use crate::{db, db::log_event};
use serde_json::{json, Value};
use std::path::PathBuf;

/// 单一全局服务器的 settings.json key / 全局注册名
const MCP_KEY: &str = "lian-jing";
/// 旧组级 key 前缀——仅用于注入时清理存量配置，T6 收尾后可删
const LEGACY_KEY_PREFIX: &str = "lian-jing:group-";
const CODEX_MCP_MANAGED_START: &str = "# LIANJING_MCP_MANAGED_START";
const CODEX_MCP_MANAGED_END: &str = "# LIANJING_MCP_MANAGED_END";
const CONTEXT_SCHEMA_VERSION: u8 = 1;

// ── 路径解析 ──────────────────────────────────────────────────────────────────

/// 校验并解析登记路径：空串/空白/相对路径一律拒绝。
/// 空路径经 PathBuf::from("") 会解析到炼境进程 cwd——2026-07-15 空路径登记
/// 曾把 settings.json/liangjing.json 写进 src-tauri/（apply 链路同日已拦，
/// inject 链路本处单点补防）。
fn validate_registered_path(raw: &str, field: &str) -> Result<PathBuf, String> {
    let trimmed = raw.trim();
    if trimmed.is_empty() {
        return Err(format!("{field} 为空，拒绝解析（会写进炼境进程 cwd）"));
    }
    let path = PathBuf::from(trimmed);
    if !path.is_absolute() {
        return Err(format!("{field} 非绝对路径，拒绝解析: {trimmed:?}"));
    }
    Ok(path)
}

/// 解析项目根目录路径（WSL 项目自动转为 Windows UNC 路径）
fn project_root(project_id: &str) -> Result<PathBuf, String> {
    let conn = db::pool().get().map_err(|e| e.to_string())?;
    project_root_with_conn(&conn, project_id)
}

/// project_root 的依赖注入版：连接由调用方传入（业务层复用 + in-memory 测试）
pub(crate) fn project_root_with_conn(
    conn: &rusqlite::Connection,
    project_id: &str,
) -> Result<PathBuf, String> {
    let row: rusqlite::Result<(Option<String>, Option<String>, Option<String>)> = conn.query_row(
        "SELECT win_path, wsl_path, platform FROM project_workspaces WHERE id = ?1",
        [project_id],
        |r| Ok((r.get(0)?, r.get(1)?, r.get(2)?)),
    );

    let (win_path, wsl_path, platform) = row.map_err(|_| format!("项目 {} 不存在", project_id))?;

    if platform.as_deref() == Some("wsl") {
        let wsl = wsl_path.ok_or_else(|| "WSL 项目未配置 wsl_path".to_string())?;
        if wsl.trim().is_empty() {
            return Err("wsl_path 为空，拒绝解析（会指向 WSL 发行版根目录）".to_string());
        }
        let distro: String = conn
            .query_row(
                "SELECT value FROM settings WHERE key = 'wsl_distro'",
                [],
                |r| r.get(0),
            )
            .unwrap_or_else(|_| "Ubuntu".to_string());
        let inner = wsl.trim_start_matches('/').replace('/', "\\");
        Ok(PathBuf::from(format!(
            "\\\\wsl.localhost\\{}\\{}",
            distro, inner
        )))
    } else {
        let win = win_path.ok_or_else(|| "Windows 项目未配置 win_path".to_string())?;
        validate_registered_path(&win, "win_path")
    }
}

fn settings_path(project_id: &str) -> Result<PathBuf, String> {
    Ok(project_root(project_id)?
        .join(".claude")
        .join("settings.json"))
}

fn liangjing_path(project_id: &str) -> Result<PathBuf, String> {
    Ok(project_root(project_id)?
        .join(".claude")
        .join("liangjing.json"))
}

fn codex_config_path(project_id: &str) -> Result<PathBuf, String> {
    Ok(project_root(project_id)?.join(".codex").join("config.toml"))
}

