#!/bin/bash
set -e

# 📦 Install required tools (in pipeline step)
apk add --no-cache git bash curl yq jq

echo "🔍 Scanning for apps with cname.yaml..."

mkdir -p generated-values
rm -rf .tmp-repos
mkdir -p .tmp-repos

# === REPO CONFIG ===
SANDBOX_REPO_URL="https://git.dvirlabs.com/dvirlabs/sandbox.git"
INFRA_REPO_URL="https://${GIT_TOKEN}@git.dvirlabs.com/dvirlabs/infra.git"
SANDBOX_CLONE=".tmp-repos/sandbox"
INFRA_CLONE=".tmp-repos/infra"
GENERATED_FILE="generated-values/cloudflared-values.yaml"
ORIGINAL_FILE="$INFRA_CLONE/manifests/cloudflared/values.yaml"
MERGED_FILE="$INFRA_CLONE/manifests/cloudflared/values.yaml"

# === STEP 1: Clone Repos ===
echo "📦 Cloning sandbox..."
git clone --depth=1 "$SANDBOX_REPO_URL" "$SANDBOX_CLONE"

echo "📦 Cloning infra..."
git clone --depth=1 "$INFRA_REPO_URL" "$INFRA_CLONE"

ls -l .tmp-repos/

# === STEP 2: Generate ingress list from sandbox ===
echo "⚙️  Generating sandbox ingress list..."
cat <<EOF > "$GENERATED_FILE"
ingress: []
EOF

find "$SANDBOX_CLONE/manifests" -name cname.yaml | while read -r cname_file; do
  app_name=$(basename "$(dirname "$cname_file")")
  enabled=$(yq '.enabled' "$cname_file")

  if [[ "$enabled" == "true" ]]; then
    hostname=$(yq '.hostname' "$cname_file")
    service="http://${app_name}.sandbox.svc.cluster.local:80"
    echo "✅ Found $hostname → $service"
    yq eval ".ingress += [{\"hostname\": \"$hostname\", \"service\": \"$service\"}]" -i "$GENERATED_FILE"
  fi
done

echo "📄 Generated Ingress:"
cat "$GENERATED_FILE"

# === STEP 3: Merge into cloudflared values.yaml ===
echo "🔁 Merging new entries into: $ORIGINAL_FILE"

yq eval-all '
  select(fileIndex == 0) as $base |
  select(fileIndex == 1) as $new |
  $base * {
    cloudflare: $base.cloudflare * {
      ingress: (
        ($base.cloudflare.ingress + $new.ingress)
        | unique_by(.hostname)
      )
    }
  }
' "$ORIGINAL_FILE" "$GENERATED_FILE" > "$MERGED_FILE"

echo "✅ Final merged values.yaml:"
cat "$MERGED_FILE"

# === STEP 4: Git push ===
echo "📤 Pushing updated values.yaml to infra repo..."

cd "$INFRA_CLONE"
git config user.name "woodpecker-bot"
git config user.email "ci@dvirlabs.com"
git remote set-url origin "https://${GIT_TOKEN}@git.dvirlabs.com/dvirlabs/infra.git"

if ! git diff --quiet manifests/cloudflared/values.yaml; then
  git add manifests/cloudflared/values.yaml
  git commit -m "chore(cloudflared): auto-merge CNAME entries from sandbox"
  git push origin HEAD
  echo "✅ Changes pushed successfully."
else
  echo "ℹ️  No changes to commit."
fi