#!/bin/bash
# generate_report.sh — Full pipeline for generating meeting report (without diagrams)
# Usage: ./generate_report.sh /absolute/path/to/meeting_folder
# Example: ./generate_report.sh /app/hermes_data/meetings/2026-04-15

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"

# Load .env if exists (for hotwords etc.)
if [ -f "$SCRIPT_DIR/.env" ]; then
    set -a
    source "$SCRIPT_DIR/.env"
    set +a
fi

if [ $# -lt 1 ]; then
    echo "Usage: $0 <absolute_path_to_meeting_folder>"
    echo "Example: $0 /app/hermes_data/meetings/2026-04-15"
    exit 1
fi

MEETING_DIR="$1"

# If relative path provided, convert to absolute
if [[ "$MEETING_DIR" != /* ]]; then
    MEETING_DIR="$SCRIPT_DIR/$MEETING_DIR"
fi

# Resolve absolute path
MEETING_DIR="$(realpath "$MEETING_DIR")"

if [ ! -d "$MEETING_DIR" ]; then
    echo "Error: Meeting directory not found: $MEETING_DIR"
    exit 1
fi

# ============================================================
# Step 1: Transcription (skip if already done)
# ============================================================
if [ -d "$MEETING_DIR/transcription" ] && [ -f "$MEETING_DIR/transcription/plain_text.txt" ]; then
    echo "[1/2] Transcription already exists, skipping."
else
    echo "[1/2] Running transcription..."
    bash "$SCRIPT_DIR/transcribe.sh" "$MEETING_DIR"
fi

# ============================================================
# Step 2: Generate PDF from markdown
# ============================================================
echo "[2/2] Generating PDF..."
REPORT_MD="$MEETING_DIR/report.md"
REPORT_PDF="$MEETING_DIR/report.pdf"

if [ ! -f "$REPORT_MD" ]; then
    echo "  Error: report.md not found at $REPORT_MD"
    exit 1
fi

cd "$MEETING_DIR"
pandoc report.md -o report.pdf \
    --pdf-engine=xelatex \
    -V mainfont="DejaVu Serif" \
    -V sansfont="DejaVu Sans" \
    -V monofont="DejaVu Sans Mono" \
    -V geometry:margin=2cm \
    -V fontsize=11pt \
    -V lang=ru \
    --highlight-style=tango

PDF_SIZE=$(du -h "$REPORT_PDF" | cut -f1)
echo ""
echo "Done! Report: $REPORT_PDF ($PDF_SIZE)"