#!/bin/bash
set -eu

# google-sheets-api-coordinator/validate.sh
# Validates dependencies and configuration
# Version: 1.0.0

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
VALIDATION_ERRORS=0

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

validate_command() {
  local cmd="$1"
  local message="${2:-Command '$cmd' not found}"

  if command -v "$cmd" &>/dev/null; then
    echo -e "${GREEN}✓${NC} $cmd available"
    return 0
  else
    echo -e "${RED}✗${NC} $message"
    ((VALIDATION_ERRORS++))
    return 1
  fi
}

validate_file() {
  local file="$1"
  local message="${2:-File '$file' not found}"

  if [ -f "$file" ]; then
    echo -e "${GREEN}✓${NC} $file exists"
    return 0
  else
    echo -e "${RED}✗${NC} $message"
    ((VALIDATION_ERRORS++))
    return 1
  fi
}

validate_executable() {
  local file="$1"
  local message="${2:-File '$file' is not executable}"

  if [ -x "$file" ]; then
    echo -e "${GREEN}✓${NC} $file is executable"
    return 0
  else
    echo -e "${RED}✗${NC} $message"
    ((VALIDATION_ERRORS++))
    return 1
  fi
}

main() {
  echo "========================================"
  echo "Validating google-sheets-api-coordinator"
  echo "========================================"
  echo ""

  echo "Checking dependencies..."
  validate_command "bash" "Bash shell required"
  validate_command "jq" "jq (JSON processor) required"
  validate_command "curl" "curl required for API calls"

  echo ""
  echo "Checking skill files..."
  validate_file "$SCRIPT_DIR/SKILL.md" "SKILL.md documentation required"
  validate_executable "$SCRIPT_DIR/api-call.sh" "api-call.sh must be executable"
  validate_executable "$SCRIPT_DIR/test.sh" "test.sh must be executable"

  echo ""
  echo "Testing basic functionality..."
  if "$SCRIPT_DIR/api-call.sh" --help >/dev/null 2>&1; then
    echo -e "${GREEN}✓${NC} api-call.sh responds to --help"
  else
    echo -e "${RED}✗${NC} api-call.sh help command failed"
    ((VALIDATION_ERRORS++))
  fi

  echo ""
  echo "========================================"
  echo "Validation Results"
  echo "========================================"

  if [ $VALIDATION_ERRORS -eq 0 ]; then
    echo -e "${GREEN}✓ All validations passed${NC}"
    exit 0
  else
    echo -e "${RED}✗ ${VALIDATION_ERRORS} validation errors found${NC}"
    exit 1
  fi
}

main "$@"