// Copyright (c) 2026 Storm Dragon
// Authors: Storm Dragon, Angus Kola
// SPDX-License-Identifier: GPL-3.0-or-later

package preferences

/*
#include <stdlib.h>
#include "native.h"
*/
import "C"

import (
	"errors"
	"time"
	"unsafe"

	"git.stormux.org/storm/cthulhu/internal/datetime"
	"git.stormux.org/storm/cthulhu/internal/input"
)

func setFormatCombo(name string, options []datetime.Option, value string) {
	id := C.CString(name)
	defer C.free(unsafe.Pointer(id))
	C.prefs_combo_clear(id)
	for _, option := range options {
		text := C.CString(option.Label)
		C.prefs_combo_append(id, text)
		C.free(unsafe.Pointer(text))
	}
	C.prefs_combo_set(id, C.int(formatIndex(options, value)))
}

func formatIndex(options []datetime.Option, value string) int {
	for index, option := range options {
		if option.Value == value {
			return index
		}
	}
	return 0
}

func (session *uiSession) set_general_values(values Values) {
	session.progressBar = values.ProgressBar
	session.setKeyBindings(values)
	setCombo("progressBarOutputCombo", map[string]int{"off": 0, "beep": 1, "speak": 2, "both": 3}[values.ProgressBar.OutputMode])
	setCheck("reportBackgroundProgressBarsCheckButton", values.ProgressBar.ReportBackground)
	now := time.Now()
	setFormatCombo("timeFormatCombo", datetime.TimeOptions(now), values.TimeFormat)
	setFormatCombo("dateFormatCombo", datetime.DateOptions(now), values.DateFormat)
}

func (session *uiSession) get_general_values(values *Values) error {
	values.KeyBindings = input.CloneBindingOverrides(session.bindingDraft)
	values.KeyboardLayout = 1
	if getCheck("generalLaptopButton") {
		values.KeyboardLayout = 2
	}
	values.CthulhuModifierKeys = getModifierKeys()
	ti, di := getCombo("timeFormatCombo"), getCombo("dateFormatCombo")
	now := time.Now()
	timeOptions := datetime.TimeOptions(now)
	dateOptions := datetime.DateOptions(now)
	if ti < 0 || ti >= len(timeOptions) || di < 0 || di >= len(dateOptions) {
		return errors.New("Choose a time and date format.")
	}
	mode := getCombo("progressBarOutputCombo")
	if mode < 0 || mode > 3 {
		return errors.New("Choose a progress bar output mode.")
	}
	// Percentage intervals are configured in TOML, so retain them when the
	// visible mode and background controls are applied or previewed.
	values.ProgressBar = session.progressBar
	values.ProgressBar.OutputMode = []string{"off", "beep", "speak", "both"}[mode]
	values.ProgressBar.ReportBackground = getCheck("reportBackgroundProgressBarsCheckButton")
	values.TimeFormat = timeOptions[ti].Value
	values.DateFormat = dateOptions[di].Value
	return nil
}