#!/usr/bin/env bash
set -euo pipefail

show_help() {
  cat <<'EOF'
sf-dry-run — wrapper for `sf project deploy start --dry-run`

USAGE:
  sf-dry-run -to <ORG_ALIAS_OR_USERNAME> (-sr "<src1>,<src2>[,...]" | -dr <DIRECTORY>) [-ts "<Test1>,<Test2>[,...]"]

OPTIONS:
  -to, --target-org     Org alias or username for --target-org
  -sr, --sources        Comma-separated list of --source-dir paths
  -dr, --directory      Single directory path to validate (alternative to -sr)
  -ts, --tests          Comma-separated list of --tests (enables --test-level RunSpecifiedTests)
  -hp, --help           Show this help

EXAMPLES:
  1) Basic dry-run with multiple flexipages (specific files):
     sf-dry-run -to DEMO-ORG \
       -sr "force-app/main/default/flexipages/Sample_Page.flexipage-meta.xml,force-app/main/default/flexipages/Sample_SalesNavigator.flexipage-meta.xml,force-app/main/default/flexipages/Sample_Role_Record_Page.flexipage-meta.xml"

  2) Dry-run validation for entire directory:
     sf-dry-run -to DEMO-ORG -dr "force-app/main/default/classes"

  3) Dry-run with specified tests:
     sf-dry-run -to DEMO-ORG \
       -sr "force-app/main/default/flexipages/Demo_Page.flexipage-meta.xml,force-app/main/default/flexipages/Demo_Page_Backup_With_SalesNavigator.flexipage-meta.xml" \
       -ts "SelectorOpportunity_Test,SelectorOpportunity2_Test"

Notes:
- Use -sr for specific files (comma-separated) OR -dr for entire directories (not both).
- Pass absolute or repo-relative paths.
- Multiple tests are comma-separated in -ts; they will be expanded to multiple --tests flags.
EOF
}

ORG=""
DIR_PATH=""
declare -a SOURCES_ARR=()
declare -a TESTS_ARR=()

if [[ $# -eq 0 ]]; then
  show_help
  exit 0
fi

# Parse command line arguments using manual parsing for two-character options
while [[ $# -gt 0 ]]; do
    case $1 in
        -to|--target-org)
            ORG="$2"
            shift 2
            ;;
        -sr|--sources)
            IFS=',' read -r -a SOURCES_ARR <<< "$2"
            shift 2
            ;;
        -dr|--directory)
            DIR_PATH="$2"
            shift 2
            ;;
        -ts|--tests)
            IFS=',' read -r -a TESTS_ARR <<< "$2"
            shift 2
            ;;
        -hp|--help)
            show_help
            exit 0
            ;;
        *)
            echo "Unknown option: $1" >&2
            echo
            show_help
            exit 1
            ;;
    esac
done

# Validate that either -sr or -dr is provided, but not both
if [[ -n "$DIR_PATH" && ${#SOURCES_ARR[@]} -gt 0 ]]; then
  echo "Error: Cannot use both -sr and -dr options. Use -sr for specific files or -dr for directories." >&2
  echo
  show_help
  exit 1
fi

# Validate that at least one source option is provided
if [[ -z "$DIR_PATH" && ${#SOURCES_ARR[@]} -eq 0 ]]; then
  echo "Error: Must provide either -sr (specific files) or -dr (directory path)." >&2
  echo
  show_help
  exit 1
fi

# Silent environment check - verify SF CLI is available
if ! command -v sf >/dev/null 2>&1; then
  echo "❌ Salesforce CLI (sf) not found!"
  echo
  echo "Running environment check to help you get started..."
  echo
  
  # Try to find and run sf-check in the same directory as this script
  SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
  if [[ -x "$SCRIPT_DIR/sf-check" ]]; then
    "$SCRIPT_DIR/sf-check"
  elif command -v sf-check >/dev/null 2>&1; then
    sf-check
  else
    echo "sf-check not found. Please install the Salesforce CLI from:"
    echo "https://developer.salesforce.com/tools/sfdxcli"
  fi
  exit 1
fi

CMD=(sf project deploy start --dry-run)

# sources (specific files)
for SRC in "${SOURCES_ARR[@]:-}"; do
  [[ -n "$SRC" ]] && CMD+=(--source-dir "$SRC")
done

# directory path
[[ -n "$DIR_PATH" ]] && CMD+=(--source-dir "$DIR_PATH")

# org
[[ -n "$ORG" ]] && CMD+=(--target-org "$ORG")

# tests
if [[ ${#TESTS_ARR[@]:-0} -gt 0 ]]; then
  CMD+=(--test-level RunSpecifiedTests)
  for T in "${TESTS_ARR[@]}"; do
    [[ -n "$T" ]] && CMD+=(--tests "$T")
  done
fi

echo ">>> Running: ${CMD[*]}"
exec "${CMD[@]}"