fn read_context_object(path: &PathBuf, label: &str) -> Result<Value, String> {
    match std::fs::read_to_string(path) {
        Ok(content) if content.trim().is_empty() => Ok(json!({})),
        Ok(content) => serde_json::from_str::<Value>(&content)
            .map_err(|error| format!("读取 {label} 失败（{}）: {error}", path.display()))
            .and_then(|value| {
                if value.is_object() {
                    Ok(value)
                } else {
                    Err(format!(
                        "{label} 顶层必须是 JSON 对象（{}）",
                        path.display()
                    ))
                }
            }),
        Err(error) if error.kind() == std::io::ErrorKind::NotFound => Ok(json!({})),
        Err(error) => Err(format!("读取 {label} 失败（{}）: {error}", path.display())),
    }
}

fn write_context_object(path: &PathBuf, value: &Value, label: &str) -> Result<(), String> {
    if let Some(parent) = path.parent() {
        std::fs::create_dir_all(parent)
            .map_err(|error| format!("创建 {label} 目录失败: {error}"))?;
    }
    let content = serde_json::to_string_pretty(value).map_err(|error| error.to_string())?;
    std::fs::write(path, content).map_err(|error| format!("写入 {label} 失败: {error}"))
}

/// 写工具无关的项目身份锚点。项目根目录是边界，客户端项目 UI 或用户级配置均不是身份来源。
/// 合并写入：保留未来字段与项目定制字段，只有炼境拥有的身份字段会被刷新。
fn write_canonical_context_at(root: &std::path::Path, project_id: &str) -> Result<(), String> {
    let path = root.join(".lian-jing").join("context.json");
    let mut ctx = read_context_object(&path, "canonical 项目上下文")?;
    let obj = ctx.as_object_mut().expect("ctx 必为 JSON 对象");
    obj.insert("schema_version".into(), json!(CONTEXT_SCHEMA_VERSION));
    obj.insert("project_id".into(), json!(project_id));
    write_context_object(&path, &ctx, "canonical 项目上下文")
}

fn write_canonical_context(project_id: &str) -> Result<(), String> {
    let root = project_root(project_id)?;
    write_canonical_context_at(&root, project_id)
}

/// 写旧 Claude 上下文投影。它不是项目身份的单一事实来源，保留是为了兼容已接入项目。
fn write_liangjing_context(project_id: &str, port: u16) -> Result<(), String> {
    let path = liangjing_path(project_id)?;
    let mut ctx = read_context_object(&path, "Claude 兼容上下文")?;
    let obj = ctx.as_object_mut().expect("ctx 必为 JSON 对象");
    obj.insert("project_id".into(), json!(project_id));
    obj.insert("mcp_port".into(), json!(port));
    obj.remove("group_id");
    write_context_object(&path, &ctx, "Claude 兼容上下文")
}

/// 查找 claude CLI 路径（优先环境变量 CLAUDE_BIN，然后常用安装目录，最后 where 命令）
fn find_claude_bin() -> Option<String> {
    if let Ok(path) = std::env::var("CLAUDE_BIN") {
        if std::path::Path::new(&path).exists() {
            return Some(path);
        }
    }

    let home = std::env::var("USERPROFILE")
        .or_else(|_| std::env::var("HOME"))
        .unwrap_or_default();

    let candidates = [
        format!(r"{}\.local\bin\claude.exe", home),
        format!(r"{}\AppData\Local\AnthropicClaude\claude.exe", home),
        r"C:\Program Files\AnthropicClaude\claude.exe".to_string(),
    ];

    for c in &candidates {
        if std::path::Path::new(c).exists() {
            return Some(c.clone());
        }
    }

    // 最后尝试 where 命令（GUI 进程 PATH 可能不含用户 bin，but worth trying）
    if let Ok(out) = std::process::Command::new("where")
        .arg("claude.exe")
        .output()
    {
        if out.status.success() {
            if let Ok(stdout) = String::from_utf8(out.stdout) {
                if let Some(line) = stdout.lines().next() {
                    return Some(line.trim().to_string());
                }
            }
        }
    }

