#!/usr/bin/env bash
# dev-sync.sh — manage the lum_ccc_rust dependency in lum_ccc_fplugin
#
# Usage:
#   ./scripts/dev-sync.sh --update   After pushing changes to lum_ccc_rust:
#                                    updates Cargo.lock to the new HEAD of trunk
#                                    and clears the Cargokit build cache.
#
#   ./scripts/dev-sync.sh --local    Switch Cargo.toml to path deps for fast
#                                    local iteration (no git fetch, no lock churn).
#
#   ./scripts/dev-sync.sh --git      Switch Cargo.toml back to git deps for
#                                    CI / Flutter builds.
#
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PLUGIN_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
RUST_DIR="$PLUGIN_ROOT/rust"
FLUTTER_APP="${FLUTTER_APP:-/Volumes/LUM/source/letusmsg_proj/app/letusmsg_app/flutter_src}"
CARGOKIT_BUILD_CACHE="$FLUTTER_APP/build/ccc_cryptography"

CARGO_TOML="$RUST_DIR/Cargo.toml"
LOCAL_CORE_PATH="/Volumes/LUM/source/letusmsg_proj/app/lum_ccc_rust/crates/ccc-crypto-core"
LOCAL_WOLFSSL_PATH="/Volumes/LUM/source/letusmsg_proj/app/lum_ccc_rust/crates/ccc-crypto-wolfssl"
GIT_URL="ssh://git@10.0.5.109/j3g/lum_ccc_rust.git"
GIT_BRANCH="trunk"

usage() {
    sed -n '/^# Usage:/,/^[^#]/p' "$0" | grep '^#' | sed 's/^# \?//'
    exit 1
}

cmd_update() {
    echo "==> Fetching latest $GIT_BRANCH from $GIT_URL ..."
    cd "$RUST_DIR"
    cargo update -p ccc-crypto-core -p ccc-crypto-wolfssl
    NEW_HASH="$(grep -A2 'name = "ccc-crypto-wolfssl"' Cargo.lock | grep -o '#[a-f0-9]*' | head -1)"

    if [ -d "$CARGOKIT_BUILD_CACHE" ]; then
        echo "==> Clearing Cargokit build cache at $CARGOKIT_BUILD_CACHE ..."
        rm -rf "$CARGOKIT_BUILD_CACHE"
    fi

    # Collect all changed files relative to plugin root
    cd "$PLUGIN_ROOT"
    CHANGED="$(git diff --name-only HEAD)"

    echo ""
    echo "================================================================================"
    echo "  NEXT: commit and push lum_ccc_fplugin for changes to take effect"
    echo "================================================================================"
}

cmd_local() {
    echo "==> Switching to path dependencies (local dev mode) ..."
    # Comment out git deps, uncomment path deps
    sed -i '' \
        -e 's|^ccc-crypto-core = { git = .*|# ccc-crypto-core = { git = "'"$GIT_URL"'", branch = "'"$GIT_BRANCH"'" }|' \
        -e 's|^ccc-crypto-wolfssl = { git = .*|# ccc-crypto-wolfssl = { git = "'"$GIT_URL"'", branch = "'"$GIT_BRANCH"'" }|' \
        -e 's|^# ccc-crypto-core = { path = |ccc-crypto-core = { path = |' \
        -e 's|^# ccc-crypto-wolfssl = { path = |ccc-crypto-wolfssl = { path = |' \
        "$CARGO_TOML"
    echo "==> Done. Cargo.toml now uses local path deps."
    echo "    Run 'cargo build' directly in $RUST_DIR for fast iteration."
    echo "    Run '$0 --git' to switch back before committing."
}

cmd_git() {
    echo "==> Switching back to git dependencies ..."
    sed -i '' \
        -e 's|^# ccc-crypto-core = { git = |ccc-crypto-core = { git = |' \
        -e 's|^# ccc-crypto-wolfssl = { git = |ccc-crypto-wolfssl = { git = |' \
        -e 's|^ccc-crypto-core = { path = |# ccc-crypto-core = { path = |' \
        -e 's|^ccc-crypto-wolfssl = { path = |# ccc-crypto-wolfssl = { path = |' \
        "$CARGO_TOML"
    echo "==> Done. Cargo.toml now uses git deps."
    echo "    Run '$0 --update' if you want to pull the latest trunk commit."
}

case "${1:-}" in
    --update) cmd_update ;;
    --local)  cmd_local  ;;
    --git)    cmd_git    ;;
    *)        usage      ;;
esac