#!/usr/bin/env bash
# bw-install.sh — Install the container-based Bitwarden CLI wrapper.
#
# Downloads the native Rust bw binary, builds the Docker image, and installs
# the host-side wrapper plus container entrypoint to the user's local paths.
# No Node.js is involved at any layer.
#
# Usage:
#   bw-install.sh                Download, build, and install everything
#   bw-install.sh --check        Verify installation status without changes
#
# Prerequisites:
#   - docker on PATH
#   - BW env file at ~/.config/bw/env (see prereq-check.sh in TSYSGroupAIOS)
#
# After install, ~/.local/bin/bw provides transparent CLI access. Add
# ~/.local/bin to PATH if not already (most distros do this via ~/.profile).

set -euo pipefail

HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_ROOT="$(cd "$HERE/.." && pwd)"

BW_VERSION="2026.7.0"
BW_IMAGE="reachableceo-bw-native:${BW_VERSION}"
BW_BINARY_URL="https://github.com/bitwarden/clients/releases/download/cli-v${BW_VERSION}/bw-linux-${BW_VERSION}.zip"

INSTALL_BIN="${HOME}/.local/bin"
INSTALL_LIB="${HOME}/.local/share/bw"
BUILD_DIR=""

# --- Helpers ---
log_info()  { printf '\033[0;34m›\033[0m %s\n' "$*"; }
log_ok()    { printf '\033[0;32m✓\033[0m %s\n' "$*"; }
log_warn()  { printf '\033[1;33m⚠\033[0m %s\n' "$*" >&2; }
log_error() { printf '\033[0;31m✗\033[0m %s\n' "$*" >&2; }
log_step()  { printf '\n\033[1m== %s ==\033[0m\n' "$*"; }
die()       { log_error "$*"; exit 1; }

# --- Cleanup on exit ---
cleanup() {
    [ -n "$BUILD_DIR" ] && rm -rf "$BUILD_DIR"
}
trap cleanup EXIT

# --- Check mode ---
if [ "${1:-}" = "--check" ]; then
    log_step "BW CLI installation check"
    if command -v docker >/dev/null 2>&1; then
        log_ok "docker on PATH"
    else
        log_error "docker not on PATH"
    fi
    if docker image inspect "$BW_IMAGE" >/dev/null 2>&1; then
        log_ok "Docker image ${BW_IMAGE} exists"
    else
        log_error "Docker image ${BW_IMAGE} missing"
    fi
    if [ -x "${INSTALL_BIN}/bw" ]; then
        log_ok "Host wrapper at ${INSTALL_BIN}/bw"
    else
        log_error "Host wrapper at ${INSTALL_BIN}/bw missing"
    fi
    if [ -f "${INSTALL_LIB}/entrypoint.sh" ]; then
        log_ok "Entrypoint at ${INSTALL_LIB}/entrypoint.sh"
    else
        log_error "Entrypoint at ${INSTALL_LIB}/entrypoint.sh missing"
    fi
    exit 0
fi

# --- Prerequisites ---
command -v docker >/dev/null 2>&1 || die "docker not found on PATH"

log_step "Installing container-based Bitwarden CLI (native Rust, no Node.js)"

# --- Step 1: Download and extract the native binary ---
BUILD_DIR=$(mktemp -d)
log_info "Downloading bw ${BW_VERSION} native binary..."

docker run --rm -v "${BUILD_DIR}:/build" alpine:3.20 \
    sh -c "apk add --no-cache unzip >/dev/null 2>&1 && \
           wget -q -O /build/bw.zip '${BW_BINARY_URL}' && \
           unzip -o /build/bw.zip -d /build/ && \
           rm /build/bw.zip && \
           chmod +x /build/bw"

[ -f "${BUILD_DIR}/bw" ] || die "download failed: bw binary not found"
log_ok "Downloaded native binary"

# --- Step 2: Build the Docker image ---
log_info "Building Docker image ${BW_IMAGE}..."

DOCKERFILE_DIR="${REPO_ROOT}/docker/bw-native"
if [ ! -f "${DOCKERFILE_DIR}/Dockerfile" ]; then
    die "Dockerfile not found: ${DOCKERFILE_DIR}/Dockerfile"
fi

cp "${BUILD_DIR}/bw" "${DOCKERFILE_DIR}/bw"
docker build -t "$BW_IMAGE" "$DOCKERFILE_DIR"
rm -f "${DOCKERFILE_DIR}/bw"
log_ok "Built image ${BW_IMAGE}"

# --- Step 3: Install host-side wrapper and entrypoint ---
mkdir -p "$INSTALL_BIN" "$INSTALL_LIB"

cp "${HERE}/bw-cli.sh" "${INSTALL_BIN}/bw"
chmod 755 "${INSTALL_BIN}/bw"
log_ok "Installed wrapper to ${INSTALL_BIN}/bw"

cp "${HERE}/bw-entrypoint.sh" "${INSTALL_LIB}/entrypoint.sh"
chmod 755 "${INSTALL_LIB}/entrypoint.sh"
log_ok "Installed entrypoint to ${INSTALL_LIB}/entrypoint.sh"

# --- Step 4: Verify ---
log_info "Verifying installation..."
if "${INSTALL_BIN}/bw" --version >/dev/null 2>&1; then
    log_ok "bw CLI is operational"
else
    log_warn "bw wrapper installed but verification call failed"
    log_warn "check ~/.config/bw/env credentials and try: bw status"
fi

log_step "Installation complete"
log_info "Usage: bw status | bw list items | bw get password \"Item Name\""