use std::fs::{self, File};
use std::io::Write;
use tempfile::tempdir;
use serde_json::json;
use mock_server::models::{MockRule, Payload};
use mock_server::loader::MockLoader;
use mock_server::router::MockRouter;
use std::collections::HashMap;

/// 模块一：验证 Config 反序列化逻辑
#[test]
fn test_config_parsing_scenarios() {
    // 场景 A: 验证单接口配置 (增加 body 结构化校验)
    let json_single = r#"{
        "name": "auth_v1",
        "request": {
            "method": "POST",
            "path": "/api/v1/login",
            "body": { "user": "admin" }
        },
        "response": { "status": 200, "body": "welcome" }
    }"#;
    let rule: MockRule = serde_json::from_str(json_single).expect("解析单接口失败");
    assert!(rule.request.body.is_some());
    assert_eq!(rule.request.body.as_ref().unwrap()["user"], "admin");

    // 场景 B: 验证 Smart Body 的 file:// 协议字符串解析
    let json_file = r#"{
        "name": "export_api",
        "request": { "method": "GET", "path": "/download" },
        "response": { "status": 200, "body": "file://./storage/data.zip" }
    }"#;
    let rule_file: MockRule = serde_json::from_str(json_file).unwrap();
    assert!(rule_file.response.body.starts_with("file://"));
}

/// 模块二：验证 Loader 递归扫描与索引构建
#[test]
fn test_loader_recursive_indexing() {
    let temp_root = tempdir().expect("无法创建临时目录");
    let root_path = temp_root.path();

    let auth_path = root_path.join("v1/auth");
    fs::create_dir_all(&auth_path).unwrap();

    let mut f1 = File::create(auth_path.join("login.json")).unwrap();
    writeln!(f1, r#"{{"name":"l1","request":{{"method":"POST","path":"/api/v1/login"}},"response":{{"status":200,"body":"ok"}}}}"#).unwrap();

    let mut f2 = File::create(root_path.join("health.json")).unwrap();
    writeln!(f2, r#"{{"name":"s1","request":{{"method":"GET","path":"/health"}},"response":{{"status":200,"body":"up"}}}}"#).unwrap();

    let index = MockLoader::load_all_from_dir(root_path);

    assert!(index.contains_key("api"));
    assert!(index.contains_key("health"));
    let total: usize = index.values().map(|v| v.len()).sum();
    assert_eq!(total, 2);
}

/// 模块三：验证 Router 匹配逻辑（使用新的 Payload 类型）
#[test]
fn test_router_matching_logic() {
    let mut index = HashMap::new();

    // 1. 准备带有 Body 的规则
    let rule_json = r#"{
        "name": "auth_v1",
        "request": {
            "method": "POST",
            "path": "/api/v1/login",
            "headers": { "Content-Type": "application/json" },
            "body": { "code": 123 }
        },
        "response": { "status": 200, "body": "token_123" }
    }"#;
    let rule_auth: MockRule = serde_json::from_str(rule_json).unwrap();

    index.insert("api".to_string(), vec![rule_auth.clone()]);
    let router = MockRouter::new(index);

    // 2. 测试场景 A：JSON 完全匹配
    let mut headers = HashMap::new();
    headers.insert("Content-Type".to_string(), "application/json".to_string());

    let payload = Payload::Json(json!({ "code": 123 }));

    let matched = router.match_rule(
        "POST",
        "/api/v1/login",
        &HashMap::new(),
        &headers,
        &payload,
    );
    assert!(matched.is_some());
    assert_eq!(matched.unwrap().name, "auth_v1");

    // 3. 测试场景 B：Body 不匹配
    let wrong_payload = Payload::Json(json!({ "code": 456 }));
    let matched_fail = router.match_rule(
        "POST",
        "/api/v1/login",
        &HashMap::new(),
        &headers,
        &wrong_payload,
    );
    assert!(matched_fail.is_none(), "Body 不一致时不应匹配成功");

    // 4. 测试场景 C：末尾斜杠兼容性测试
    let matched_slash = router.match_rule(
        "POST",
        "/api/v1/login/",
        &HashMap::new(),
        &headers,
        &payload,
    );
    assert!(matched_slash.is_some());
}

/// 模块四：验证不同 Payload 类型的匹配
#[test]
fn test_payload_type_matching() {
    let mut index = HashMap::new();

