#!/usr/bin/env bash

set -Eeo pipefail

#############
#  Globals  #
#############
CMD="/usr/bin/ani-cli"
CFG_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/aniwrapper"
CFG_FILE="$CFG_DIR/themes/aniwrapper.rasi"
DEFAULT_DOWNLOAD="$HOME/Videos/sauce"
ROFI_THEME="aniwrapper.rasi"
THEMES="aniwrapper (default)|dracula|doomone|fancy|flamingo|material|nord|onedark"
QUALITIES="1. best (default)|2. 1080p|3. 720p|4. 360p|5. worst"
QUALITY=best
DPI=96
GET_QUALITY=0
IS_CUSTOM_THEME=0
IS_DOWNLOAD=0
IS_PLAY_FROM_FILE=0
IS_ROFI=1
VERBOSE=0
SILENT=0

quit="6. Quit"
options="1. Stream|2. Download|3. Continue|4. Play from File|5. Sync History|$quit"
theme=default

#############
# Functions #
#############
help_text() {
	while IFS= read -r line; do
		printf "%s\n" "$line"
	done <<< "
Usage:
    aniwrapper [-cdhvqS] [-t <theme> or -T <config_path>]
    aniwrapper [-cvS] [-t <theme> or -T <config_path>] -f <path_to_directory>
    aniwrapper -Q <query>
    aniwrapper -C
Options:
     -h  show this help text
     -q  enable quality selection
     -c  enable command-line mode (rofi disabled)
     -d  download episode in command-line mode
     -C  connect to history database
	 -S  silent mode (suppress output to stdout) [cannot be used with -v]

     -t  <aniwrapper (default)|dracula|doomone|fancy|flamingo|material|onedark> change rofi theme
     -T  <config_path> specify custom rofi theme
     -f  <path_to_directory> (no trailing slash) specify starting directory for play for file mode
     -Q  <query> query the history database
	"
}

lg() {
	if ((VERBOSE == 1)); then
		printf "%s\n" "$*"
	fi
}

seppuku() {
	printf "%s\n" "$*"
	exit 1
}

quit() {
	lg 'Quitting...'
	exit 0
}

run() {
	if ((IS_PLAY_FROM_FILE == 0 && GET_QUALITY == 1)); then
		get_quality
	fi

	if ((SILENT == 1)); then
		if ((IS_CUSTOM_THEME == 0)); then
			"$CMD" -D"$DPI" -Sq "$QUALITY" -t "$theme" "$@"
		else
			"$CMD" -D"$DPI" -Sq "$QUALITY" -T "$CFG_FILE" "$@"
		fi
	elif ((VERBOSE == 1)); then
		if ((IS_CUSTOM_THEME == 0)); then
			"$CMD" -D"$DPI" -vq "$QUALITY" -t "$theme" "$@"
		else
			"$CMD" -D"$DPI" -vq "$QUALITY" -T "$CFG_FILE" "$@"
		fi
	else
		if ((IS_CUSTOM_THEME == 0)); then
			"$CMD" -D"$DPI" -q "$QUALITY" -t "$theme" "$@"
		else
			"$CMD" -D"$DPI" -q "$QUALITY" -T "$CFG_FILE" "$@"
		fi
	fi
}

get_quality() {
	if ((IS_ROFI == 1)); then
		selection=$(rofi -dpi "$DPI" -dmenu -config "$CFG_FILE" \
			-l 5 -selected-row 0 \
			-theme-str 'listview {columns: 1;}' -p "Choose video quality:" \
			-sep '|' -only-match <<< "$QUALITIES")
		QUALITY=$(awk '{print $2}' <<< "$selection")
	else
		printf "%s" "Enter quality [$QUALITIES]: "
		read -r QUALITY
	fi
	lg "selected quality: $QUALITY"
}

# generates a span mesg for rofi given
# input: message: str
generate_span() {
	msg="$*"
	span="<span foreground='#ecbe7b' style='italic' size='small'>$msg</span>"
	printf "%s\n" "$span"
}

parse_args() {
	while getopts 'vhqcdf:-:t:T:CQ:D:S' OPT; do
		case "$OPT" in
			h)
				help_text
				exit 0
				;;
			v)
				VERBOSE=1
				;;
			q)
				GET_QUALITY=1
				lg "Quality prompt enabled"
				;;
			c)
				IS_ROFI=0
				lg "Command-line (ani-cli) mode set"
				;;
			d)
				IS_DOWNLOAD=1
				lg "Download flag set..."
				;;
			f)
				IS_PLAY_FROM_FILE=1
				play_path="$OPTARG"
				lg "Play from file flag set... skipping main menu"
				lg "PLAY_PATH: $play_path"
				;;
			t)
				theme="$OPTARG"
				lg "custom theme provided: $theme"
				case "$theme" in
					aniwrapper)
						lg "Default theme chosen... doing nothing"
						theme=default
						;;
					dracula)
						ROFI_THEME=aniwrapper-dracula.rasi
						;;
					doomone | doom-one)
						ROFI_THEME=aniwrapper-doomone.rasi
						;;
					fancy)
						ROFI_THEME=aniwrapper-fancy.rasi
						;;
					flamingo)
						ROFI_THEME=aniwrapper-flamingo.rasi
						;;
					material)
						ROFI_THEME=aniwrapper-material.rasi
						;;
					nord)
						ROFI_THEME=aniwrapper-nord.rasi
						;;
					onedark)
						ROFI_THEME=aniwrapper-onedark.rasi
						;;
					*)
						seppuku "$theme not a valid theme file.  Themes: [$THEMES]"
						;;
				esac
				CFG_FILE="$CFG_DIR/themes/$ROFI_THEME"
				;;
			C)
				lg "Connecting to history database -> $CFG_DIR/history.sqlite3"
				sqlite3 "$CFG_DIR/history.sqlite3"
				exit $?
				;;
			Q)
				query="$OPTARG"
				lg "DATABASE QUERY: $query"
				sqlite3 -line "$CFG_DIR/history.sqlite3" "$query"
				exit $?
				;;
			T)
				CFG_FILE="$OPTARG"
				[ ! -f "$CFG_FILE" ] && seppuku "config file $CFG_FILE does not exist"
				IS_CUSTOM_THEME=1
				;;
			D)
				DPI="$OPTARG"
				;;
			S)
				SILENT=1
				;;
			*)
				help_text
				exit 1
				;;
		esac
	done

