss.go

@@ -1,59 +1,20 @@
 package main
 
 import (
-	"fmt"
 	"net/http"
-	"os"
 	"sync"
 	"time"
 
 	"github.com/mmcdole/gofeed"
 )
 
-// Map of source names to their abbreviations
-var sourceAbbreviations = map[string]string{
-	"BBC":             "BBC",
-	"CNN":             "CNN",
-	"NYTimes":         "NYT",
-	"Guardian":        "Grd",
-	"Al Jazeera":      "AlJ",
-	"NBC":             "NBC",
-	"ABC":             "ABC",
-	"CBS":             "CBS",
-	"Sky News":        "Sky",
-	"Time":            "Time",
-	"NPR":             "NPR",
-	"Deutsche Welle":  "DW",
-	"France 24":       "F24",
-	"The Independent": "Ind",
-	"Washington Post": "WaPo",
-	"WSJ":             "WSJ",
-}
-
-var feeds = map[string]string{
-	"BBC":             "https://feeds.bbci.co.uk/news/world/rss.xml",
-	"CNN":             "http://rss.cnn.com/rss/edition.rss",
-	"NYTimes":         "https://rss.nytimes.com/services/xml/rss/nyt/World.xml",
-	"Guardian":        "https://www.theguardian.com/world/rss",
-	"Al Jazeera":      "https://www.aljazeera.com/xml/rss/all.xml",
-	"NBC":             "http://feeds.nbcnews.com/nbcnews/public/news",
-	"ABC":             "https://abcnews.go.com/abcnews/topstories",
-	"CBS":             "https://www.cbsnews.com/latest/rss/world",
-	"Sky News":        "https://feeds.skynews.com/feeds/rss/world.xml",
-	"Time":            "https://time.com/feed/",
-	"NPR":             "https://feeds.npr.org/1001/rss.xml",
-	"Deutsche Welle":  "https://rss.dw.com/rdf/rss-en-world",
-	"France 24":       "https://www.france24.com/en/rss",
-	"The Independent": "https://www.independent.co.uk/news/world/rss",
-	"Washington Post": "https://feeds.washingtonpost.com/rss/world",
-	"WSJ":             "https://feeds.a.dj.com/rss/RSSWorldNews.xml",
-}
-
 // This function was unused and removed to satisfy linter
 
 // rssFeedChecker checks RSS feeds every 15 minutes and adds new articles to the database
 func rssFeedChecker(shutdown chan struct{}, ollamaURL, ollamaModel string) {
-	fmt.Fprintf(os.Stderr, "[rss] Starting RSS feed checker (interval: %s)\n", RSS_CHECK_INTERVAL)
+	logInfo("rss", "Starting RSS feed checker", map[string]interface{}{
+		"interval": RSS_CHECK_INTERVAL.String(),
+	})
 
 	// Run immediately on startup
 	checkRSSFeeds()
@@ -67,7 +28,7 @@ func rssFeedChecker(shutdown chan struct{}, ollamaURL, ollamaModel string) {
 		case <-ticker.C:
 			checkRSSFeeds()
 		case <-shutdown:
-			fmt.Fprintf(os.Stderr, "[rss] Shutting down RSS feed checker\n")
+			logInfo("rss", "Shutting down RSS feed checker", nil)
 			return
 		}
 	}
@@ -100,8 +61,9 @@ func checkRSSFeeds() {
 				})
 			}
 			newCount++
-			logInfo("new", fmt.Sprintf("Found new article: %s", a.Title), map[string]interface{}{
+			logInfo("new", "Found new article", map[string]interface{}{
 				"id":        a.ID,
+				"title":     a.Title,
 				"source":    a.Source,
 				"published": a.Published.Format(time.RFC3339),
 			})
@@ -160,13 +122,23 @@ func fetchAllFeedsParallel(now time.Time) []Article {
 			logEvent("rss_fetch_result", details)
 
 			if err != nil {
-				fmt.Fprintf(os.Stderr, "[rss] FAIL  %-15s (%s) [%.2fs] ERR: %v\n", source, url, duration.Seconds(), err)
+				logInfo("rss", "Feed fetch failed", map[string]interface{}{
+					"source":   source,
+					"url":      url,
+					"duration": duration.Seconds(),
+					"error":    err.Error(),
+				})
 				results <- fetchResult{Source: source, URL: url, Err: err, Duration: duration, HTTPStatus: httpStatus}
 				return
 			}
 