    // XML 规则
    let xml_rule: MockRule = serde_json::from_str(r#"{
        "name": "xml_api",
        "request": {
            "method": "POST",
            "path": "/api/xml",
            "body": "<root><name>test</name></root>"
        },
        "response": { "status": 200, "body": "ok" }
    }"#).unwrap();

    // Form 规则
    let form_rule: MockRule = serde_json::from_str(r#"{
        "name": "form_api",
        "request": {
            "method": "POST",
            "path": "/api/form",
            "body": { "username": "admin", "password": "123456" }
        },
        "response": { "status": 200, "body": "login_ok" }
    }"#).unwrap();

    // Text 规则
    let text_rule: MockRule = serde_json::from_str(r#"{
        "name": "text_api",
        "request": {
            "method": "POST",
            "path": "/api/text",
            "body": "plain text content"
        },
        "response": { "status": 200, "body": "text_ok" }
    }"#).unwrap();

    index.insert("api".to_string(), vec![xml_rule, form_rule, text_rule]);
    let router = MockRouter::new(index);

    // 测试 XML 匹配
    let xml_payload = Payload::Xml("<root><name>test</name></root>".to_string());
    let xml_matched = router.match_rule("POST", "/api/xml", &HashMap::new(), &HashMap::new(), &xml_payload);
    assert!(xml_matched.is_some(), "XML 应该匹配");
    assert_eq!(xml_matched.unwrap().name, "xml_api");

    // 测试 Form 匹配
    let mut form_data = HashMap::new();
    form_data.insert("username".to_string(), "admin".to_string());
    form_data.insert("password".to_string(), "123456".to_string());
    let form_payload = Payload::Form(form_data);
    let form_matched = router.match_rule("POST", "/api/form", &HashMap::new(), &HashMap::new(), &form_payload);
    assert!(form_matched.is_some(), "Form 应该匹配");
    assert_eq!(form_matched.unwrap().name, "form_api");

    // 测试 Text 匹配
    let text_payload = Payload::Text("plain text content".to_string());
    let text_matched = router.match_rule("POST", "/api/text", &HashMap::new(), &HashMap::new(), &text_payload);
    assert!(text_matched.is_some(), "Text 应该匹配");
    assert_eq!(text_matched.unwrap().name, "text_api");

    // 测试 None 不匹配
    let none_payload = Payload::None;
    let none_matched = router.match_rule("POST", "/api/text", &HashMap::new(), &HashMap::new(), &none_payload);
    assert!(none_matched.is_none(), "None 不应该匹配有 body 的规则");
}

/// 模块五：验证 Payload 方法
#[test]
fn test_payload_methods() {
    // 测试 content_type_name
    assert_eq!(Payload::Json(json!({})).content_type_name(), "application/json");
    assert_eq!(Payload::Xml("".to_string()).content_type_name(), "application/xml");
    assert_eq!(Payload::Form(HashMap::new()).content_type_name(), "application/x-www-form-urlencoded");
    assert_eq!(Payload::Multipart(HashMap::new()).content_type_name(), "multipart/form-data");
    assert_eq!(Payload::Text("".to_string()).content_type_name(), "text/plain");
    assert_eq!(Payload::None.content_type_name(), "none");

    // 测试 to_compare_string
    let json_payload = Payload::Json(json!({"a": 1, "b": 2}));
    assert!(json_payload.to_compare_string().contains("\"a\":1"));

    let text_payload = Payload::Text("hello world".to_string());
    assert_eq!(text_payload.to_compare_string(), "hello world");

    let none_payload = Payload::None;
    assert_eq!(none_payload.to_compare_string(), "");

    // 测试 Form 排序后的字符串
    let mut form_map = HashMap::new();
    form_map.insert("b".to_string(), "2".to_string());
    form_map.insert("a".to_string(), "1".to_string());
    let form_payload = Payload::Form(form_map);
    assert_eq!(form_payload.to_compare_string(), "a=1&b=2");

    // 测试 Multipart 排序后的字符串
    let mut multipart_map = HashMap::new();
    multipart_map.insert("b".to_string(), "2".to_string());
    multipart_map.insert("a".to_string(), "1".to_string());
    let multipart_payload = Payload::Multipart(multipart_map);
    assert_eq!(multipart_payload.to_compare_string(), "a=1&b=2");
}

/// 模块六：验证 Multipart 匹配
#[test]
fn test_multipart_matching() {
    let mut index = HashMap::new();

