#!/bin/bash
# Stage a lean per-site bundle next to ShopDBFlask.iss, ready for Inno Setup.
#
# The bundle is built FOR ONE SITE from its plugin profile (ADR-013): plugins the
# site did not choose are absent from the payload entirely. Build one installer
# per site, not one universal installer.
#
# Usage: build-installer.sh <site-profile.json> [repo-path]
#
# The wheelhouse cannot be built here. Wheels are cp314 win_amd64 and must be
# produced ON Windows with the matching Python:
#   pip download -r requirements.txt -d wheels --only-binary=:all:
# Copy that wheels\ directory in before compiling.
set -euo pipefail

HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROFILE="${1:?usage: build-installer.sh <site-profile.json> [repo-path]}"
REPO="${2:-$HOME/projects/shopdb-flask}"
BUNDLE="$HERE/bundle"

[ -f "$PROFILE" ] || { echo "profile not found: $PROFILE"; exit 1; }
[ -d "$REPO" ]    || { echo "repo not found: $REPO"; exit 1; }

echo "==> Staging lean app tree from $PROFILE"
rm -rf "$BUNDLE/app"
bash "$REPO/scripts/build-site.sh" "$PROFILE" "$BUNDLE/app"

# build-site.sh emits the SPA as frontend-dist; the installer's web.config and
# static route expect frontend\dist.
if [ -d "$BUNDLE/app/frontend-dist" ]; then
    mkdir -p "$BUNDLE/app/frontend"
    rm -rf "$BUNDLE/app/frontend/dist"
    mv "$BUNDLE/app/frontend-dist" "$BUNDLE/app/frontend/dist"
fi
# The /shopdb-based build, used when the operator picks the subpath deployment.
if [ -d "$BUNDLE/app/frontend-dist-subpath" ]; then
    rm -rf "$BUNDLE/app/frontend/dist-subpath"
    mv "$BUNDLE/app/frontend-dist-subpath" "$BUNDLE/app/frontend/dist-subpath"
fi

# Tell the .iss which plugins this bundle actually carries, so the wizard's
# plugin page always matches the payload instead of a hand-maintained list.
echo "==> Writing plugins.iss"
PLUGINS=$(ls "$BUNDLE/app/plugins" 2>/dev/null | tr '\n' ',' | sed 's/,$//')
# The subpath SPA is built with its base path compiled in, so whether the wizard
# can OFFER a subpath install is a property of the bundle, not a runtime choice.
SUBPATH_ALIAS_BUILT=""
if [ -f "$BUNDLE/app/frontend/dist-subpath/.alias" ]; then
    SUBPATH_ALIAS_BUILT="$(cat "$BUNDLE/app/frontend/dist-subpath/.alias")"
fi

cat > "$HERE/plugins.iss" <<EOF
; GENERATED by build-installer.sh - do not edit.
; The plugins present in bundle\\app\\plugins at build time.
#define AvailablePlugins "$PLUGINS"
; The alias the subpath SPA was built for, or empty if this bundle has no
; subpath build - in which case the wizard must not offer that option.
#define SubpathAlias "$SUBPATH_ALIAS_BUILT"
EOF
echo "    $PLUGINS"

echo "==> Copying installer scripts"
mkdir -p "$BUNDLE"
cp "$HOME/Downloads/shopdb-install.ps1" "$HOME/Downloads/shopdb-preflight.ps1" "$BUNDLE/"

echo ""
echo "Bundle staged at: $BUNDLE"
for d in app wheels python httpplatformhandler mysql; do
    if [ -d "$BUNDLE/$d" ]; then
        printf '  %-20s %s\n' "$d" "$(du -sh "$BUNDLE/$d" | cut -f1)"
    else
        printf '  %-20s MISSING\n' "$d"
    fi
done
echo ""
echo "  plugins shipped: $(ls "$BUNDLE/app/plugins" 2>/dev/null | tr '\n' ' ')"
echo ""
echo "Missing pieces must be added by hand before compiling:"
echo "  wheels\\              built ON Windows (cp314 win_amd64), ~47 wheels"
echo "  python\\              python-3.14.6-amd64.exe"
echo "  httpplatformhandler\\ httpPlatformHandler_amd64.msi"
echo "  mysql\\               mysql-8.0.46-winx64.msi  (bundled-database option only)"
echo ""
echo "Then compile on Windows:  iscc ShopDBFlask.iss"