-			fmt.Fprintf(os.Stderr, "[rss] OK    %-15s (%s) [%.2fs] HTTP %d, items: %d\n",
-				source, url, duration.Seconds(), httpStatus, len(feed.Items))
+			logInfo("rss", "Feed fetch succeeded", map[string]interface{}{
+				"source":   source,
+				"url":      url,
+				"duration": duration.Seconds(),
+				"status":   httpStatus,
+				"items":    len(feed.Items),
+			})
 
 			results <- fetchResult{
 				Source:     source,

storage.go

@@ -1,18 +1,199 @@
 package main
 
 import (
+	"context"
 	"crypto/sha256"
 	"database/sql"
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
+	"io"
+	"log/slog"
 	"os"
 	"sort"
+	"strings"
 	"time"
 
 	"github.com/oklog/ulid/v2"
 )
 
+// ColorizedHandler is a custom slog.Handler that outputs colorized logs
+type ColorizedHandler struct {
+	w       io.Writer
+	level   slog.Level
+	timeKey string
+	msgKey  string
+}
+
+// NewColorizedHandler creates a new ColorizedHandler
+func NewColorizedHandler(w io.Writer, opts *slog.HandlerOptions) *ColorizedHandler {
+	if opts == nil {
+		opts = &slog.HandlerOptions{}
+	}
+	return &ColorizedHandler{
+		w:       w,
+		level:   opts.Level.Level(),
+		timeKey: "time",
+		msgKey:  slog.MessageKey,
+	}
+}
+
+// Enabled implements slog.Handler
+func (h *ColorizedHandler) Enabled(ctx context.Context, level slog.Level) bool {
+	return level >= h.level
+}
+
+// Handle implements slog.Handler
+func (h *ColorizedHandler) Handle(ctx context.Context, r slog.Record) error {
+	// Skip logs below our level
+	if !h.Enabled(ctx, r.Level) {
+		return nil
+	}
+
+	// Format time with milliseconds
+	timeStr := r.Time.Format("15:04:05.000")
+
+	// Get component from attributes
+	var component string
+	var message string
+
+	// Store other attributes for printing later
+	attributes := make(map[string]interface{})
+	r.Attrs(func(a slog.Attr) bool {
+		if a.Key == "component" {
+			component = a.Value.String()
+			return true
+		}
+		if a.Key == h.msgKey {
+			message = a.Value.String()
+			return true
+		}
+		// Skip internal or empty values
+		if a.Key == h.timeKey || a.Key == "level" || a.Value.String() == "" {
+			return true
+		}
+		attributes[a.Key] = a.Value.Any()
+		return true
+	})
+
+	// Format level with color
+	var levelColor string
+	var levelText string
+	switch r.Level {
+	case slog.LevelDebug:
+		levelColor = colorGray
+		levelText = "DBG"
+	case slog.LevelInfo:
+		levelColor = colorGreen
+		levelText = "INF"
+	case slog.LevelWarn:
+		levelColor = colorYellow
+		levelText = "WRN"
+	case slog.LevelError:
+		levelColor = colorRed
+		levelText = "ERR"
+	default:
+		levelColor = colorReset
+		levelText = "???"
+	}
+
+	// Build the log line
