#!/bin/sh
# Puts these tools where a shell and an agent will find them, by symlink.
#
# Symlinks rather than copies so that editing the repo is editing what runs --
# the alternative is a second copy that drifts, which is exactly what this
# repo was made to end (ui-trace, the adb wrapper and three near-identical
# emulator boot sequences all lived in different places).
#
# Idempotent: run it again after a pull, or after adding a command.
set -eu

here=$(cd "$(dirname "$0")" && pwd)
bindir=${BINDIR:-$HOME/.local/bin}
sharedir=${SHAREDIR:-$HOME/.local/share}

mkdir -p "$bindir" "$sharedir"

for target in "$here"/bin/*; do
    name=$(basename "$target")
    link="$bindir/$name"
    # A real file here is the pre-repo copy of one of these tools. Kept, once,
    # under .bak: it is somebody's working state until they have looked at it,
    # and a tool that silently deletes the thing it replaces is one nobody can
    # undo.
    if [ -e "$link" ] && [ ! -L "$link" ]; then
        echo "install: keeping the existing $name as $name.bak"
        mv "$link" "$link.bak"
    fi
    ln -sfn "$target" "$link"
    echo "install: $link -> $target"
done

# The device recorder's source and build script, which ui-trace reads from a
# fixed path and rebuilds when the source is newer than the jar. Linked as a
# directory so a rebuild lands in the repo rather than beside it.
if [ -e "$sharedir/ui-trace" ] && [ ! -L "$sharedir/ui-trace" ]; then
    echo "install: keeping the existing share/ui-trace as ui-trace.bak"
    mv "$sharedir/ui-trace" "$sharedir/ui-trace.bak"
fi
ln -sfn "$here/share/ui-trace" "$sharedir/ui-trace"
echo "install: $sharedir/ui-trace -> $here/share/ui-trace"

# Gradle never goes through the adb wrapper -- its device tasks reach every
# attached device by themselves -- so the one place that can hold for a
# checkout nobody has adopted this in is an init script, which Gradle applies
# to every build on this machine.
gradledir=${GRADLE_INIT_DIR:-$HOME/.gradle/init.d}
mkdir -p "$gradledir"
init="$gradledir/emulator-tools.gradle"
if [ -e "$init" ] && [ ! -L "$init" ]; then
    echo "install: keeping the existing emulator-tools.gradle as emulator-tools.gradle.bak"
    mv "$init" "$init.bak"
fi
ln -sfn "$here/share/gradle-init/emulator-tools.gradle" "$init"
echo "install: $init -> $here/share/gradle-init/emulator-tools.gradle"

case ":$PATH:" in
    *":$bindir:"*) ;;
    *) echo "install: note -- $bindir is not on PATH" ;;
esac

# The adb wrapper only wins if it comes before the SDK's own on PATH. Said
# rather than fixed: which shell profile to edit is not this script's to
# decide, and getting it wrong is a broken login shell.
real=$(command -v adb 2>/dev/null || true)
if [ "$real" != "$bindir/adb" ]; then
    echo "install: note -- 'adb' resolves to $real, not $bindir/adb;"
    echo "         put $bindir before the SDK's platform-tools on PATH."
fi