#!/usr/bin/env bash
VERSION="1.0.0"

retry() {
	err "$*"
	prompt
}

# display error message and exit
die() {
	((!SILENT)) && printf "\033[1;31m%s\033[0m\n" "$*" >&2
	exit 1
}

# display an error message to stderr (in red)
err() {
	((!SILENT)) && printf "\33[2K\r\033[1;31m%s\033[0m\n" "$*" >&2
}

# display a log message if verbose mode is enabled
lg() {
	((VERBOSE)) && printf "\033[1;35m%s\033[0m\n" "$*" >&2
}

# display an informational message (first argument in green, second in magenta)
inf() {
	printf "\33[2K\r\033[1;35m%s \033[1;35m%s\033[0m\n" "$1" "$2"
}

progress() {
	((!SILENT)) && printf "\33[2K\r\033[1;34m%s\033[0m\n" "$1" >&2
}

# prompts the user with message in $1-2 ($1 in blue, $2 in magenta) and saves the input to the variables in $REPLY and $REPLY2
prompt() {
	printf "\033[1;35m%s\033[1;35m%s\033[1;34m\033[0m: " "$1" "$2"
}

# displays an even (cyan) line of a menu line with $2 as an indicator in [] and $1 as the option
menu_line_even() {
	printf "\033[1;36m(\033[1;36m%s\033[1;36m) \033[1;36m%s\033[0m\n" "$2" "$1"
}

# displays an odd (yellow) line of a menu line with $2 as an indicator in [] and $1 as the option
menu_line_odd() {
	printf "\033[1;33m(\033[1;33m%s\033[1;33m) \033[1;33m%s\033[0m\n" "$2" "$1"
}

# display alternating menu lines (even and odd)
menu_line_alternate() {
	menu_line_parity=${menu_line_parity:-0}
	if [ "$menu_line_parity" -eq 0 ]; then
		menu_line_odd "$1" "$2"
		menu_line_parity=1
	else
		menu_line_even "$1" "$2"
		menu_line_parity=0
	fi
}

# displays a warning (red) line of a menu line with $2 as an indicator in [] and $1 as the option
menu_line_strong() {
	printf "\033[1;34m[\033[1;33m%s\033[1;34m] \033[1;33m%s\033[0m\n" "$2" "$1"
}

# Select anime from query results
anime_selection() {
	search_results=$*
	count=1
	while read -r anime_id; do
		anime_id=$(printf "%s" "$anime_id" | sed -E 's/\-episode\-.*//')
		menu_line_alternate "$anime_id" "$count"
		: count=$((count += 1))
	done <<< "$search_results"
	prompt "Enter choice"
	read -r choice

	# Check if input is a number
	[[ "$choice" -eq "$choice" ]] 2> /dev/null || die "Invalid number entered"

	count=1
	while read -r anime_id; do
		if [[ "$count" -eq "$choice" ]]; then
			anime_id=$(printf "%s" "$anime_id" | sed -E 's/\-episode\-.*//')
			selection_id=$anime_id
			break
		fi
		count=$((count + 1))
	done <<< "$search_results"

	[[ -z "$selection_id" ]] && die "Invalid number entered"
	insert_history "search" "$selection_id" &
	lg "Selection: $selection_id"
	progress "(Gogoanime) Searching Episodes.."
	episode_list "$selection_id"
	al_episode_list
	return 0
}

# select episode from query results
episode_selection() {
	ep_choice_start=1
	if [ -n "$LAST_EP_NUMBER" ]; then
		[[ "$is_download" -eq 1 ]] &&
			inf "Range of episodes can be specified:" "start_number end_number"
		inf "Anime:" "$anime_id"
		prompt "Choose episode " "[$FIRST_EP_NUMBER-$LAST_EP_NUMBER]"
		read -r ep_choice_start ep_choice_end
		[[ -z "$ep_choice_end" ]] && ep_choice_end="$ep_choice_start"
	fi
	if (((ep_choice_start < 0 || ep_choice_start > LAST_EP_NUMBER) || ep_choice_end < ep_choice_start || ep_choice_end > LAST_EP_NUMBER)); then
		die "Invalid episode/range entered: ep_start -> $ep_choice_start | ep_end -> $ep_choice_end"
	fi
}

continue_watching() {
	inf "Continue watching $selection_id?"
	prompt "Next episode -> $((episode + 1)) [Y/n]"
	read -r choice
	[ -z "$choice" ] && choice="y"
	[[ "$choice" =~ ^(y|Y|Yes)$ ]] && return 0 || return 1
}

# get the search query from user or from args
get_search_query() {
	if [ $# -gt 0 ]; then
		query="${*// /-}"
	else
		prompt "Search Anime"
		read -r query
		query="${query// /-}"
	fi
}

get_dl_dir() {
	prompt "Enter download directory"
	read -r download_dir
	lg "Download dir: $download_dir"
	[ -z "$download_dir" ] && download_dir="$HOME/Videos/sauce/"
	if [ ! -d "$download_dir" ]; then
		mkdir -p "$download_dir" || die "Error creating directory: $download_dir"
	fi
}

# sets the video quality
set_video_quality() {
	((IS_MP4)) && qualities="best|1080p|720p|480p|360p|worst" || qualities="best|worst"
	prompt "Choose quality [$qualities]"
	read -r quality
	while [[ ! "$quality" =~ ($qualities) ]]; do
		lg "$quality not a valid quality"
		prompt "Choose quality [$qualities]"
		read -r quality
	done
	[ -z "$quality" ] && die "No quality selected"
}

# vim :ft=sh