local socket = require("socket")

local host = "localhost"
local port = 8080
local server = assert(socket.bind(host, port))
print("Server started on http://" .. host .. ":" .. port .. "/hello?name=YourName")

-- Helper function to extract query parameters
local function get_query_param(url, key)
    local pattern = key .. "=([^&]+)"
    return url:match(pattern)
end

while true do
    local client = server:accept()
    client:settimeout(10)

    local line, err = client:receive()
    if not err then
        -- Extract method and URI (e.g., "GET /hello?name=Raycast HTTP/1.1")
        local method, uri = line:match("^(%a+)%s+(%S+)%s+HTTP")

        local response_body = ""
        local status = "404 Not Found"

        -- Basic Routing: Check if path starts with /hello
        if uri and uri:find("^/hello") then
            status = "200 OK"
            -- Extract 'name' param or default to 'User'
            local name = get_query_param(uri, "name") or "User"
            -- URL decoding for spaces (%20)
            name = name:gsub("%%20", " ")
            response_body = "Hello " .. name .. "!"
        else
            response_body = "Not Found"
        end

        local response = "HTTP/1.1 " .. status .. "\r\n" ..
            "Content-Type: text/plain\r\n" ..
            "Content-Length: " .. #response_body .. "\r\n" ..
            "Connection: close\r\n\r\n" ..
            response_body

        client:send(response)
    end
    client:close()
end