    None
}

/// 查找 git-bash 路径（claude CLI 在 Windows 上必需）。
/// 顺序：环境变量（校验存在）→ 常见安装位置（Program Files / Scoop）→ 从 git.exe 位置推导
fn find_git_bash() -> Option<String> {
    if let Ok(p) = std::env::var("CLAUDE_CODE_GIT_BASH_PATH") {
        if std::path::Path::new(&p).exists() {
            return Some(p);
        }
    }

    let home = std::env::var("USERPROFILE").unwrap_or_default();
    let scoop = std::env::var("SCOOP").unwrap_or_else(|_| format!(r"{}\scoop", home));
    let candidates = [
        r"C:\Program Files\Git\bin\bash.exe".to_string(),
        format!(r"{}\apps\git\current\bin\bash.exe", scoop),
    ];
    for c in &candidates {
        if std::path::Path::new(c).exists() {
            return Some(c.clone());
        }
    }

    // 从 git.exe 推导：<root>\cmd\git.exe / <root>\mingw64\bin\git.exe → <root>\bin\bash.exe
    if let Ok(out) = std::process::Command::new("where").arg("git.exe").output() {
        if out.status.success() {
            for line in String::from_utf8_lossy(&out.stdout).lines() {
                let git = std::path::Path::new(line.trim());
                if let Some(root) = git.parent().and_then(|d| d.parent()) {
                    let bash = root.join("bin").join("bash.exe");
                    if bash.exists() {
                        return Some(bash.to_string_lossy().to_string());
                    }
                }
            }
        }
    }
    None
}

/// 将单一全局 lian-jing 服务器注册到 Claude 全局配置（~/.claude.json）。
/// best-effort，失败仅记录日志；返回是否成功（同名已存在视为成功，作为 CLI 链路健康信号）
fn try_register_globally(port: u16) -> bool {
    let server_url = format!("http://127.0.0.1:{}/mcp", port);

    let Some(claude_bin) = find_claude_bin() else {
        db::log_event(
            "mcp_inject",
            "warn",
            "claude CLI 未找到，跳过全局 MCP 注册",
            None,
        );
        return false;
    };
    let Some(git_bash) = find_git_bash() else {
        db::log_event(
            "mcp_inject",
            "warn",
            "git-bash 未找到（claude CLI 依赖），跳过全局 MCP 注册",
            None,
        );
        return false;
    };

    match std::process::Command::new(&claude_bin)
        .args([
            "mcp",
            "add",
            "--transport",
            "sse",
            "-s",
            "user",
            MCP_KEY,
            &server_url,
        ])
        .env("CLAUDE_CODE_GIT_BASH_PATH", &git_bash)
        .output()
    {
        Ok(out) if out.status.success() => {
            db::log_event("mcp_inject", "info", "全局 MCP 注册成功", Some(MCP_KEY));
            true
        }
        Ok(out) => {
            let combined = format!(
                "{}{}",
                String::from_utf8_lossy(&out.stdout),
                String::from_utf8_lossy(&out.stderr)
            );
            // 同名已存在（exit 1）不是故障——CLI 链路健康，注册目标已达成
            if combined.contains("already exists") {
                return true;
            }
            db::log_event(
                "mcp_inject",
                "warn",
                &format!("claude mcp add 非零退出: {}", combined),
                Some(MCP_KEY),
            );
            false
        }
        Err(e) => {
            db::log_event(
                "mcp_inject",
                "warn",
                &format!("执行 claude mcp add 失败: {}", e),
                Some(MCP_KEY),
            );
            false
        }
    }
}

/// 清理旧组级全局注册（lian-jing-{gid}，含完整 UUID 与短 8 位两种历史命名）。
/// 幂等 best-effort：不存在的名字 remove 失败仅忽略。返回成功移除的名字列表。
pub fn cleanup_legacy_global_registrations() -> Vec<String> {
    let Some(claude_bin) = find_claude_bin() else {
        db::log_event(
            "mcp_inject",
            "warn",
            "claude CLI 未找到，跳过旧注册清理",
            None,
        );
        return Vec::new();
    };
    let Some(git_bash) = find_git_bash() else {
        db::log_event(
            "mcp_inject",
            "warn",
            "git-bash 未找到，跳过旧注册清理",
            None,
        );
        return Vec::new();
    };
    let Ok(conn) = db::pool().get() else {
        return Vec::new();
    };
    let group_ids: Vec<String> = conn
        .prepare("SELECT id FROM product_groups")
        .and_then(|mut stmt| {
            stmt.query_map([], |r| r.get::<_, String>(0))
                .map(|iter| iter.filter_map(|r| r.ok()).collect())
        })
        .unwrap_or_default();