+	var sb strings.Builder
+
+	// Timestamp with gray color
+	sb.WriteString(colorGray)
+	sb.WriteString("[")
+	sb.WriteString(timeStr)
+	sb.WriteString("]")
+	sb.WriteString(colorReset)
+	sb.WriteString(" ")
+
+	// Level with appropriate color
+	sb.WriteString(levelColor)
+	sb.WriteString(levelText)
+	sb.WriteString(colorReset)
+	sb.WriteString(" ")
+
+	// Component in blue
+	if component != "" {
+		sb.WriteString(colorBlue)
+		sb.WriteString("[")
+		sb.WriteString(component)
+		sb.WriteString("]")
+		sb.WriteString(colorReset)
+		sb.WriteString(" ")
+	}
+
+	// Message in white+bold
+	if message != "" {
+		sb.WriteString(bold)
+		sb.WriteString(colorWhite)
+		sb.WriteString(message)
+		sb.WriteString(colorReset)
+		sb.WriteString(" ")
+	}
+
+	// Sort keys for consistent output
+	keys := make([]string, 0, len(attributes))
+	for k := range attributes {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+
+	// Add attributes as key=value pairs with colors
+	for _, k := range keys {
+		v := attributes[k]
+		sb.WriteString(colorCyan) // Key in cyan
+		sb.WriteString(k)
+		sb.WriteString(colorReset)
+		sb.WriteString("=")
+
+		// Value color depends on type
+		switch v := v.(type) {
+		case string:
+			sb.WriteString(colorYellow) // Strings in yellow
+			sb.WriteString(v)
+		case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64, float32, float64:
+			sb.WriteString(colorPurple) // Numbers in purple
+			sb.WriteString(fmt.Sprintf("%v", v))
+		case bool:
+			if v {
+				sb.WriteString(colorGreen) // true in green
+			} else {
+				sb.WriteString(colorRed) // false in red
+			}
+			sb.WriteString(fmt.Sprintf("%v", v))
+		case error:
+			sb.WriteString(colorRed) // Errors in red
+			sb.WriteString(v.Error())
+		default:
+			sb.WriteString(colorReset) // Other types with no color
+			sb.WriteString(fmt.Sprintf("%v", v))
+		}
+		sb.WriteString(colorReset)
+		sb.WriteString(" ")
+	}
+
+	sb.WriteString("\n")
+
+	// Write to output
+	_, err := io.WriteString(h.w, sb.String())
+	return err
+}
+
+// WithAttrs implements slog.Handler
+func (h *ColorizedHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
+	// This is a simplified implementation that doesn't actually store the attrs
+	// In a real implementation, you would create a new handler with these attrs
+	return h
+}
+
+// WithGroup implements slog.Handler
+func (h *ColorizedHandler) WithGroup(name string) slog.Handler {
+	// This is a simplified implementation that doesn't handle groups
+	return h
+}
+
 func setupDatabase() error {
 	_, err := db.Exec(`
 	CREATE TABLE IF NOT EXISTS articles (
@@ -217,8 +398,9 @@ func loadArticles() map[string]Article {
 	return articles
 }
 
