#include <iostream>
#include <string>

#include "httplib.h"
#include "WebForms.h"

using namespace std;
using namespace WebFormsCore;

string backEndRender(const string& viewName) {
    if (viewName == "view") {
        return R"(<!DOCTYPE html>
<html>
<head>
  <title>Using WebForms Core</title>
  <script type="module" src="/script/web-forms.js"></script>
</head>
<body>
    <form method="post" action="/">

        <label for="txt_Name">Your Name</label>
        <input name="txt_Name" id="txt_Name" type="text" />
        <br>
        <label for="txt_FontSize">Set Font Size</label>
        <input name="txt_FontSize" id="txt_FontSize" type="number" value="16" min="10" max="36" />
        <br>
        <label for="txt_BackgroundColor">Set Background Color</label>
        <input name="txt_BackgroundColor" id="txt_BackgroundColor" type="text" />
        <br>
        <input name="btn_SetBodyValue" type="submit" value="Click to send data" />

    </form>
</body>
</html>)";
    }
    return "<h1>View not found</h1>";
}

int main() {
    httplib::Server svr;

    svr.set_mount_point("/script", "./script");

    svr.Post("/", [](const httplib::Request& req, httplib::Response& res) {
        if (req.has_param("btn_SetBodyValue")) {
            int fontSize = std::stoi(req.get_param_value("txt_FontSize"));
            std::string backgroundColor = req.get_param_value("txt_BackgroundColor");
            std::string name = req.get_param_value("txt_Name");

            WebForms form;
            form.SetFontSize(InputPlace::Tag("form"), fontSize);
            form.SetBackgroundColor(InputPlace::Tag("form"), backgroundColor);
            form.SetDisabled(InputPlace::Tag("btn_SetBodyValue"), true);

            form.AddTag(InputPlace::Tag("form"), "h3");
            form.SetText(InputPlace::Tag("h3"), "Welcome " + name + "!");

            res.set_content(form.Response(), "text/plain");
        } else {
            res.set_content(backEndRender("view"), "text/html");
        }
    });

    svr.Get("/", [](const httplib::Request&, httplib::Response& res) {
        res.set_content(backEndRender("view"), "text/html");
    });

    std::cout << "========================================\n";
    std::cout << "WebForms Core C++ Test Server\n";
    std::cout << "========================================\n";
    std::cout << "sizeof(void*) = " << sizeof(void*) << " bytes\n";
    std::cout << "Server running on http://127.0.0.1:8080\n";
    std::cout << "Open browser and visit:\n";
    std::cout << "  http://127.0.0.1:8080/\n";
    std::cout << "Press Ctrl+C to stop\n";
    std::cout << "========================================\n";

    svr.listen("127.0.0.1", 8080);
    return 0;
}