    let mut removed = Vec::new();
    for gid in &group_ids {
        let mut names = vec![format!("lian-jing-{}", gid)];
        if gid.len() > 8 {
            names.push(format!("lian-jing-{}", &gid[..8]));
        }
        for name in names {
            let ok = std::process::Command::new(&claude_bin)
                .args(["mcp", "remove", "-s", "user", &name])
                .env("CLAUDE_CODE_GIT_BASH_PATH", &git_bash)
                .output()
                .map(|out| out.status.success())
                .unwrap_or(false);
            if ok {
                db::log_event("mcp_inject", "info", "旧组级 MCP 注册已移除", Some(&name));
                removed.push(name);
            }
        }
    }
    removed
}

// ── JSON 读写 ─────────────────────────────────────────────────────────────────

fn read_json(path: &PathBuf) -> Result<Value, String> {
    if !path.exists() {
        return Ok(json!({}));
    }
    let content =
        std::fs::read_to_string(path).map_err(|e| format!("读取 settings.json 失败: {}", e))?;
    if content.trim().is_empty() {
        return Ok(json!({}));
    }
    serde_json::from_str(&content).map_err(|e| {
        format!(
            "settings.json 格式错误，请手动修复后重试（{}）: {}",
            path.display(),
            e
        )
    })
}

fn write_json(path: &PathBuf, value: &Value) -> Result<(), String> {
    if let Some(parent) = path.parent() {
        std::fs::create_dir_all(parent).map_err(|e| format!("创建 .claude 目录失败: {}", e))?;
    }
    let content = serde_json::to_string_pretty(value).map_err(|e| e.to_string())?;
    std::fs::write(path, content).map_err(|e| format!("写入 settings.json 失败: {}", e))
}

fn upsert_codex_mcp_config(
    path: &PathBuf,
    server_url: &str,
    header_helper: &str,
) -> Result<(), String> {
    let helper_literal = serde_json::to_string(header_helper)
        .map_err(|_| "MCP helper 配置序列化失败".to_string())?;
    let block = format!(
        "{CODEX_MCP_MANAGED_START}\n[mcp_servers.{MCP_KEY}]\nurl = \"{server_url}\"\nhttp_headers_helper = {helper_literal}\n{CODEX_MCP_MANAGED_END}\n"
    );
    let current = match std::fs::read_to_string(path) {
        Ok(value) => value,
        Err(error) if error.kind() == std::io::ErrorKind::NotFound => String::new(),
        Err(error) => return Err(format!("读取 Codex config.toml 失败: {error}")),
    };
    let (start, end) = (
        current.find(CODEX_MCP_MANAGED_START),
        current.find(CODEX_MCP_MANAGED_END),
    );
    let next = match (start, end) {
        (Some(start), Some(end)) if end >= start => format!(
            "{}{}{}",
            &current[..start],
            block,
            &current[end + CODEX_MCP_MANAGED_END.len()..]
        ),
        (Some(_), _) | (_, Some(_)) => {
            return Err(format!(
                "{} 的炼境 Codex 管理块不完整或顺序错误，请修复标记后重试",
                path.display()
            ))
        }
        (None, None)
            if current
                .lines()
                .any(|line| line.trim() == format!("[mcp_servers.{MCP_KEY}]")) =>
        {
            return Err(format!(
                "{} 已手工定义 [mcp_servers.{MCP_KEY}]，炼境不会覆盖",
                path.display()
            ));
        }
        (None, None) if current.trim().is_empty() => block,
        (None, None) => format!("{}\n{}", current.trim_end(), block),
    };

