#!/usr/bin/env bash
# SessionStart hook for research-writing-assistant plugin

set -euo pipefail

# Determine plugin root directory
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PLUGIN_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"

# Read using-research-writing content
using_skill_content=$(cat "${PLUGIN_ROOT}/skills/using-research-writing/SKILL.md" 2>&1 || echo "Error reading using-research-writing skill")

# Escape string for JSON embedding
escape_for_json() {
    local s="$1"
    s="${s//\\/\\\\}"
    s="${s//\"/\\\"}"
    s="${s//$'\n'/\\n}"
    s="${s//$'\r'/\\r}"
    s="${s//$'\t'/\\t}"
    printf '%s' "$s"
}

using_skill_escaped=$(escape_for_json "$using_skill_content")
session_context="<EXTREMELY_IMPORTANT>\n你已加载科研写作助手 (Research Writing Assistant)。\n\n**以下是入口技能 'research-writing:using-research-writing' 的完整内容。其他技能请使用 'Skill' 工具调用：**\n\n${using_skill_escaped}\n</EXTREMELY_IMPORTANT>"

# Output context injection as JSON
# Cursor hooks expect additional_context
# Claude Code hooks expect hookSpecificOutput.additionalContext
if [ -n "${CURSOR_PLUGIN_ROOT:-}" ]; then
  printf '{\n  "additional_context": "%s"\n}\n' "$session_context"
elif [ -n "${CLAUDE_PLUGIN_ROOT:-}" ]; then
  printf '{\n  "hookSpecificOutput": {\n    "hookEventName": "SessionStart",\n    "additionalContext": "%s"\n  }\n}\n' "$session_context"
else
  printf '{\n  "additional_context": "%s"\n}\n' "$session_context"
fi

exit 0