-// getBroadcastHistory gets the most recent broadcast articles
-func getBroadcastHistory(limit int) ([]Article, error) {
+// getBroadcastArticles is a common function for retrieving broadcast articles
+// with consistent filtering criteria
+func getBroadcastArticles(limit int) ([]Article, error) {
 	rows, err := db.Query(`
 	SELECT link, title, description, published, originalDate, source, firstseen, seen, summary, importance, id, broadcastTime
 	FROM articles
@@ -271,6 +453,11 @@ func getBroadcastHistory(limit int) ([]Article, error) {
 	return articles, nil
 }
 
+// getBroadcastHistory gets the most recent broadcast articles
+func getBroadcastHistory(limit int) ([]Article, error) {
+	return getBroadcastArticles(limit)
+}
+
 // getNextUpArticles gets the top 25 articles eligible for broadcast sorted by importance
 func getNextUpArticles() ([]Article, error) {
 	now := time.Now()
@@ -328,66 +515,32 @@ func getNextUpArticles() ([]Article, error) {
 
 // getRecentBroadcasts retrieves the n most recently broadcast articles
 func getRecentBroadcasts(n int) []Article {
-	rows, err := db.Query(`
-	SELECT link, title, description, published, originalDate, source, firstseen, seen, summary, importance, id, broadcastTime
-	FROM articles
-	WHERE broadcastTime IS NOT NULL AND broadcastTime > 1
-	ORDER BY broadcastTime DESC
-	LIMIT ?
-	`, n)
-
+	articles, err := getBroadcastArticles(n)
 	if err != nil {
 		logInfo("db", "Error retrieving recent broadcasts", map[string]interface{}{
 			"error": err.Error(),
 		})
 		return []Article{}
 	}
-	defer rows.Close()
-
-	var broadcasts []Article
-	for rows.Next() {
-		var a Article
-		var seen sql.NullTime
-		var broadcastTime sql.NullTime
-		var originalDate sql.NullTime
-
-		err := rows.Scan(
-			&a.Link, &a.Title, &a.Description, &a.Published, &originalDate, &a.Source,
-			&a.FirstSeen, &seen, &a.Summary, &a.Importance, &a.ID, &broadcastTime,
-		)
-
-		if err != nil {
-			logInfo("db", "Error scanning broadcast article", map[string]interface{}{
-				"error": err.Error(),
-			})
-			continue
-		}
-
-		if seen.Valid {
-			a.Seen = seen.Time
-		}
-
-		if broadcastTime.Valid {
-			a.BroadcastTime = broadcastTime.Time
-		}
-
-		if originalDate.Valid {
-			a.OriginalDate = originalDate.Time
-		}
-
-		broadcasts = append(broadcasts, a)
-	}
-
-	return broadcasts
+	return articles
 }
 
 func setupLogging() {
 	var err error
 	logFile, err = os.Create(logPath)
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "could not create log file: %v\n", err)
+		slog.Error("Could not create log file", "error", err)
 		os.Exit(1)
 	}
+
+	// Set up structured logger with custom colorized handler for console
+	// and JSON handler for file logging
+	consoleHandler := NewColorizedHandler(os.Stderr, &slog.HandlerOptions{
+		Level: slog.LevelDebug,
+	})
+
+	// Use the custom handler
+	slog.SetDefault(slog.New(consoleHandler))
 }
 
 func flushLog() {
@@ -429,10 +582,16 @@ func logEvent(event string, details map[string]interface{}) {
 	// Add to the permanent log data (for file-based logging)
 	logData = append(logData, entry)
 
+	// Only try to store in database if the database is initialized
+	if db == nil {
+		slog.Debug("Skipping database log storage - database not yet initialized")
+		return
+	}
+
 	// Store log in database
 	logBytes, err := json.Marshal(entry)
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "Error marshaling log entry: %v\n", err)
+		slog.Error("Error marshaling log entry", "error", err)
 		return
 	}
 
@@ -444,7 +603,7 @@ func logEvent(event string, details map[string]interface{}) {
 	_, err = db.Exec("INSERT INTO logs (id, timestamp, log) VALUES (?, ?, ?)",
 		id, timestamp, string(logBytes))
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "Error storing log in database: %v\n", err)
+		slog.Error("Error storing log in database", "error", err)
 	}
 }
 
@@ -490,7 +649,11 @@ func cleanupOldLogs() error {
 
 	rowsDeleted, _ := result.RowsAffected()
 	if rowsDeleted > 0 {
-		fmt.Fprintf(os.Stderr, "[logs] Deleted %d log entries older than one month\n", rowsDeleted)
+		logInfo("logs", "Deleted old log entries", map[string]interface{}{
+			"count":      rowsDeleted,
+			"olderThan":  "1 month",
+			"cutoffDate": cutoff.Format(time.RFC3339),
+		})
 	}
 
 	return nil
@@ -530,7 +693,7 @@ func logCleanupWorker(shutdown chan struct{}) {
 }
 
 // logInfo logs a structured message to both console and log file
-func logInfo(component, message string, data map[string]interface{}) {
+func logInfo(component string, message string, data map[string]interface{}) {
 	// Create a copy of the data map to avoid modifying the original
 	logData := make(map[string]interface{})
 	for k, v := range data {
@@ -541,25 +704,49 @@ func logInfo(component, message string, data map[string]interface{}) {
 	logData["component"] = component
 	logData["message"] = message
 
-	// Format console output: timestamp component: message key1=val1 key2=val2
-	timestamp := time.Now().Format("15:04:05.000")
-	console := fmt.Sprintf("[%s] [%s] %s", timestamp, component, message)
-
-	// Add key-value pairs to console output
-	keys := make([]string, 0, len(data))
-	for k := range data {
-		keys = append(keys, k)
+	// Use slog for structured logging to console
+	attrs := []any{}
+	for k, v := range logData {
+		attrs = append(attrs, k, v)
 	}
-	sort.Strings(keys) // Sort keys for consistent output
+	slog.Info(message, attrs...)
 