}

check_flags() {
	# Check if command-line flag is set
	if ((VERBOSE == 1 && SILENT == 1)); then
		seppuku "verbose and silent options cannot be used together"
	fi
	if ((IS_ROFI == 0 && IS_DOWNLOAD == 0)); then
		run -c
		exit $?
	elif ((IS_ROFI == 0 && IS_DOWNLOAD == 1)); then
		printf "%s" "Enter download dir: "
		read -r dl_dir
		lg "Download dir: $dl_dir"
		if [ ! -d "$dl_dir" ]; then
			mkdir -p "$dl_dir" || seppuku "Error creating directory: $dl_dir"
		fi
		run "-cd $dl_dir"
		exit $?
	elif ((IS_ROFI == 1 && IS_PLAY_FROM_FILE == 1 && IS_CUSTOM_THEME == 1)); then
		run "-f$play_path" -T "$CFG_FILE"
		exit $?
	elif ((IS_ROFI == 1 && IS_PLAY_FROM_FILE == 1 && IS_CUSTOM_THEME == 0)); then
		run "-f$play_path" -t "$theme"
		exit $?
	fi
}

########
# Main #
########
main() {
	choice=$(echo "${options[@]}" | rofi -dpi "$DPI" -dmenu -only-match -sep '|' \
		-config "$CFG_FILE" -l 6 -i -p "Aniwrapper")

	[ "$choice" == "$quit" ] && quit

	selection=$(printf "%s\n" "$choice" | awk '{ print $1 }')

	case "$selection" in
		1.)
			# ---------------------------------------------------------------------------
			# streaming
			# ---------------------------------------------------------------------------
			lg "Streaming mode"
			run
			;;
		2.)
			# ---------------------------------------------------------------------------
			# download
			# ---------------------------------------------------------------------------
			lg "Download anime"
			dl_dir=$(
				rofi -dpi "$DPI" -dmenu -config "$CFG_FILE" \
					-mesg "$(generate_span "Enter the path to the download directory, or leave blank to go with the default: $HOME/Videos/sauce/")" \
					-l 1 -p "Enter download dir:"
			)
			# if dl_dir is none set to current directory
			[ "$dl_dir" == "" ] && dl_dir="$DEFAULT_DOWNLOAD"
			run -d "$dl_dir"
			;;
		3.)

			# ---------------------------------------------------------------------------
			# continue
			# ---------------------------------------------------------------------------
			lg "Continue watching"
			run -H
			;;
		4.)
			# ---------------------------------------------------------------------------
			# play
			# ---------------------------------------------------------------------------
			lg "Play from file selected"
			IS_PLAY_FROM_FILE=1
			span=$(printf '%s\n%s\n' "$(generate_span "Provide a valid path to a directory or leave blank to go with the default: $HOME/Videos/sauce/")" "$(generate_span "The program will begin searching for media files from the supplied directory")")
			play_dir=$(rofi -dpi "$DPI" -dmenu -config "$CFG_FILE" \
				-l 1 -mesg "$span" -p "Enter path to starting directory:")
			if [ -z "$play_dir" ]; then
				mkdir -p "$DEFAULT_DOWNLOAD" || seppuku "error creating default download directory"
				run -f"$DEFAULT_DOWNLOAD"
			else
				run -f"$play_dir"
			fi
			exit $?
			;;
		5.)
			lg "Sync history database"
			roficmd="rofi -dpi $DPI -dmenu -config $CFG_FILE -l 0 -p"
			username=$($roficmd "Enter the username of the remote user:")
			[ -z "$username" ] && seppuku "No username provided... exiting"
			host=$($roficmd "Enter the host for the remote machine (eg 192.168.1.99):")
			[ -z "$host" ] && seppuku "No host provided... exiting"
			port=$($roficmd "Enter in the ssh port for remote machine or leave blank for default [22]:")
			[ -z "$port" ] && port=22
			keypath=$($roficmd "Enter path to private key (leave blank if not needed or if unsure):")
			if ! printf "%s\n%s\n%d\n%s\n" "$username" "$host" "$port" "$keypath" | run -s; then
				lg "Aniwrapper was unable to sync the databases..."
				exit 1
			else
				lg "Databases synced successfully"
				quit
			fi
			;;
		6.)
			# ---------------------------------------------------------------------------
			# get out
			# ---------------------------------------------------------------------------
			quit
			;;
		*)
			help_text
			;;
	esac
}

parse_args "$@"
lg "CONFIG DIR: $CFG_DIR"
lg "ROFI CFG: $CFG_FILE"
check_flags
main