#!/usr/bin/env bash
set -euo pipefail

# Silence git's "default branch name" hints emitted on every `git init` in
# tests that create temp repos. Sets init.defaultBranch=master via env so we
# don't have to touch the user's real git config.
export GIT_CONFIG_COUNT=1
export GIT_CONFIG_KEY_0=init.defaultBranch
export GIT_CONFIG_VALUE_0=master

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

# Ordered fail-fast: cheapest deterministic checks first, slowest builds and
# test suites last.  `set -euo pipefail` aborts at the first failure, so a fmt
# or clippy drift never wastes time on a frontend build or a multi-minute
# test run.

echo "=== Checking Rust formatting ==="
if cargo fmt --version &>/dev/null; then
  cargo fmt --manifest-path "$PROJECT_ROOT/Cargo.toml" --all --check
else
  echo "Skipping Rust formatting check (rustfmt not installed)"
fi

echo "=== Checking for duplicate module files (X.rs and X/mod.rs coexisting) ==="
_dup_found=0
while IFS= read -r -d '' _mod_file; do
  _dir=$(dirname "$_mod_file")
  _parent=$(dirname "$_dir")
  _name=$(basename "$_dir")
  _flat="$_parent/$_name.rs"
  if [ -f "$_flat" ]; then
    echo "ERROR [E0761]: duplicate module file — both files exist in the same source tree:"
    echo "  $_flat"
    echo "  $_mod_file"
    echo "  Fix: git rm $_flat in the same commit that introduces $_mod_file"
    _dup_found=1
  fi
done < <(find "$PROJECT_ROOT/server" "$PROJECT_ROOT/source-map-gen" \
           -path "*/target" -prune -o -name "mod.rs" -print0 2>/dev/null)
if [ "$_dup_found" -eq 1 ]; then
  echo "FAIL: duplicate module files detected — remove the flat .rs file with git rm before committing."
  exit 1
fi

echo "=== Running cargo clippy ==="
cargo clippy --manifest-path "$PROJECT_ROOT/Cargo.toml" --all-targets --all-features -- -D warnings

echo "=== Checking doc coverage on changed files ==="
cargo run --manifest-path "$PROJECT_ROOT/Cargo.toml" -p source-map-gen --bin source-map-check --quiet -- --worktree "$PROJECT_ROOT" --base master

echo "=== Building frontend ==="
if [ -d "$PROJECT_ROOT/frontend" ]; then
  cd "$PROJECT_ROOT/frontend"
  # The merge gate runs in workspaces whose pre-existing `node_modules` was
  # populated by an earlier `npm install --omit=dev` (or a partial install).
  # In that state `npm install` reports "up to date, audited N packages"
  # without actually adding the missing devDependencies, so the subsequent
  # `tsc && vite build` fails with `sh: 1: tsc: not found`.
  #
  # Repair the install when typescript isn't reachable (story 1086 merge gate
  # regression).  We probe the on-disk binary rather than relying on PATH so
  # this also covers the case where `node_modules/.bin/` is missing.
  if [ ! -x node_modules/typescript/bin/tsc ]; then
    echo "[script/test] node_modules missing typescript; performing clean install."
    rm -rf node_modules
    npm install --include=dev
  else
    npm install --include=dev
  fi
  npm run build
  cd "$PROJECT_ROOT"
else
  echo "Skipping frontend build (no frontend directory)"
fi

echo "=== Running Rust tests ==="
cargo test --manifest-path "$PROJECT_ROOT/Cargo.toml" --bin huskies
cargo test --manifest-path "$PROJECT_ROOT/Cargo.toml" -p source-map-gen

echo "=== Running frontend unit tests ==="
if [ -d "$PROJECT_ROOT/frontend" ]; then
  cd "$PROJECT_ROOT/frontend"
  npm test
else
  echo "Skipping frontend tests (no frontend directory)"
fi

# Disabled: e2e tests may be causing merge pipeline hangs (no running server
# in merge workspace → Playwright blocks indefinitely). Re-enable once confirmed.
# Disabled: e2e tests cause merge pipeline hangs (no running server
# in merge workspace → Playwright blocks indefinitely).
# echo "=== Running e2e tests ==="
# npm run test:e2e