#include <config.h>
#include <view.h>
#include <dialogs_formaction.h>
#include <listformatter.h>
#include <formatstring.h>
#include <utils.h>
#include <strprintf.h>

#include <cstdio>

namespace newsbeuter {

dialogs_formaction::dialogs_formaction(view * vv, std::string formstr) : formaction(vv, formstr), update_list(true) {
}

dialogs_formaction::~dialogs_formaction() {
}

void dialogs_formaction::init() {
	set_keymap_hints();

	unsigned int width = utils::to_u(f->get("dialogs:w"));
	std::string title_format = v->get_cfg()->get_configvalue("dialogs-title-format");
	fmtstr_formatter fmt;
	fmt.register_fmt('N', PROGRAM_NAME);
	fmt.register_fmt('V', PROGRAM_VERSION);
	f->set("head", fmt.do_format(title_format, width));
}

void dialogs_formaction::prepare() {
	if (update_list) {
		listformatter listfmt;

		unsigned int i = 1;
		for (auto fa : v->get_formaction_names()) {
			LOG(level::DEBUG, "dialogs_formaction::prepare: p1 = %p p2 = %p", v->get_formaction(fa.first).get(), get_parent_formaction().get());
			listfmt.add_line(strprintf::fmt("%4u %s %s", i, (v->get_formaction(fa.first).get() == get_parent_formaction().get()) ? "*" : " ", fa.second), fa.first);
			i++;
		}

		f->modify("dialogs", "replace_inner", listfmt.format_list());

		update_list = false;
	}
}

keymap_hint_entry * dialogs_formaction::get_keymap_hint() {
	static keymap_hint_entry hints[] = {
		{ OP_QUIT, _("Close") },
		{ OP_OPEN, _("Goto Dialog") },
		{ OP_CLOSEDIALOG, _("Close Dialog") },
		{ OP_NIL, nullptr }
	};
	return hints;
}

void dialogs_formaction::process_operation(operation op, bool /* automatic */, std::vector<std::string> * /* args */) {
	switch (op) {
	case OP_OPEN: {
		std::string dialogposname = f->get("dialogpos");
		if (dialogposname.length() > 0) {
			v->set_current_formaction(utils::to_u(dialogposname));
		} else {
			v->show_error(_("No item selected!"));
		}
	}
	break;
	case OP_CLOSEDIALOG: {
		std::string dialogposname = f->get("dialogpos");
		if (dialogposname.length() > 0) {
			unsigned int dialogpos = utils::to_u(dialogposname);
			if (dialogpos != 0) {
				v->remove_formaction(dialogpos);
				update_list = true;
			} else {
				v->show_error(_("Error: you can't remove the feed list!"));
			}
		} else {
			v->show_error(_("No item selected!"));
		}
	}
	break;
	case OP_QUIT:
		v->pop_current_formaction();
		break;
	default:
		break;
	}
}

std::string dialogs_formaction::title() {
	return ""; // will never be displayed
}

void dialogs_formaction::handle_cmdline(const std::string& cmd) {
	unsigned int idx = 0;
	if (1==sscanf(cmd.c_str(), "%u", &idx)) {
		if (idx <= v->formaction_stack_size()) {
			f->set("dialogpos", std::to_string(idx - 1));
		} else {
			v->show_error(_("Invalid position!"));
		}
	} else {
		formaction::handle_cmdline(cmd);
	}
}

}
