#!/bin/bash

# TimeSafari Android Icon Generation Script (Placeholder Icons)
# Generates placeholder Android launcher icons with "TS" text
# Author: Matthew Raymer

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
ANDROID_RES_DIR="$PROJECT_ROOT/android/app/src/main/res"

echo "=== TimeSafari Android Placeholder Icon Generation ==="
echo "[$(date '+%Y-%m-%d %H:%M:%S')] [INFO] Starting Android placeholder icon generation"

# Check if ImageMagick is available and determine the correct command
IMAGEMAGICK_CMD=""
if command -v magick &> /dev/null; then
    IMAGEMAGICK_CMD="magick"
    echo "[INFO] Using ImageMagick v7+ (magick command)"
elif command -v convert &> /dev/null; then
    IMAGEMAGICK_CMD="convert"
    echo "[INFO] Using ImageMagick v6 (convert command)"
else
    echo "[ERROR] ImageMagick not found. Please install ImageMagick."
    echo "  Arch: sudo pacman -S imagemagick"
    echo "  Ubuntu: sudo apt-get install imagemagick"
    echo "  macOS: brew install imagemagick"
    exit 1
fi

# Create directories if they don't exist
mkdir -p "$ANDROID_RES_DIR/mipmap-mdpi"
mkdir -p "$ANDROID_RES_DIR/mipmap-hdpi"
mkdir -p "$ANDROID_RES_DIR/mipmap-xhdpi"
mkdir -p "$ANDROID_RES_DIR/mipmap-xxhdpi"
mkdir -p "$ANDROID_RES_DIR/mipmap-xxxhdpi"

# Function to generate placeholder icon using the appropriate ImageMagick command
generate_placeholder_icon() {
    local size="$1"
    local output="$2"
    local pointsize="$3"
    
    if [ "$IMAGEMAGICK_CMD" = "magick" ]; then
        # ImageMagick v7+ syntax
        magick -size "${size}x${size}" xc:blue -gravity center -pointsize "$pointsize" -fill white -annotate 0 "TS" "$output"
    else
        # ImageMagick v6 syntax
        convert -size "${size}x${size}" xc:blue -gravity center -pointsize "$pointsize" -fill white -annotate 0 "TS" "$output"
    fi
}

echo "[INFO] Generating placeholder launcher icons..."

# Generate placeholder icons using ImageMagick
generate_placeholder_icon 48 "$ANDROID_RES_DIR/mipmap-mdpi/ic_launcher.png" 20
generate_placeholder_icon 72 "$ANDROID_RES_DIR/mipmap-hdpi/ic_launcher.png" 30
generate_placeholder_icon 96 "$ANDROID_RES_DIR/mipmap-xhdpi/ic_launcher.png" 40
generate_placeholder_icon 144 "$ANDROID_RES_DIR/mipmap-xxhdpi/ic_launcher.png" 60
generate_placeholder_icon 192 "$ANDROID_RES_DIR/mipmap-xxxhdpi/ic_launcher.png" 80

echo "[INFO] Copying to round versions..."

# Copy to round versions
cp "$ANDROID_RES_DIR/mipmap-mdpi/ic_launcher.png" "$ANDROID_RES_DIR/mipmap-mdpi/ic_launcher_round.png"
cp "$ANDROID_RES_DIR/mipmap-hdpi/ic_launcher.png" "$ANDROID_RES_DIR/mipmap-hdpi/ic_launcher_round.png"
cp "$ANDROID_RES_DIR/mipmap-xhdpi/ic_launcher.png" "$ANDROID_RES_DIR/mipmap-xhdpi/ic_launcher_round.png"
cp "$ANDROID_RES_DIR/mipmap-xxhdpi/ic_launcher.png" "$ANDROID_RES_DIR/mipmap-xxhdpi/ic_launcher_round.png"
cp "$ANDROID_RES_DIR/mipmap-xxxhdpi/ic_launcher.png" "$ANDROID_RES_DIR/mipmap-xxxhdpi/ic_launcher_round.png"

echo "[SUCCESS] Generated Android placeholder launcher icons:"
echo "  - mipmap-mdpi/ic_launcher.png (48x48)"
echo "  - mipmap-hdpi/ic_launcher.png (72x72)"
echo "  - mipmap-xhdpi/ic_launcher.png (96x96)"
echo "  - mipmap-xxhdpi/ic_launcher.png (144x144)"
echo "  - mipmap-xxxhdpi/ic_launcher.png (192x192)"
echo "  - All round versions created"
echo "[SUCCESS] Android placeholder icon generation completed successfully!"