    if let Some(parent) = path.parent() {
        std::fs::create_dir_all(parent)
            .map_err(|error| format!("创建 .codex 目录失败: {error}"))?;
    }
    std::fs::write(path, next).map_err(|error| format!("写入 Codex config.toml 失败: {error}"))
}

fn remove_codex_mcp_config(path: &PathBuf) -> Result<(), String> {
    let current = match std::fs::read_to_string(path) {
        Ok(value) => value,
        Err(error) if error.kind() == std::io::ErrorKind::NotFound => return Ok(()),
        Err(error) => return Err(format!("读取 Codex config.toml 失败: {error}")),
    };
    let (Some(start), Some(end)) = (
        current.find(CODEX_MCP_MANAGED_START),
        current.find(CODEX_MCP_MANAGED_END),
    ) else {
        return Ok(());
    };
    if end < start {
        return Err(format!("{} 的炼境 Codex 管理块不完整", path.display()));
    }

    let next = format!(
        "{}{}",
        &current[..start],
        &current[end + CODEX_MCP_MANAGED_END.len()..]
    )
    .trim_matches(['\r', '\n'])
    .to_string();
    let output = if next.is_empty() {
        String::new()
    } else {
        format!("{next}\n")
    };
    std::fs::write(path, output).map_err(|error| format!("移除 Codex MCP 配置失败: {error}"))
}

// ── 公开接口 ──────────────────────────────────────────────────────────────────

/// 向项目的 .claude/settings.json 注入单一 lian-jing MCP 配置，
/// 并清理旧组级 key（迁移内建于重注入）
pub fn inject_project_mcp(project_id: &str) -> Result<(), String> {
    let port = crate::mcp_server::read_port();
    let server_url = crate::mcp_server::scoped_mcp_url(port, project_id);
    let digest = crate::credential_store::mcp_auth_digest(project_id)?;
    crate::credential_store::get_or_create_mcp_auth_token(
        &crate::credential_store::WindowsCredentialStore,
        project_id,
    )?;
    let executable = std::env::current_exe()
        .map_err(|_| "无法定位炼境可执行文件，拒绝写入 MCP 认证配置".to_string())?;
    let header_helper = format!(
        "\"{}\" --lianjing-mcp-header {digest}",
        executable.display()
    );
    write_canonical_context(project_id)?;
    upsert_codex_mcp_config(&codex_config_path(project_id)?, &server_url, &header_helper)?;
    let path = settings_path(project_id)?;
    let mut settings = read_json(&path)?;

    let obj = settings
        .as_object_mut()
        .ok_or("settings.json 顶层必须是 JSON 对象")?;

    // 炼境管理的项目需要无人值守运行（/ship 等技能不应被 permission 弹窗打断）
    obj.entry("permissions")
        .or_insert(json!({"defaultMode": "bypassPermissions"}));

    let servers = obj.entry("mcpServers").or_insert(json!({}));

    if let Some(map) = servers.as_object_mut() {
        map.retain(|k, _| !k.starts_with(LEGACY_KEY_PREFIX));
    }
    servers[MCP_KEY] = json!({
        "type": "sse",
        "url": server_url
    });

    write_json(&path, &settings).inspect(|_| {
        let ctx = serde_json::json!({"project_id": project_id}).to_string();
        log_event("mcp_inject", "info", "MCP 配置注入成功", Some(&ctx));
    })?;

    // 保留 Claude 历史上下文作为兼容投影；项目身份以 .lian-jing/context.json 为准。
    write_liangjing_context(project_id, port)?;

    // 同步注册到 ~/.claude.json，让 Claude Code 能加载 MCP 工具（best-effort）
    try_register_globally(port);
    Ok(())
}

