{
  "_comment": "Analytics Feature - Package.json Template",
  "_description": "This file demonstrates layered override system for feature-specific dependencies. It will be merged with base package.json when analytics feature is enabled. Layer: Feature > Template > Framework",
  
  "scripts": {
    "analytics:dev": "concurrently \"npm run analytics:server\" \"npm run analytics:ui\"",
    "analytics:server": "node scripts/features/analytics/dev-server.js",
    "analytics:ui": "node scripts/features/analytics/dashboard-ui.js",
    "analytics:build": "node scripts/features/analytics/build-dashboard.js",
    "analytics:test": "jest tests/analytics --coverage --verbose",
    "analytics:e2e": "playwright test tests/e2e/analytics.spec.js",
    "analytics:report": "node scripts/features/analytics/generate-report.js",
    "analytics:monitor": "node scripts/features/analytics/monitor.js --daemon",
    "analytics:export": "node scripts/features/analytics/export-data.js",
    "analytics:validate": "node scripts/features/analytics/validate-config.js",
    "analytics:benchmark": "node scripts/features/analytics/benchmark.js",
    "analytics:docs": "typedoc src/analytics --out docs/analytics",
    "analytics:lint": "eslint src/analytics scripts/features/analytics --fix",
    "analytics:format": "prettier src/analytics scripts/features/analytics --write"
  },

  "dependencies": {
    "@analytics/core": "^2.9.0",
    "@analytics/google-analytics": "^1.0.7",
    "@analytics/segment": "^1.2.4",
    "chart.js": "^4.4.0",
    "chartjs-adapter-date-fns": "^3.0.0",
    "date-fns": "^2.30.0",
    "d3": "^7.8.5",
    "d3-scale": "^4.0.2",
    "d3-array": "^3.2.4",
    "recharts": "^2.8.0",
    "victory": "^37.0.2",
    "plotly.js": "^2.27.0",
    "apache-arrow": "^14.0.1",
    "web-vitals": "^3.5.0",
    "performance-observer": "^1.0.1",
    "@sentry/browser": "^7.81.1",
    "mixpanel-browser": "^2.47.0",
    "amplitude-js": "^8.21.6",
    "hotjar-js": "^1.0.1"
  },

  "devDependencies": {
    "@types/d3": "^7.4.3",
    "@types/d3-scale": "^4.0.6",
    "@types/d3-array": "^3.0.9",
    "@types/chart.js": "^2.9.37",
    "@testing-library/jest-dom": "^6.1.4",
    "@testing-library/dom": "^9.3.4",
    "jest": "^29.7.0",
    "jest-environment-jsdom": "^29.7.0",
    "@playwright/test": "^1.40.0",
    "playwright": "^1.40.0",
    "puppeteer": "^21.5.2",
    "jsdom": "^23.0.1",
    "canvas": "^2.11.2",
    "chartjs-node-canvas": "^4.1.6",
    "webpack": "^5.89.0",
    "webpack-cli": "^5.1.4",
    "webpack-dev-server": "^4.15.1",
    "babel-loader": "^9.1.3",
    "@babel/core": "^7.23.3",
    "@babel/preset-env": "^7.23.3",
    "@babel/preset-typescript": "^7.23.3",
    "typescript": "^5.2.2",
    "ts-loader": "^9.5.1",
    "ts-jest": "^29.1.1",
    "typedoc": "^0.25.4",
    "eslint": "^8.54.0",
    "@typescript-eslint/eslint-plugin": "^6.12.0",
    "@typescript-eslint/parser": "^6.12.0",
    "prettier": "^3.1.0",
    "concurrently": "^8.2.2",
    "nodemon": "^3.0.1",
    "cross-env": "^7.0.3"
  },

  "optionalDependencies": {
    "sharp": "^0.32.6",
    "canvas": "^2.11.2",
    "@node-rs/jieba": "^1.7.0"
  },

  "peerDependencies": {
    "react": "^18.0.0",
    "react-dom": "^18.0.0"
  },

  "jest": {
    "testEnvironment": "jsdom",
    "setupFilesAfterEnv": ["<rootDir>/tests/analytics/setup.js"],
    "testMatch": [
      "<rootDir>/tests/analytics/**/*.test.{js,ts}",
      "<rootDir>/src/analytics/**/*.test.{js,ts}"
    ],
    "collectCoverageFrom": [
      "src/analytics/**/*.{js,ts}",
      "scripts/features/analytics/**/*.{js,ts}",
      "!**/*.d.ts",
      "!**/node_modules/**"
    ],
    "coverageThreshold": {
      "global": {
        "branches": 80,
        "functions": 80,
        "lines": 80,
        "statements": 80
      }
    },
    "transform": {
      "^.+\\.(ts|tsx)$": "ts-jest",
      "^.+\\.(js|jsx)$": "babel-jest"
    }
  },

  "eslintConfig": {
    "extends": [
      "eslint:recommended",
      "@typescript-eslint/recommended"
    ],
    "parser": "@typescript-eslint/parser",
    "plugins": ["@typescript-eslint"],
    "rules": {
      "@typescript-eslint/no-unused-vars": "error",
      "@typescript-eslint/explicit-function-return-type": "warn",
      "prefer-const": "error",
      "no-console": "warn"
    },
    "ignorePatterns": [
      "dist/",
      "node_modules/",
      "coverage/"
    ]
  },

  "prettier": {
    "semi": false,
    "singleQuote": true,
    "tabWidth": 2,
    "trailingComma": "es5",
    "printWidth": 100,
    "arrowParens": "avoid"
  },

  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not dead",
    "not ie 11"
  ],

  "engines": {
    "node": ">=18.0.0",
    "npm": ">=9.0.0"
  },

  "_rustelo_feature": {
    "name": "analytics",
    "version": "1.0.0",
    "description": "Comprehensive analytics and monitoring system",
    "category": "monitoring",
    "dependencies": {
      "rust_crates": [
        "serde_json",
        "chrono", 
        "tokio",
        "reqwest",
        "prometheus",
        "tracing"
      ],
      "system_deps": [
        "postgresql-client",
        "redis-tools"
      ]
    },
    "scripts": {
      "post_install": "node scripts/features/analytics/post-install.js",
      "pre_uninstall": "node scripts/features/analytics/pre-uninstall.js"
    },
    "config": {
      "dashboard_port": 3001,
      "api_endpoints": [
        "/api/analytics/metrics",
        "/api/analytics/events", 
        "/api/analytics/reports"
      ],
      "default_retention_days": 30,
      "max_events_per_minute": 1000
    }
  },

  "_layered_merge": {
    "strategy": "deep_merge",
    "precedence": "feature_over_base",
    "conflict_resolution": "feature_wins",
    "array_merge": "concat_unique",
    "script_merge": "feature_prefix"
  }
}