Add n8n workflows 01-08 (with upgrades), 14-16; planning docs; .gitignore

n8n-workflows/class-watcher.sh

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+#!/bin/bash
+# class-watcher.sh — Watches /mnt/data/class-recordings for new .wav files
+# and POSTs them to the n8n class/upload webhook.
+# Saves the transcript + notes response as a .md file alongside the recording.
+#
+# Install:
+#   1. Copy to PD: scp class-watcher.sh truenas_admin@10.5.1.6:/tmp/class-watcher.sh
+#   2. sudo mv /tmp/class-watcher.sh /mnt/data/class-watcher.sh
+#   3. sudo chmod +x /mnt/data/class-watcher.sh
+#   4. sudo crontab -e
+#      * * * * * /mnt/data/class-watcher.sh >> /var/log/class-watcher.log 2>&1
+#
+# Folder structure after processing:
+#   /mnt/data/class-recordings/
+#   └── CS101-Java/
+#       ├── new-lecture.wav              ← waiting to be processed
+#       └── done/
+#           ├── lecture-01-intro.wav     ← already processed
+#           └── lecture-01-intro.md      ← transcript + notes
+
+WATCH_DIR="/mnt/data/class-recordings"
+WEBHOOK_URL="http://10.5.1.6:5678/webhook/class/upload"
+
+# Find all .wav files directly inside class subfolders (not in done/)
+find "$WATCH_DIR" -mindepth 2 -maxdepth 2 -name '*.wav' -type f | while read -r filepath; do
+    # Skip files in 'done' directories
+    if echo "$filepath" | grep -q '/done/'; then
+        continue
+    fi
+
+    # Extract class name from parent folder
+    class_dir=$(dirname "$filepath")
+    class_name=$(basename "$class_dir")
+    file_name=$(basename "$filepath")
+    lecture_title="${file_name%.wav}"
+
+    echo "[$(date)] Processing: $filepath (class: $class_name)"
+
+    # Create done folder
+    mkdir -p "$class_dir/done"
+
+    # POST the file to n8n webhook and capture the response
+    response=$(curl -s -X POST "$WEBHOOK_URL" \
+        -H "X-Class-Name: $class_name" \
+        -H "X-Lecture-Title: $lecture_title" \
+        -F "data=@$filepath" \
+        -F "class_name=$class_name" \
+        -F "lecture_title=$lecture_title" \
+        -F "filename=$file_name" \
+        -w "\n%{http_code}" 2>/dev/null)
+
+    http_code=$(echo "$response" | tail -1)
+    body=$(echo "$response" | sed '$d')
+
+    echo "[$(date)] HTTP $http_code"
+
+    # Save the transcript + notes as markdown
+    md_file="$class_dir/done/${lecture_title}.md"
+
+    # Try to parse JSON response and format as markdown
+    if command -v python3 &>/dev/null; then
+        echo "$body" | python3 -c "
+import json, sys
+try:
+    data = json.load(sys.stdin)
+    # Handle array response from n8n
+    if isinstance(data, list):
+        data = data[0] if data else {}
+    cn = data.get('className', '$class_name')
+    lt = data.get('lectureTitle', '$lecture_title')
+    dm = data.get('durationMinutes', '?')
+    notes = data.get('notes', {})
+    summary = notes.get('summary', 'No summary available')
+    concepts = notes.get('key_concepts', [])
+    defs = notes.get('definitions', [])
+    assignments = notes.get('assignments', [])
+    transcript = data.get('timestampedText', data.get('fullText', 'No transcript'))
+
+    print(f'# {cn} — {lt}')
+    print(f'**Duration:** {dm} minutes')
+    print()
+    print('## Summary')
+    print(summary)
+    print()
+    if concepts:
+        print('## Key Concepts')
+        for c in concepts:
+            print(f'- {c}')
+        print()
+    if defs:
+        print('## Definitions')
+        for d in defs:
+            if isinstance(d, dict):
+                print(f'- **{d.get(\"term\", \"\")}**: {d.get(\"definition\", \"\")}')
+            else:
+                print(f'- {d}')
+        print()
+    if assignments:
+        print('## Assignments')
+        for a in assignments:
+            print(f'- {a}')
+        print()
+    print('## Full Transcript')
+    print(transcript)
+except Exception as e:
+    print(f'# {\"$class_name\"} — {\"$lecture_title\"}')
+    print()
+    print('## Raw Response')
+    print(sys.stdin.read() if not data else json.dumps(data, indent=2))
+" > "$md_file" 2>/dev/null
+    else
+        # Fallback: save raw JSON
+        echo "$body" > "$md_file"
+    fi
+
+    echo "[$(date)] Saved notes to: $md_file"
+
+    # Move wav to done folder
+    mv "$filepath" "$class_dir/done/$file_name"
+    echo "[$(date)] Moved to: $class_dir/done/$file_name"
+done