-	for _, k := range keys {
-		v := data[k]
-		console += fmt.Sprintf(" %s=%v", k, v)
-	}
-
-	// Print to console
-	fmt.Fprintln(os.Stderr, console)
-
-	// Log to structured log file
+	// Log to structured log file and database
 	logEvent("info", logData)
 }
+
+// getLastBroadcastTime retrieves the most recent broadcast time from the database
+func getLastBroadcastTime() time.Time {
+	var lastBroadcastTime time.Time
+
+	// Query for the most recent valid broadcast time
+	row := db.QueryRow(`
+	SELECT MAX(broadcastTime) FROM articles
+	WHERE broadcastTime IS NOT NULL 
+	  AND broadcastTime > 1 
+	  AND broadcastTime != 0
+	  AND datetime(broadcastTime) != '1970-01-01 00:00:00'
+	  AND datetime(broadcastTime) != '0001-01-01 00:00:00'
+	  AND strftime('%Y', broadcastTime) > '2000' -- Ensure year is at least 2000
+	`)
+
+	// Scan the result
+	var lastTime sql.NullTime
+	if err := row.Scan(&lastTime); err != nil {
+		logInfo("db", "Error retrieving last broadcast time", map[string]interface{}{
+			"error": err.Error(),
+		})
+		return time.Time{} // Return zero time on error
+	}
+
+	if lastTime.Valid {
+		lastBroadcastTime = lastTime.Time
+		logInfo("db", "Retrieved last broadcast time", map[string]interface{}{
+			"lastBroadcastTime": lastBroadcastTime.Format(time.RFC3339),
+		})
+	} else {
+		logInfo("db", "No previous broadcasts found in database", nil)
+	}
+
+	return lastBroadcastTime
+}

templates/index.html

@@ -85,8 +85,13 @@
         .timestamp {
             font-size: 0.9em;
             color: #7f8c8d;
-            min-width: 180px;
+            min-width: 120px;
             font-family: monospace;
+            white-space: nowrap;
+        }
+        .timestamp[title] {
+            text-decoration: none;
+            border-bottom: 1px dotted #7f8c8d;
         }
         .source {
             font-weight: bold;
@@ -155,6 +160,23 @@
             margin: 0 2px;
             font-family: monospace;
         }
+        .footer {
+            background-color: #e0e0e0;
+            padding: 15px;
+            text-align: center;
+            font-size: 12px;
+            color: #777;
+            margin-top: 40px;
+            border-radius: 5px;
+            box-shadow: 0 -2px 5px rgba(0,0,0,0.1);
+        }
+        .footer a {
+            color: #555;
+            text-decoration: none;
+        }
+        .footer a:hover {
+            text-decoration: underline;
+        }
     </style>
 </head>
 <body>
@@ -186,6 +208,10 @@
                 <div class="stat-label">Awaiting Summary</div>
                 <div class="stat-number">{{.UnsummarizedCount}}</div>
             </div>
+            <div class="stat-box">
+                <div class="stat-label">Next Broadcast In</div>
+                <div class="stat-number">{{.NextBroadcastIn}}</div>
+            </div>
         </div>
         
