#!/bin/zsh

cd ${0:a:h}

# iOS Social App Patch Setup Script
# Usage: ./ios/setup.zsh [patch|reset]

# Arrays for patch management
typeset -a FAILED_PATCHES

# Patch file lists for iOS
typeset -a PATCH_FILES_IOS
PATCH_FILES_IOS=(
	"001-social-app-ios-config.patch"
	"002-social-app-ios-lib.patch"
	"003-social-app-ios-view.patch"
	"004-social-app-ios-core.patch"
	"005-social-app-ios-screens.patch"
	"006-social-app-ios-shell.patch"
	"007-social-app-ios-misc.patch"
	"008-social-app-ios-policy-tos-error.patch"
	"009-social-app-ios-license.patch"
	"010-social-app-ios-remove-contact-support.patch"
	"011-social-app-ios-splash-license-footer.patch"
	"012-social-app-ios-settings-about-help.patch"
	"013-social-app-ios-settings-remove-help.patch"
	"019-social-app-ios-entitlements-plugin.patch"
	"020-social-app-ios-bypass-age-assurance.patch"
	"021-social-app-ios-clean-feed.patch"
)

function ios-env() {
	d=${0:a:h:h}
	patching_dir=${0:a:h}/patching
	target_dir=$d/repos/social-app
}

# Common patch function with status detection
function apply-patch() {
	local patch_name=$1
	local target_dir=$2
	local patch_file=$3

	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
	echo "📝 Patch: ${patch_name}"
	echo "   Target: ${target_dir}"
	echo "   File: ${patch_file}"

	pushd ${target_dir} > /dev/null

	# Check if patch is already applied (reverse dry-run succeeds)
	if patch -f --dry-run -p1 -R < ${patch_file} > /dev/null 2>&1; then
		echo "✅ Already applied - skipping"
		popd > /dev/null
		echo ""
		return 0
	fi

	# Check if patch can be applied (forward dry-run succeeds)
	if patch --dry-run -p1 < ${patch_file} > /dev/null 2>&1; then
		echo "🔧 Applying patch..."
		if patch -p1 < ${patch_file}; then
			echo "✅ Applied successfully"
			popd > /dev/null
			echo ""
			return 0
		else
			echo "❌ Failed to apply"
			FAILED_PATCHES+=("${patch_name} (${patch_file})")
			popd > /dev/null
			echo ""
			return 1
		fi
	else
		echo "⚠️  Cannot apply - file may have been modified"
		echo "   Please check manually"
		FAILED_PATCHES+=("${patch_name} (${patch_file}) - file modified")
		popd > /dev/null
		echo ""
		return 1
	fi
}

function show-failed-patches() {
	if [ ${#FAILED_PATCHES[@]} -eq 0 ]; then
		echo ""
		echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
		echo "✅ All patches applied successfully!"
		echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
		echo ""
		return 0
	fi

	echo ""
	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
	echo "⚠️  FAILED PATCHES SUMMARY"
	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
	echo ""
	echo "The following patches could not be applied:"
	echo ""
	for failed_patch in "${FAILED_PATCHES[@]}"; do
		echo "  ❌ ${failed_patch}"
	done
	echo ""
	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
	echo ""
}

# Helper function for applying patches
function patch-apply() {
	local name=$1
	local patch_file=$2
	apply-patch "${name}" "$target_dir" "$patching_dir/${patch_file}"
}

# Auto-apply patches from list
function ios-patch-apply-all() {
	for filename in "${PATCH_FILES_IOS[@]}"; do
		local title="${filename%.*}"
		patch-apply "$title" "$filename"
	done
}

# Copy new files that aren't in patches
function ios-copy-new-files() {
	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
	echo "📁 Copying new files..."

	# Copy all assets from ios/assets/ to repos/social-app/assets/
	if [ -d "$d/ios/assets" ]; then
		cp -rf "$d/ios/assets/"* "$target_dir/assets/"
		echo "✅ Copied all assets (including logo.png, app-icons)"
	fi

	# Copy License.tsx
	if [ -f "$patching_dir/License.tsx" ]; then
		mkdir -p "$target_dir/src/view/screens"
		cp "$patching_dir/License.tsx" "$target_dir/src/view/screens/License.tsx"
		echo "✅ Copied License.tsx"
	fi

	echo ""
}

function ios-setup-clone() {
	if [ ! -d $target_dir ]; then
		echo "Error: social-app repository not found at $target_dir"
		echo "Please run install.zsh first to clone repositories"
		return 1
	fi
	echo "Repository found: $target_dir"
}

function ios-setup-reset() {
	echo "Resetting social-app repository..."
	cd $target_dir
	git stash
	git checkout .
	echo "Reset complete"
}

# Main execution
ios-env

case "$1" in
	patch)
		ios-setup-clone
		ios-patch-apply-all
		ios-copy-new-files
		show-failed-patches
		exit
		;;
	reset)
		ios-setup-reset
		exit
		;;
	*)
		ios-setup-clone
		ios-patch-apply-all
		ios-copy-new-files
		show-failed-patches
		;;
esac