{
  "webhook": "my-cost-report",
  "before": [
    {
      "url": "http://localhost:8800/usage-clear",
      "body": {}
    },
    {
      "url": "http://localhost:8800/budget/reset",
      "body": {}
    },
    {
      "url": "http://localhost:8800/usage",
      "body": {
        "items": [
          {
            "request_id": "r1",
            "user": "이준호",
            "step": "answer",
            "model": "gpt-4.1-mini",
            "prompt_tokens": 1000,
            "completion_tokens": 100,
            "cost_usd": 0.00056,
            "route": "자동 답변"
          },
          {
            "request_id": "r1",
            "user": "이준호",
            "step": "classify",
            "model": "gpt-5.4-nano",
            "prompt_tokens": 100,
            "completion_tokens": 20,
            "cost_usd": 4.5e-05,
            "route": "자동 답변"
          },
          {
            "request_id": "r2",
            "user": "박서연",
            "step": "answer",
            "model": "gpt-4.1-mini",
            "prompt_tokens": 2000,
            "completion_tokens": 200,
            "cost_usd": 0.00112,
            "route": "자동 답변"
          },
          {
            "request_id": "r3",
            "user": "이준호",
            "step": "answer",
            "model": "gpt-4.1-mini",
            "prompt_tokens": 500,
            "completion_tokens": 40,
            "cost_usd": 0.000264,
            "route": "자동 답변"
          }
        ]
      }
    }
  ],
  "after": [
    {
      "url": "http://localhost:8800/budget/reset",
      "body": {}
    },
    {
      "url": "http://localhost:8800/usage-clear",
      "body": {}
    }
  ],
  "cases": [
    {
      "name": "요약 숫자",
      "body": {
        "requests_per_day": 100,
        "workdays": 22
      },
      "expect": {
        "equals": {
          "requests": 3,
          "calls": 4,
          "cost_usd": 0.001989,
          "avg_usd": 0.000663,
          "top_user": "박서연"
        }
      }
    },
    {
      "name": "모델별 · 한 달 예상",
      "body": {
        "requests_per_day": 100,
        "workdays": 22
      },
      "expect": {
        "equals": {
          "projected_month_usd": 1.4586
        },
        "contains": {
          "by_model": [
            "\"gpt-4.1-mini\": 0.001944"
          ]
        }
      }
    },
    {
      "name": "작은 모델 몫",
      "body": {},
      "expect": {
        "contains": {
          "by_model": [
            "\"gpt-5.4-nano\": 4.5e-05"
          ]
        }
      }
    },
    {
      "name": "예산 남은 금액",
      "body": {},
      "expect": {
        "equals": {
          "daily_budget_usd": 1.0,
          "remaining_usd": 0.998011,
          "over_budget": false
        }
      }
    },
    {
      "name": "예산을 넘으면",
      "body": {},
      "before": [
        {
          "url": "http://localhost:8800/budget",
          "body": {
            "daily_usd": 0.001
          }
        }
      ],
      "expect": {
        "equals": {
          "over_budget": true
        }
      }
    }
  ]
}