/// 从项目的 .claude/settings.json 移除炼境 MCP 配置（含旧组级 key）。
/// 调用方需自行保证项目已不属于任何产品组时才调用。
pub fn remove_project_mcp(project_id: &str) -> Result<(), String> {
    remove_codex_mcp_config(&codex_config_path(project_id)?)?;
    let path = settings_path(project_id)?;
    if path.exists() {
        let mut settings = read_json(&path)?;
        if let Some(servers) = settings
            .get_mut("mcpServers")
            .and_then(|v| v.as_object_mut())
        {
            servers.remove(MCP_KEY);
            servers.retain(|k, _| !k.starts_with(LEGACY_KEY_PREFIX));
        }
        write_json(&path, &settings)?;
    }
    crate::credential_store::delete_mcp_auth_token_for_project(
        &crate::credential_store::WindowsCredentialStore,
        project_id,
    )
}

/// 单一服务器化一次性迁移：批量重注入所有托管项目（换新 key + 清旧 key + liangjing.json 瘦身）
/// 并清理旧组级全局注册。settings 表 mcp_single_migrated 标记位保证只执行一次；
/// 部分项目失败不阻塞（记日志，可对单个项目手动重注入补救）。
pub fn migrate_to_single_server() {
    let already: Option<String> = db::pool().get().ok().and_then(|c| {
        c.query_row(
            "SELECT value FROM settings WHERE key = 'mcp_single_migrated'",
            [],
            |r| r.get(0),
        )
        .ok()
    });
    if already.as_deref() == Some("1") {
        return;
    }

    let errors = reinject_all_mcp();
    let removed = cleanup_legacy_global_registrations();
    let register_ok = try_register_globally(crate::mcp_server::read_port());

    let summary = format!(
        "单一服务器迁移完成：重注入失败 {} 个，移除旧全局注册 {} 条，全局注册 {}{}",
        errors.len(),
        removed.len(),
        if register_ok { "成功" } else { "失败" },
        if errors.is_empty() {
            String::new()
        } else {
            format!("；失败详情: {}", errors.join("; "))
        }
    );
    let level = if errors.is_empty() && register_ok {
        "info"
    } else {
        "warn"
    };
    db::log_event("mcp_inject", level, &summary, None);

    // 全局注册失败说明 claude CLI 链路不通（CLI 缺失/git-bash 缺失/命令报错），
    // 此时旧注册也清不掉——不落标记位，等下次启动重试（整个流程幂等）
    if !register_ok {
        return;
    }
    if let Ok(conn) = db::pool().get() {
        let _ = conn.execute(
            "INSERT OR REPLACE INTO settings (key, value) VALUES ('mcp_single_migrated', '1')",
            [],
        );
    }
}

/// 端口变更后重新注入所有产品组成员的 MCP 配置
/// 返回注入失败的错误列表（部分失败不影响其他项目）
pub fn reinject_all_mcp() -> Vec<String> {
    let conn = match db::pool().get() {
        Ok(c) => c,
        Err(e) => return vec![e.to_string()],
    };

    let project_ids: Vec<String> = {
        let mut stmt = match conn.prepare("SELECT DISTINCT project_id FROM project_group_map") {
            Ok(s) => s,
            Err(e) => return vec![e.to_string()],
        };
        stmt.query_map([], |row| row.get(0))
            .map(|iter| iter.filter_map(|r| r.ok()).collect())
            .unwrap_or_default()
    };
    drop(conn);

    let mut errors = Vec::new();
    for project_id in project_ids {
        if let Err(e) = inject_project_mcp(&project_id) {
            errors.push(format!("项目 {}: {}", project_id, e));
        }
    }
    errors
}

#[cfg(test)]
mod tests {
    use super::*;

    /// 回归：空路径登记曾使 inject 链路把 settings.json/liangjing.json 写进
    /// 炼境进程 cwd（src-tauri/，2026-07-15 实锤，apply 链路同日已拦本处漏拦）。
    #[test]
    fn registered_path_rejects_empty_and_relative() {
        assert!(
            validate_registered_path("", "win_path").is_err(),
            "空串应拒绝"
        );
        assert!(
            validate_registered_path("   ", "win_path").is_err(),
            "空白应拒绝"
        );
        assert!(
            validate_registered_path("src-tauri", "win_path").is_err(),
            "相对路径应拒绝（相对炼境 cwd 解析）"
        );
    }