         <div class="section">
@@ -209,7 +235,7 @@
                         <td class="source">{{.Source}}</td>
                         <td class="title">{{.Title}}</td>
                         <td><a href="{{.Link}}" class="article-link" target="_blank">{{.Summary}}</a></td>
-                        <td class="timestamp">{{.FirstSeen.Format "2006-01-02 15:04:05 MST"}}</td>
+                        <td class="timestamp" title="{{.FirstSeen.Format "2006-01-02 15:04:05 MST"}}">{{.RelativeTime}}</td>
                     </tr>
                     {{else}}
                     <tr>
@@ -237,7 +263,7 @@
                     {{range .History}}
                     <tr>
                         <td class="id">{{.ID}}</td>
-                        <td class="timestamp">{{.BroadcastTime.Format "2006-01-02 15:04:05 MST"}}</td>
+                        <td class="timestamp" title="{{.BroadcastTime.Format "2006-01-02 15:04:05 MST"}}">{{.BroadcastRelativeTime}}</td>
                         <td class="importance {{if ge .Importance 70}}high{{else if ge .Importance 40}}medium{{else}}low{{end}}">{{.Importance}}</td>
                         <td class="source">{{.Source}}</td>
                         <td class="title">{{.Title}}</td>
@@ -265,7 +291,7 @@
                 <tbody>
                     {{range .RecentLogs}}
                     <tr>
-                        <td class="timestamp">{{.Timestamp.Format "2006-01-02 15:04:05 MST"}}</td>
+                        <td class="timestamp" style="white-space: nowrap;">{{.Timestamp.Format "2006-01-02 15:04:05 MST"}}</td>
                         <td class="log-event">{{.Event}}</td>
                         <td class="log-details">
                             {{range $key, $value := .Details}}
@@ -286,5 +312,9 @@
             </table>
         </div>
     </div>
+
+    <div class="footer">
+        <a href="https://git.eeqj.de/sneak/gomeshalerter">gomeshalerter</a> is a project by <a href="https://sneak.berlin">@sneak</a> and released under the WTFPL (<a href="https://git.eeqj.de/sneak/gomeshalerter">source</a>)
+    </div>
 </body>
 </html> 

webserver.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"context"
+	"fmt"
 	"html/template"
 	"net/http"
 	"strings"
@@ -19,8 +20,30 @@ func webServer(shutdown chan struct{}) {
 		return
 	}
 
-	// Define HTTP handlers
-	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+	// Create a custom request handler with security headers
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// Add security headers
+		w.Header().Set("X-Content-Type-Options", "nosniff")
+		w.Header().Set("X-Frame-Options", "DENY")
+		w.Header().Set("Content-Security-Policy", "default-src 'self'; style-src 'self' 'unsafe-inline'")
+		w.Header().Set("Referrer-Policy", "strict-origin-when-cross-origin")
+		w.Header().Set("Strict-Transport-Security", "max-age=31536000; includeSubDomains")
+
+		// Enforce request method
+		if r.Method != http.MethodGet {
+			http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+
+		// Limit request body size (1MB)
+		r.Body = http.MaxBytesReader(w, r.Body, 1<<20)
+
+		// Only serve the index page
+		if r.URL.Path != "/" {
+			http.NotFound(w, r)
+			return
+		}
+
 		data, err := getDashboardData()
 		if err != nil {
 			http.Error(w, "Error fetching data: "+err.Error(), http.StatusInternalServerError)
@@ -42,10 +65,14 @@ func webServer(shutdown chan struct{}) {
 		}
 	})
 
-	// Start the server
+	// Configure server with appropriate timeouts
 	server := &http.Server{
-		Addr:    ":8080",
-		Handler: nil, // Use default mux
+		Addr:           ":8080",
+		Handler:        handler,
+		ReadTimeout:    10 * time.Second, // Time to read the request
+		WriteTimeout:   30 * time.Second, // Time to write the response
+		IdleTimeout:    60 * time.Second, // Keep-alive connections timeout
+		MaxHeaderBytes: 1 << 20,          // 1MB max header size
 	}
 
 	// Create a goroutine for the server
@@ -91,9 +118,15 @@ func getDashboardData() (DashboardData, error) {
 	}
 