    // 数组形式：只匹配字段名
    let array_rule: MockRule = serde_json::from_str(r#"{
        "name": "upload_array",
        "request": {
            "method": "POST",
            "path": "/api/upload/array",
            "body": ["file", "description"]
        },
        "response": { "status": 200, "body": "ok" }
    }"#).unwrap();

    // 对象形式：匹配键名
    let object_rule: MockRule = serde_json::from_str(r#"{
        "name": "upload_object",
        "request": {
            "method": "POST",
            "path": "/api/upload/object",
            "body": { "username": "admin", "role": "user" }
        },
        "response": { "status": 200, "body": "ok" }
    }"#).unwrap();

    index.insert("api".to_string(), vec![array_rule, object_rule]);
    let router = MockRouter::new(index);

    // 测试数组形式：匹配字段名
    let mut full_data = HashMap::new();
    full_data.insert("file".to_string(), "file_content".to_string());
    full_data.insert("description".to_string(), "test file".to_string());
    let full_payload = Payload::Multipart(full_data);
    let matched = router.match_rule("POST", "/api/upload/array", &HashMap::new(), &HashMap::new(), &full_payload);
    assert!(matched.is_some(), "包含所有字段应该匹配");

    // 测试数组形式：缺少字段
    let mut partial_data = HashMap::new();
    partial_data.insert("file".to_string(), "file_content".to_string());
    let partial_payload = Payload::Multipart(partial_data);
    let not_matched = router.match_rule("POST", "/api/upload/array", &HashMap::new(), &HashMap::new(), &partial_payload);
    assert!(not_matched.is_none(), "缺少字段不应该匹配");

    // 测试对象形式：键名匹配（值被忽略）
    let mut correct_data = HashMap::new();
    correct_data.insert("username".to_string(), "any_value".to_string());
    correct_data.insert("role".to_string(), "any_role".to_string());
    let correct_payload = Payload::Multipart(correct_data);
    let object_matched = router.match_rule("POST", "/api/upload/object", &HashMap::new(), &HashMap::new(), &correct_payload);
    assert!(object_matched.is_some(), "键名匹配应该成功");

    // 测试对象形式：键名不匹配
    let mut wrong_data = HashMap::new();
    wrong_data.insert("username".to_string(), "admin".to_string());
    wrong_data.insert("other_field".to_string(), "value".to_string());
    let wrong_payload = Payload::Multipart(wrong_data);
    let wrong_matched = router.match_rule("POST", "/api/upload/object", &HashMap::new(), &HashMap::new(), &wrong_payload);
    assert!(wrong_matched.is_none(), "缺少键名不应该成功");
}

/// 模块七：验证 XML 格式化匹配
#[test]
fn test_xml_normalized_matching() {
    let mut index = HashMap::new();

    // JSON 中的 XML（紧凑格式）
    let xml_rule: MockRule = serde_json::from_str(r#"{
        "name": "xml_api",
        "request": {
            "method": "POST",
            "path": "/api/xml",
            "body": "<user><id>1001</id><name>张三</name></user>"
        },
        "response": { "status": 200, "body": "ok" }
    }"#).unwrap();

    index.insert("api".to_string(), vec![xml_rule]);
    let router = MockRouter::new(index);

    // 测试 1：紧凑格式的 XML
    let compact_xml = Payload::Xml("<user><id>1001</id><name>张三</name></user>".to_string());
    let matched1 = router.match_rule("POST", "/api/xml", &HashMap::new(), &HashMap::new(), &compact_xml);
    assert!(matched1.is_some(), "紧凑格式 XML 应该匹配");

    // 测试 2：带 XML 声明的请求
    let xml_with_decl = Payload::Xml("<?xml version=\"1.0\" encoding=\"UTF-8\"?><user><id>1001</id><name>张三</name></user>".to_string());
    let matched2 = router.match_rule("POST", "/api/xml", &HashMap::new(), &HashMap::new(), &xml_with_decl);
    assert!(matched2.is_some(), "带声明的 XML 应该匹配");

    // 测试 3：内容不同，不应该匹配
    let wrong_xml = Payload::Xml("<user><id>1002</id><name>李四</name></user>".to_string());
    let matched3 = router.match_rule("POST", "/api/xml", &HashMap::new(), &HashMap::new(), &wrong_xml);
    assert!(matched3.is_none(), "内容不同的 XML 不应该匹配");
}