#!/usr/bin/env bash
# tsplay installer — builds the terminal Jellyfin player from source and drops
# the binary in ~/.local/bin. On Arch/Omarchy it installs the dependencies it
# needs (mpv at run-time, go at build-time) via pacman; on other distros it
# falls back to telling you what to install.
set -euo pipefail

REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
BIN_DIR="${HOME}/.local/bin"
BIN="${BIN_DIR}/tsplay"

bold() { printf '\033[1m%s\033[0m\n' "$1"; }
warn() { printf '\033[33m%s\033[0m\n' "$1" >&2; }
err()  { printf '\033[31m%s\033[0m\n' "$1" >&2; }

# pkg_for maps a required command to its Arch package name (same here, but kept
# explicit so it's obvious what gets installed).
pkg_for() {
  case "$1" in
    go)  echo "go"  ;;
    mpv) echo "mpv" ;;
    *)   echo "$1"  ;;
  esac
}

# ensure_dep makes sure a command exists, installing it via pacman on Arch if
# missing. $2 = "build" or "run" just tweaks the wording.
ensure_dep() {
  local cmd="$1" kind="$2" pkg
  command -v "$cmd" >/dev/null 2>&1 && return 0
  pkg="$(pkg_for "$cmd")"
  if command -v pacman >/dev/null 2>&1; then
    bold "Installing missing ${kind} dependency: ${pkg}"
    sudo pacman -S --needed --noconfirm "$pkg"
  else
    err "Missing ${kind} dependency '${cmd}'. Install the '${pkg}' package and re-run."
    exit 1
  fi
}

# Build-time and run-time deps. mpv is the only thing tsplay needs at run time;
# everything else is compiled into the Go binary.
ensure_dep go  build
ensure_dep mpv run

bold "Building tsplay…"
cd "$REPO_DIR"
mkdir -p "$BIN_DIR"
go build -o "$BIN" ./cmd/tsplay

bold "Installed: $BIN"
case ":$PATH:" in
  *":$BIN_DIR:"*) ;;
  *) warn "Note: $BIN_DIR is not on your PATH. Add it to use 'tsplay' directly." ;;
esac
echo "Run 'tsplay' to sign in to your Jellyfin server (it auto-detects LAN servers)."