 	// Count broadcast articles, recent articles, and unsummarized articles
+	var lastBroadcastTime time.Time
 	for _, a := range articles {
 		if !a.BroadcastTime.IsZero() && a.BroadcastTime.Unix() > 1 {
 			data.TotalBroadcast++
+
+			// Track the most recent broadcast time
+			if a.BroadcastTime.After(lastBroadcastTime) {
+				lastBroadcastTime = a.BroadcastTime
+			}
 		}
 
 		if a.FirstSeen.After(hourAgo) {
@@ -105,11 +138,46 @@ func getDashboardData() (DashboardData, error) {
 		}
 	}
 
+	// Set the last broadcast time
+	data.LastBroadcastTime = lastBroadcastTime
+
+	// Calculate time until next broadcast
+	if lastBroadcastTime.IsZero() {
+		data.NextBroadcastIn = "As soon as articles are summarized"
+	} else {
+		nextBroadcastTime := lastBroadcastTime.Add(BROADCAST_INTERVAL)
+		if now.After(nextBroadcastTime) {
+			// If we're past the interval but haven't broadcast yet,
+			// likely waiting for articles to be summarized
+			if data.UnsummarizedCount > 0 {
+				data.NextBroadcastIn = "Waiting for articles to be summarized"
+			} else {
+				data.NextBroadcastIn = "Pending (checking every " + BROADCAST_CHECK_INTERVAL.String() + ")"
+			}
+		} else {
+			// We're still within the interval, calculate remaining time
+			timeUntilNextBroadcast := nextBroadcastTime.Sub(now)
+
+			// Format as hours and minutes
+			hours := int(timeUntilNextBroadcast.Hours())
+			minutes := int(timeUntilNextBroadcast.Minutes()) % 60
+
+			if hours > 0 {
+				data.NextBroadcastIn = fmt.Sprintf("%dh %dm", hours, minutes)
+			} else {
+				data.NextBroadcastIn = fmt.Sprintf("%dm", minutes)
+			}
+		}
+	}
+
 	// Get broadcast history (last 100)
 	history, err := getBroadcastHistory(100)
 	if err != nil {
 		return data, err
 	}
+
+	// Add relative time information to history articles
+	history = addRelativeTimes(history)
 	data.History = history
 
 	// Get next up articles (importance sorted, less than 24 hours old)
@@ -117,6 +185,9 @@ func getDashboardData() (DashboardData, error) {
 	if err != nil {
 		return data, err
 	}
+
+	// Add relative time information to next up articles
+	nextUp = addRelativeTimes(nextUp)
 	data.NextUp = nextUp
 
 	// Get recent logs
@@ -141,3 +212,49 @@ func isResponseHeaderWritten(err error) bool {
 		strings.Contains(errStr, "write: connection reset by peer") ||
 		strings.Contains(errStr, "http: superfluous response.WriteHeader")
 }
+
+// formatRelativeTime returns a human-readable relative time string
+func formatRelativeTime(t time.Time) string {
+	if t.IsZero() {
+		return ""
+	}
+
+	now := time.Now()
+	diff := now.Sub(t)
+
+	// Less than a minute
+	if diff < time.Minute {
+		return "just now"
+	}
+
+	// Less than an hour
+	if diff < time.Hour {
+		minutes := int(diff.Minutes())
+		return fmt.Sprintf("%dm ago", minutes)
+	}
+
+	// Less than a day
+	if diff < 24*time.Hour {
+		hours := int(diff.Hours())
+		return fmt.Sprintf("%dh ago", hours)
+	}
+
+	// Less than a week
+	if diff < 7*24*time.Hour {
+		days := int(diff.Hours() / 24)
+		return fmt.Sprintf("%dd ago", days)
+	}
+
+	// More than a week
+	weeks := int(diff.Hours() / 24 / 7)
+	return fmt.Sprintf("%dw ago", weeks)
+}
+
+// Add relative time information to articles
+func addRelativeTimes(articles []Article) []Article {
+	for i := range articles {
+		articles[i].RelativeTime = formatRelativeTime(articles[i].FirstSeen)
+		articles[i].BroadcastRelativeTime = formatRelativeTime(articles[i].BroadcastTime)
+	}
+	return articles
+}