"""JRXML 验证服务的单元测试。"""

import pytest
from fastapi.testclient import TestClient

from validation_service.main import app

client = TestClient(app)


class TestValidationService:
    def test_health_endpoint(self):
        resp = client.get("/health")
        assert resp.status_code == 200
        data = resp.json()
        assert data["status"] == "ok"

    def test_empty_jrxml(self):
        resp = client.post("/validate", json={"jrxml": ""})
        assert resp.status_code == 200
        assert resp.json()["valid"] is False
        assert "空" in resp.json()["error"]

    def test_invalid_xml(self):
        resp = client.post("/validate", json={"jrxml": "<not>xml<<<"})
        assert resp.status_code == 200
        data = resp.json()
        assert data["valid"] is False

    def test_missing_page_dimensions(self):
        jrxml = """<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports"
              name="TestReport" columnWidth="555"
              leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <queryString><![CDATA[SELECT * FROM test]]></queryString>
    <field name="col1" class="java.lang.String"/>
    <title><band height="30"/></title>
    <detail>
        <band height="20">
            <textField>
                <reportElement x="0" y="0" width="100" height="20"/>
                <textFieldExpression><![CDATA[$F{col1}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>"""
        resp = client.post("/validate", json={"jrxml": jrxml})
        assert resp.status_code == 200
        data = resp.json()
        assert data["valid"] is False
        assert "pageWidth" in data["error"]

    def test_valid_jrxml(self):
        jrxml = """<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports"
              name="ValidReport" pageWidth="595" pageHeight="842" columnWidth="555"
              leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <queryString><![CDATA[SELECT emp_id, emp_name FROM employees]]></queryString>
    <field name="emp_id" class="java.lang.Integer"/>
    <field name="emp_name" class="java.lang.String"/>
    <title><band height="30">
        <staticText>
            <reportElement x="0" y="0" width="555" height="30"/>
            <text><![CDATA[Report Title]]></text>
        </staticText>
    </band></title>
    <detail>
        <band height="20">
            <textField>
                <reportElement x="0" y="0" width="100" height="20"/>
                <textFieldExpression><![CDATA[$F{emp_id}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="110" y="0" width="200" height="20"/>
                <textFieldExpression><![CDATA[$F{emp_name}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>"""
        resp = client.post("/validate", json={"jrxml": jrxml})
        assert resp.status_code == 200
        data = resp.json()
        assert data["valid"] is True, f"验证应该通过，实际错误: {data.get('error')}"

    def test_missing_field_declaration(self):
        jrxml = """<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports"
              name="BadReport" pageWidth="595" pageHeight="842" columnWidth="555"
              leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <queryString><![CDATA[SELECT id FROM t]]></queryString>
    <field name="id" class="java.lang.Integer"/>
    <detail>
        <band height="20">
            <textField>
                <reportElement x="0" y="0" width="100" height="20"/>
                <textFieldExpression><![CDATA[$F{missing_field}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
</jasperReport>"""
        resp = client.post("/validate", json={"jrxml": jrxml})
        assert resp.status_code == 200
        data = resp.json()
        assert data["valid"] is False
        assert "missing_field" in data["error"]