#!/usr/bin/env bash
set -u
SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
source "$SCRIPT_DIR/lib/common.sh"

FAILURES=0
assert_eq() {
    if [ "$1" = "$2" ]; then echo "PASS: $3"; else echo "FAIL: $3 (expected '$1', got '$2')"; FAILURES=$((FAILURES + 1)); fi
}

# Test 1: user-mode merge — magic replaced, laravel-boost preserved
tmpdir=$(mktemp -d)
cp "$SCRIPT_DIR/fixtures/sample-claude-json.json" "$tmpdir/.claude.json"
cat > "$tmpdir/brain-mcp.json" <<EOF2
{
  "mcpServers": {
    "magic": {
      "type": "stdio",
      "command": "cmd",
      "args": ["/c", "npx", "-y", "@21st-dev/magic@latest", "API_KEY=<<MAGIC_API_KEY>>"]
    }
  }
}
EOF2

bash "$SCRIPT_DIR/lib/merge-mcp.sh" --mode=user "$tmpdir/.claude.json" "$tmpdir/brain-mcp.json"

# magic args should now contain placeholder
magic_api_key=$(jq -r '.mcpServers.magic.args[-1]' "$tmpdir/.claude.json")
assert_eq "API_KEY=<<MAGIC_API_KEY>>" "$magic_api_key" "user-mode: magic API_KEY replaced with placeholder"

# laravel-boost preserved
lb_cmd=$(jq -r '.mcpServers["laravel-boost"].command' "$tmpdir/.claude.json")
assert_eq "php" "$lb_cmd" "user-mode: laravel-boost preserved"

# preserveMe key still present (other keys unchanged)
preserve=$(jq -r '.preserveMe' "$tmpdir/.claude.json")
assert_eq "yes" "$preserve" "user-mode: other top-level keys preserved"

rm -rf "$tmpdir"

# Test 2: project-mode merge — playwright/github/semgrep added, laravel-boost preserved
tmpdir=$(mktemp -d)
cp "$SCRIPT_DIR/fixtures/sample-mcp.json" "$tmpdir/.mcp.json"
cat > "$tmpdir/brain-mcp.json" <<EOF3
{
  "mcpServers": {
    "playwright": {"command": "npx", "args": ["-y", "@playwright/mcp"]},
    "github": {"type": "http", "url": "https://api.githubcopilot.com/mcp"},
    "semgrep": {"command": "npx", "args": ["-y", "semgrep-mcp"]}
  }
}
EOF3

bash "$SCRIPT_DIR/lib/merge-mcp.sh" --mode=project "$tmpdir/.mcp.json" "$tmpdir/brain-mcp.json"

# Should have 4 servers total
count=$(jq '.mcpServers | length' "$tmpdir/.mcp.json")
assert_eq "4" "$count" "project-mode: 4 servers after merge"

# laravel-boost preserved
lb=$(jq -r '.mcpServers["laravel-boost"].command' "$tmpdir/.mcp.json")
assert_eq "php" "$lb" "project-mode: laravel-boost preserved"

# playwright added
pw=$(jq -r '.mcpServers.playwright.command' "$tmpdir/.mcp.json")
assert_eq "npx" "$pw" "project-mode: playwright added"

rm -rf "$tmpdir"

# Test 3: Cyrillic path (Bug 1 regression) — jq must handle non-ASCII paths
# On Windows MSYS2 jq's fopen cannot open Cyrillic paths via --slurpfile.
# Fix uses --argjson with $(cat …) — shell handles UTF-8 paths fine.
cyr_dir="/tmp/тест-merge-$$"
mkdir -p "$cyr_dir"
cat > "$cyr_dir/brain.json" <<'EOF4'
{"mcpServers":{"playwright":{"command":"npx","args":["-y","@playwright/mcp"]}}}
EOF4
echo '{"mcpServers":{"laravel-boost":{"command":"php"}}}' > "$cyr_dir/target.json"

bash "$SCRIPT_DIR/lib/merge-mcp.sh" --mode=project "$cyr_dir/target.json" "$cyr_dir/brain.json" 2>/dev/null
merge_exit=$?
assert_eq "0" "$merge_exit" "cyrillic-path: merge-mcp.sh exits 0"

if [ "$merge_exit" -eq 0 ]; then
    pw=$(jq -r '.mcpServers.playwright.command' "$cyr_dir/target.json" 2>/dev/null || echo "")
    assert_eq "npx" "$pw" "cyrillic-path: playwright merged from Cyrillic brain path"
    lb=$(jq -r '.mcpServers["laravel-boost"].command' "$cyr_dir/target.json" 2>/dev/null || echo "")
    assert_eq "php" "$lb" "cyrillic-path: laravel-boost preserved"
fi

rm -rf "$cyr_dir"

echo "---"
echo "Failures: $FAILURES"
exit $FAILURES