    #[test]
    fn codex_mcp_config_preserves_user_content_and_rejects_handwritten_conflict() {
        let base =
            std::env::temp_dir().join(format!("lianjing_codex_mcp_test_{}", std::process::id()));
        let _ = std::fs::remove_dir_all(&base);
        std::fs::create_dir_all(base.join(".codex")).unwrap();
        let path = base.join(".codex/config.toml");

        std::fs::write(&path, "model = \"gpt-6\"\n").unwrap();
        let helper = "\"C:/Lianjing.exe\" --lianjing-mcp-header qa-only-digest";
        upsert_codex_mcp_config(&path, "http://127.0.0.1:27190/mcp", helper).unwrap();
        let configured = std::fs::read_to_string(&path).unwrap();
        assert!(configured.contains("model = \"gpt-6\""));
        assert!(configured.contains("[mcp_servers.lian-jing]"));
        assert!(configured.contains("url = \"http://127.0.0.1:27190/mcp\""));
        assert!(configured.contains("http_headers_helper"));
        assert!(!configured.contains("qa-only-synthetic-mcp-token"));

        upsert_codex_mcp_config(
            &path,
            "http://127.0.0.1:27190/mcp/projects/project%20one",
            helper,
        )
        .unwrap();
        let migrated = std::fs::read_to_string(&path).unwrap();
        assert!(migrated.contains("model = \"gpt-6\""));
        assert!(migrated.contains("url = \"http://127.0.0.1:27190/mcp/projects/project%20one\""));
        assert!(!migrated.contains("url = \"http://127.0.0.1:27190/mcp\"\n"));

        remove_codex_mcp_config(&path).unwrap();
        assert_eq!(
            std::fs::read_to_string(&path).unwrap(),
            "model = \"gpt-6\"\n"
        );

        let manual = "[mcp_servers.lian-jing]\nurl = \"http://manual/mcp\"\n";
        std::fs::write(&path, manual).unwrap();
        assert!(upsert_codex_mcp_config(
            &path,
            "http://127.0.0.1:27190/mcp/projects/project%20one",
            helper,
        )
        .is_err());
        assert_eq!(std::fs::read_to_string(&path).unwrap(), manual);
        let _ = std::fs::remove_dir_all(&base);
    }

    #[test]
    fn canonical_context_migrates_legacy_project_id_and_preserves_unknown_fields() {
        let base = std::env::temp_dir().join(format!(
            "lianjing_canonical_context_test_{}",
            std::process::id()
        ));
        let _ = std::fs::remove_dir_all(&base);
        std::fs::create_dir_all(base.join(".claude")).unwrap();
        std::fs::write(
            base.join(".claude/liangjing.json"),
            r#"{"project_id":"legacy-project","mcp_port":27190}"#,
        )
        .unwrap();
        std::fs::create_dir_all(base.join(".lian-jing")).unwrap();
        std::fs::write(
            base.join(".lian-jing/context.json"),
            r#"{"project_setting":"preserve-me"}"#,
        )
        .unwrap();

        write_canonical_context_at(&base, "legacy-project").unwrap();
        let context: Value = serde_json::from_str(
            &std::fs::read_to_string(base.join(".lian-jing/context.json")).unwrap(),
        )
        .unwrap();
        assert_eq!(context["schema_version"], CONTEXT_SCHEMA_VERSION);
        assert_eq!(context["project_id"], "legacy-project");
        assert_eq!(context["project_setting"], "preserve-me");
        assert!(
            !context.as_object().unwrap().contains_key("mcp_port"),
            "运行时端口不应进入工具无关的 canonical context"
        );

        let _ = std::fs::remove_dir_all(&base);
    }

    #[test]
    fn registered_path_accepts_absolute_and_unc() {
        assert!(validate_registered_path("E:\\code-project\\demo", "win_path").is_ok());
        assert!(validate_registered_path("E:/code-project/demo", "win_path").is_ok());
        assert!(
            validate_registered_path("\\\\wsl.localhost\\Ubuntu\\home\\u\\p", "win_path").is_ok(),
            "WSL UNC 路径应通过"
        );
    }
}