package uoscconf

import (
	"gitgud.io/mike/mpv-manager/internal/scriptopts"
)

// Value types for Option.ValueType.
const (
	TypeBool   = scriptopts.TypeBool
	TypeInt    = scriptopts.TypeInt
	TypeFloat  = scriptopts.TypeFloat
	TypeString = scriptopts.TypeString
	TypeChoice = scriptopts.TypeChoice
)

// Option describes a curated, editable uosc.conf option.
type Option = scriptopts.Option

// knownOptions is the curated set of editable uosc.conf options, based on
// the default uosc.conf shipped by uOSC 5.12.0 (and installed by mpv-manager).
// Bool options use the file's native yes/no values.
var knownOptions = []Option{
	{Key: "timeline_style", Default: "line", Description: "Display style of the current position indicator", ValueType: TypeChoice, Choices: []string{"line", "bar"}},
	{Key: "timeline_size", Default: "40", Description: "Timeline size when fully expanded, in pixels (0 to disable)", ValueType: TypeInt, Min: 0, Max: 200},
	{Key: "timeline_step", Default: "5", Description: "Seconds to seek when scrolling above the timeline (append '!' for exact seeks, e.g. '5!')", ValueType: TypeString},
	{Key: "timeline_cache", Default: "yes", Description: "Render cache indicators for streaming content", ValueType: TypeBool},
	{Key: "timeline_heatmap", Default: "overlay", Description: "Render a heatmap for YouTube videos", ValueType: TypeChoice, Choices: []string{"overlay", "above", "no"}},
	{Key: "progress", Default: "windowed", Description: "When to display an always visible progress bar (minimized timeline)", ValueType: TypeChoice, Choices: []string{"windowed", "fullscreen", "always", "never"}},
	{Key: "controls", Default: "menu,gap,<video,audio>subtitles,<has_many_audio>audio,<has_many_video>video,<has_many_edition>editions,<stream>stream-quality,gap,space,<video,audio>speed,space,shuffle,loop-playlist,loop-file,gap,prev,items,next,gap,fullscreen", Description: "Comma delimited layout of controls above the timeline ('never' to disable)", ValueType: TypeString},
	{Key: "controls_size", Default: "32", Description: "Size of the controls above the timeline, in pixels", ValueType: TypeInt, Min: 16, Max: 64},
	{Key: "volume", Default: "right", Description: "Where to display volume controls", ValueType: TypeChoice, Choices: []string{"none", "left", "right"}},
	{Key: "volume_size", Default: "40", Description: "Size of the volume slider, in pixels", ValueType: TypeInt, Min: 10, Max: 100},
	{Key: "speed_step", Default: "0.1", Description: "Playback speed change per wheel scroll or drag step", ValueType: TypeFloat, Min: 0.01, Max: 10.0},
	{Key: "speed_step_is_factor", Default: "no", Description: "Treat speed_step as a multiplication factor instead of an offset", ValueType: TypeBool},
	{Key: "menu_type_to_search", Default: "yes", Description: "Typing any text starts a menu search (no '/' or 'ctrl+f' needed)", ValueType: TypeBool},
	{Key: "top_bar", Default: "no-border", Description: "When to show the top bar with window controls and media title", ValueType: TypeChoice, Choices: []string{"never", "no-border", "always"}},
	{Key: "top_bar_size", Default: "40", Description: "Size of the top bar, in pixels", ValueType: TypeInt, Min: 20, Max: 80},
	{Key: "top_bar_controls", Default: "right", Description: "Where to place the window controls (min/max/close) on the top bar", ValueType: TypeChoice, Choices: []string{"no", "left", "right"}},
	{Key: "autoload", Default: "no", Description: "Load the next file in the directory when the playlist ends", ValueType: TypeBool},
	{Key: "shuffle", Default: "no", Description: "Enable uosc's playlist/directory shuffle mode", ValueType: TypeBool},
	{Key: "scale", Default: "1", Description: "Interface scale factor when windowed", ValueType: TypeFloat, Min: 0.1, Max: 5.0},
	{Key: "scale_fullscreen", Default: "1.3", Description: "Interface scale factor in fullscreen", ValueType: TypeFloat, Min: 0.1, Max: 5.0},
	{Key: "color", Default: "", Description: "Comma delimited color overrides in RGB HEX (e.g. 'foreground=ffffff,background=000000')", ValueType: TypeString},
	{Key: "opacity", Default: "", Description: "Comma delimited opacity overrides (e.g. 'timeline=0.9,thumbnail=1,curtain=0.8')", ValueType: TypeString},
	{Key: "chapter_ranges", Default: "openings:30abf964,endings:30abf964,ads:c54e4e80", Description: "Chapter range indicators as 'type:color' pairs (openings, endings, intros, outros, ads)", ValueType: TypeString},
	{Key: "autohide", Default: "no", Description: "Hide the UI when mpv autohides the cursor", ValueType: TypeBool},
}

// spec configures the shared script-opts machinery with the uOSC file name
// and the curated catalog.
var spec = &scriptopts.Spec{Name: confFileName, Options: knownOptions}

// KnownOptions returns the curated list of editable uosc.conf options.
func KnownOptions() []Option {
	options := make([]Option, len(knownOptions))
	for i, option := range knownOptions {
		options[i] = option
		options[i].Choices = append([]string(nil), option.Choices...)
	}
	return options
}

// ValidateValue checks value against the type and constraints of the known
// option key. Unknown keys and values containing newlines are rejected.
func ValidateValue(key, value string) error {
	return scriptopts.ValidateValue(spec, key, value)
}