-- restore.lua (robust version)
local sh_path = "/var/mobile/restore.sh"
-- local param = "kaorjix2"

function ext_restore_func(param)
    os.execute("rm -rf /tmp/account_restore.lock");
    local function q(s) return string.format("%q", tostring(s)) end
    
    -- safe UI: try alert, then toast, then print
    local function safe_show(title, msg)
        -- try alert
        if type(alert) == "function" then
            local ok, _ = pcall(alert, title or "提示", msg or "")
            if ok then return end
        end
        -- try toast
        if type(toast) == "function" then
            local ok, _ = pcall(toast, msg or "")
            if ok then return end
        end
        -- fallback to print
        print((title and (title .. ": ") or "") .. tostring(msg or ""))
    end
    
    -- try io.popen
    local function popen_exec(cmd)
        if type(io) ~= "table" or type(io.popen) ~= "function" then
            return nil, "io.popen not available"
        end
        local fh, err = io.popen(cmd)
        if not fh then return nil, err end
        local out = fh:read("*a")
        local ok, cerr = pcall(function() fh:close() end)
        return out, (ok and nil) or tostring(cerr)
    end
    
    -- fallback using temp file + os.execute
    local function file_exec(cmd)
        local tmp = "/var/tmp/bak_exec_out.txt"
        local full = cmd .. " > " .. tmp .. " 2>&1"
        local res = os.execute(full)
        local content = nil
        local f = io.open(tmp, "r")
        if f then
            content = f:read("*a")
            f:close()
            -- 可选：删除临时文件，如果你想保留可注释下一行
            -- os.remove(tmp)
        end
        return content, res
    end
    
    -- 构造命令并执行
    local cmd = string.format("cd /var/root/ &&/bin/sh %s %s", sh_path, q(param))
    
    -- debug: 可取消注释查看最终命令
    -- safe_show("DEBUG CMD", cmd)
    
    local output, err = popen_exec(cmd)
    if output == nil then
        output, err = file_exec(cmd)
    end
    
    -- 显示结果
    if output and #output > 0 then
        -- 如果 output 很长，可考虑截断或分页显示；这里直接显示全部
        safe_show("脚本输出", output)
    else
        -- 如果既没有输出，又返回了错误信息，显示错误
        if err then
            safe_show("执行信息", "脚本无标准输出，执行返回: " .. tostring(err))
        else
            safe_show(nil, "脚本执行完毕，无输出")
        end
    end
end