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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| #!/bin/bash | ||
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| # Monitor Script for /var/log/liquidsoap/radio.log | ||
| # Displays current on air source and status of studio_a and studio_b. | ||
| # Status includes whether connected with audio playing or silent. | ||
| # Refreshes every second without leaving residual characters on the screen. | ||
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| # Path to the log file | ||
| LOG_FILE="/var/log/liquidsoap/radio.log" | ||
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| # Check if the log file exists and is readable | ||
| if [[ ! -f "$LOG_FILE" ]]; then | ||
| echo "Error: Log file '$LOG_FILE' does not exist." | ||
| exit 1 | ||
| fi | ||
|
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||
| if [[ ! -r "$LOG_FILE" ]]; then | ||
| echo "Error: Log file '$LOG_FILE' is not readable." | ||
| exit 1 | ||
| fi | ||
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| # Function to extract the current on air source | ||
| get_current_on_air() { | ||
| # Extract the last radio_prod switch event | ||
| # Example lines: | ||
| # 2024/09/14 19:27:21 [radio_prod:3] Switch to noodband. | ||
| # 2024/09/14 19:27:46 [radio_prod:3] Switch to buffered_studio_a with transition. | ||
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| # Declare the variable | ||
| local on_air | ||
| # Assign the value | ||
| on_air=$(grep 'radio_prod:3] Switch to' "$LOG_FILE" | tail -1 | \ | ||
| awk -F 'Switch to ' '{print $2}' | \ | ||
| sed -e 's/ with.*//' -e 's/\.$//') | ||
| echo "${on_air:-Unknown}" | ||
| } | ||
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| # Function to extract and map the latest status of a studio | ||
| get_studio_status() { | ||
| local studio="$1" | ||
| # Possible statuses: connected, disconnected, silence detected, audio resumed | ||
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| # Declare the variable | ||
| local last_event | ||
| # Assign the value | ||
| last_event=$(grep "lang:3] ${studio}" "$LOG_FILE" | \ | ||
| grep -E 'connected|disconnected|silence detected|audio resumed' | \ | ||
| tail -1 | \ | ||
| awk -F "lang:3] ${studio} " '{print $2}') | ||
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| # Map the last event to the desired status | ||
| case "$last_event" in | ||
| "connected") | ||
| echo "Connected (audio playing)" | ||
| ;; | ||
| "silence detected") | ||
| echo "Connected (silent)" | ||
| ;; | ||
| "audio resumed") | ||
| echo "Connected (audio playing)" | ||
| ;; | ||
| "disconnected") | ||
| echo "Disconnected" | ||
| ;; | ||
| *) | ||
| echo "Unknown" | ||
| ;; | ||
| esac | ||
| } | ||
|
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| # Color codes for enhanced readability | ||
| RED='\033[0;31m' | ||
| GREEN='\033[0;32m' | ||
| YELLOW='\033[1;33m' | ||
| NC='\033[0m' # No Color | ||
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| # Clear the screen once at the start | ||
| clear | ||
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| # Infinite loop to refresh every second | ||
| while true; do | ||
| # Fetch current on air source | ||
| CURRENT_ON_AIR=$(get_current_on_air) | ||
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| # Fetch studio statuses | ||
| STUDIO_A_STATUS=$(get_studio_status "studio_a") | ||
| STUDIO_B_STATUS=$(get_studio_status "studio_b") | ||
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| # Color-coding for studio_a | ||
| case "$STUDIO_A_STATUS" in | ||
| "Connected (audio playing)") | ||
| STUDIO_A_DISPLAY="${GREEN}$STUDIO_A_STATUS${NC}" | ||
| ;; | ||
| "Connected (silent)") | ||
| STUDIO_A_DISPLAY="${YELLOW}$STUDIO_A_STATUS${NC}" | ||
| ;; | ||
| "Disconnected") | ||
| STUDIO_A_DISPLAY="${RED}$STUDIO_A_STATUS${NC}" | ||
| ;; | ||
| *) | ||
| STUDIO_A_DISPLAY="$STUDIO_A_STATUS" | ||
| ;; | ||
| esac | ||
|
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| # Color-coding for studio_b | ||
| case "$STUDIO_B_STATUS" in | ||
| "Connected (audio playing)") | ||
| STUDIO_B_DISPLAY="${GREEN}$STUDIO_B_STATUS${NC}" | ||
| ;; | ||
| "Connected (silent)") | ||
| STUDIO_B_DISPLAY="${YELLOW}$STUDIO_B_STATUS${NC}" | ||
| ;; | ||
| "Disconnected") | ||
| STUDIO_B_DISPLAY="${RED}$STUDIO_B_STATUS${NC}" | ||
| ;; | ||
| *) | ||
| STUDIO_B_DISPLAY="$STUDIO_B_STATUS" | ||
| ;; | ||
| esac | ||
|
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| # Clear the screen before displaying new information | ||
| clear | ||
|
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| # Display the information | ||
| echo "==================== Radio Station Status ====================" | ||
| echo "Timestamp: $(date '+%Y/%m/%d %H:%M:%S')" | ||
| echo "" | ||
| echo "Current On Air: $CURRENT_ON_AIR" | ||
| echo "" | ||
| echo "Studio Statuses:" | ||
| echo -e " studio_a: $STUDIO_A_DISPLAY" | ||
| echo -e " studio_b: $STUDIO_B_DISPLAY" | ||
| echo "===============================================================" | ||
|
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| # Optional: Log the status to a file | ||
| # LOG_OUTPUT="/var/log/liquidsoap/status_monitor.log" | ||
| # echo "$(date '+%Y/%m/%d %H:%M:%S') - On Air: $CURRENT_ON_AIR | studio_a: $STUDIO_A_STATUS | studio_b: $STUDIO_B_STATUS" >> "$LOG_OUTPUT" | ||
|
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| # Wait for 1 second before refreshing | ||
| sleep 1 | ||
| done |
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