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

PORT=17654
BASE="http://127.0.0.1:$PORT"
PID=""
TMPDIR=$(mktemp -d)

cleanup() {
    if [[ -n "$PID" ]]; then
        kill "$PID" 2>/dev/null || true
        wait "$PID" 2>/dev/null || true
    fi
    rm -rf "$TMPDIR"
}
trap cleanup EXIT

# -- Build ----------------------------------------------------------------
echo "==> Building..."
cargo build --quiet

# -- Set up temp config & test repo (never touches ~/.config) -------------
TEST_REPO="$TMPDIR/repos/test-repo"
mkdir -p "$TEST_REPO"
echo "hello" > "$TEST_REPO/README.md"
git -C "$TEST_REPO" init -q
git -C "$TEST_REPO" add -A
git -C "$TEST_REPO" commit -q -m "init"

TEST_CONFIG="$TMPDIR/config.json"
cat > "$TEST_CONFIG" <<EOF
{
  "port": $PORT,
  "check_git": true,
  "repo_dirs": ["$TMPDIR/repos"],
  "repos": {
    "explicit": "$TEST_REPO"
  }
}
EOF

# -- Start server ---------------------------------------------------------
echo "==> Starting zed-bridge on port $PORT..."
ZED_BRIDGE_CONFIG="$TEST_CONFIG" ./target/debug/zed-bridge &
PID=$!
sleep 0.3

if ! kill -0 "$PID" 2>/dev/null; then
    echo "FAIL: server did not start"
    exit 1
fi

# -- Test helpers ---------------------------------------------------------
PASS=0
FAIL=0

check() {
    local label="$1" url="$2" expect="$3"
    local status
    status=$(curl -s -o /dev/null -w '%{http_code}' --max-time 3 -0 "$url" 2>/dev/null || echo "000")
    if [[ "$status" == "$expect" ]]; then
        echo "  PASS  $label  (HTTP $status)"
        PASS=$((PASS + 1))
    else
        echo "  FAIL  $label  expected $expect got $status"
        FAIL=$((FAIL + 1))
    fi
}

check_body() {
    local label="$1" url="$2" pattern="$3"
    local body
    body=$(curl -s --max-time 3 -0 "$url" 2>/dev/null || true)
    if echo "$body" | grep -q "$pattern"; then
        echo "  PASS  $label  (body contains '$pattern')"
        PASS=$((PASS + 1))
    else
        echo "  FAIL  $label  body missing '$pattern'"
        echo "        got: ${body:0:500}"
        FAIL=$((FAIL + 1))
    fi
}

# -- Tests ----------------------------------------------------------------
echo "==> Running tests..."

check "health endpoint" \
    "$BASE/health" 200

check_body "health JSON" \
    "$BASE/health" '"status":"ok"'

check "unknown endpoint" \
    "$BASE/nope" 404

check "missing params" \
    "$BASE/open" 400

check "missing file param" \
    "$BASE/open?repo=test-repo" 400

check "unknown repo" \
    "$BASE/open?repo=nonexistent&file=x" 404

# repo_dirs auto-detection
check "repo_dirs resolve (test-repo)" \
    "$BASE/open?repo=test-repo&file=README.md" 200

# explicit repos entry
check "explicit repos entry" \
    "$BASE/open?repo=explicit&file=README.md" 200

# file not found within valid repo
check "file not found" \
    "$BASE/open?repo=test-repo&file=nope.txt" 404

# path traversal — returns 404 (file doesn't exist) or 403 (file exists but outside repo)
check "path traversal blocked" \
    "$BASE/open?repo=test-repo&file=../../../etc/passwd" 404

# clean file → auto-close
check_body "clean file auto-closes" \
    "$BASE/open?repo=test-repo&file=README.md" "close automatically"

# dirty file → stays open with warning
echo "modified" >> "$TEST_REPO/README.md"
check_body "dirty file warns" \
    "$BASE/open?repo=test-repo&file=README.md" "local modifications"

# pull endpoint — missing repo
check "pull missing repo" \
    "$BASE/pull" 400

# pull endpoint — unknown repo
check_body "pull unknown repo" \
    "$BASE/pull?repo=nonexistent" "Unknown repo"

# pull endpoint — valid repo (no remote, will fail but returns JSON)
check_body "pull returns JSON" \
    "$BASE/pull?repo=test-repo" '"ok"'

# -- Summary --------------------------------------------------------------
echo ""
echo "==> $PASS passed, $FAIL failed"
[[ "$FAIL" -eq 0 ]]