import sys
import os
import json
import subprocess
from pathlib import Path
from crewai import Crew, Task
from crews.agromatrix_crew.agents.stepan_orchestrator import build_stepan
from crews.agromatrix_crew.agents.operations_agent import build_operations
from crews.agromatrix_crew.agents.iot_agent import build_iot
from crews.agromatrix_crew.agents.platform_agent import build_platform
from crews.agromatrix_crew.agents.spreadsheet_agent import build_spreadsheet
from crews.agromatrix_crew.agents.sustainability_agent import build_sustainability
from crews.agromatrix_crew.audit import audit_event, new_trace
from agromatrix_tools import tool_dictionary
from agromatrix_tools import tool_operation_plan
from crews.agromatrix_crew.operator_commands import route_operator_command, route_operator_text


def farmos_ui_hint():
    port = os.getenv('FARMOS_UI_PORT', '18080')
    try:
        out = subprocess.check_output(['docker','ps','--format','{{.Names}}'], text=True)
        if 'farmos_ui_proxy' in out:
            return "\n[UI] farmOS доступний локально: http://127.0.0.1:{} (basic auth)".format(port)
    except Exception:
        return ""
    return ""


def detect_intent(text: str) -> str:
    t = text.lower()
    if 'сплануй' in t and 'тиж' in t:
        return 'plan_week'
    if 'сплануй' in t:
        return 'plan_day'
    if 'критично' in t or 'на завтра' in t:
        return 'show_critical_tomorrow'
    if 'план/факт' in t or 'план факт' in t:
        return 'plan_vs_fact'
    if 'закрий план' in t:
        return 'close_plan'
    return 'general'


def validate_payload(obj: dict):
    required = ['status', 'summary', 'artifacts', 'tool_calls', 'next_actions']
    for k in required:
        if k not in obj:
            return False, f'missing:{k}'
    if obj['status'] not in ['ok', 'error']:
        return False, 'bad_status'
    if not isinstance(obj['summary'], str):
        return False, 'summary_not_string'
    if not isinstance(obj['artifacts'], list):
        return False, 'artifacts_not_list'
    if not isinstance(obj['tool_calls'], list):
        return False, 'tool_calls_not_list'
    if not isinstance(obj['next_actions'], list):
        return False, 'next_actions_not_list'
    return True, 'ok'


def run_task_with_retry(agent, description: str, trace_id: str, max_retries: int = 2):
    instruction = "Return ONLY valid JSON matching schema in crews/agromatrix_crew/schema.json. No extra text."
    last_error = ''
    for attempt in range(max_retries + 1):
        desc = description if attempt == 0 else (description + "\n\n" + instruction)

        task = Task(
            description=desc,
            expected_output="JSON strictly matching schema.json",
            agent=agent
        )
        crew = Crew(agents=[agent], tasks=[task], verbose=True)
        result = crew.kickoff()
        raw = str(result)
        try:
            data = json.loads(raw)
            ok, reason = validate_payload(data)
            if ok:
                return data
            last_error = reason
        except Exception as e:
            last_error = f'json_error:{e}'
    audit_event({
        'trace_id': trace_id,
        'agent': agent.role,
        'action': 'json_validation_failed',
        'error': last_error
    })
    return {
        'status': 'error',
        'summary': f'JSON validation failed: {last_error}',
        'artifacts': [],
        'tool_calls': [],
        'next_actions': []
    }


def handle_message(text: str, user_id: str = '', chat_id: str = '', trace_id: str = '', ops_mode: bool = False, last_pending_list: list | None = None) -> str:
    trace = new_trace(text)
    if trace_id:
        trace['trace_id'] = trace_id

    os.environ['AGX_TRACE_ID'] = trace['trace_id']
    os.environ['AGX_USER_ID'] = str(user_id)
    os.environ['AGX_CHAT_ID'] = str(chat_id)
    os.environ['AGX_OPS_MODE'] = '1' if ops_mode else '0'

    # operator commands
    if text.strip().startswith('/'):
        op_res = route_operator_command(text, str(user_id), str(chat_id))
        if op_res:
            return json.dumps(op_res, ensure_ascii=False)
    elif ops_mode:
        op_res = route_operator_text(text, str(user_id), str(chat_id), last_pending_list=last_pending_list)
        if op_res:
            return json.dumps(op_res, ensure_ascii=False)

    stepan = build_stepan()
    ops = build_operations()
    iot = build_iot()
    platform = build_platform()
    spreadsheet = build_spreadsheet()
    sustainability = build_sustainability()

    audit_event({**trace, 'agent': 'stepan', 'action': 'intake'})

    # Preflight normalization
    norm = tool_dictionary.normalize_from_text(text, trace_id=trace['trace_id'], source='telegram')
    pending = [item for cat in norm.values() for item in cat if item.get('status') == 'pending']
    if pending:
        lines = ["=== PENDING TERMS (Stepan) ==="]
        for item in pending:
            lines.append(f"- {item.get('term')}: {item.get('suggestions', [])[:3]}")
        lines.append("\nБудь ласка, уточніть невідомі терміни. Після підтвердження я продовжу.")
        return "\n".join(lines)

    intent = detect_intent(text)
    pending_count = 0
    if ops_mode:
        try:
            from agromatrix_tools import tool_dictionary_review as review
            pending_count = review.stats().get('open', 0)
        except Exception:
            pending_count = 0

    if intent in ['plan_week', 'plan_day']:
        plan_id = tool_operation_plan.create_plan({
            'scope': {
                'field_ids': [i.get('normalized_id') for i in norm.get('fields', []) if i.get('status')=='ok'],
                'crop_ids': [i.get('normalized_id') for i in norm.get('crops', []) if i.get('status')=='ok'],
                'date_window': {'start': '', 'end': ''}
            },
            'tasks': []
        }, trace_id=trace['trace_id'], source='telegram')
        return json.dumps({
            'status': 'ok',
            'summary': f'План створено: {plan_id}',
            'artifacts': [],
            'tool_calls': [],
            'next_actions': ['уточнити дати та операції'],
            'pending_dictionary_items': pending_count if ops_mode else None
        }, ensure_ascii=False)

    if intent == 'show_critical_tomorrow':
        _ = tool_operation_plan.plan_dashboard({}, {})
        return json.dumps({
            'status': 'ok',
            'summary': 'Критичні задачі на завтра',
            'artifacts': [],
            'tool_calls': [],
            'next_actions': [],
            'pending_dictionary_items': pending_count if ops_mode else None
        }, ensure_ascii=False)

    if intent == 'plan_vs_fact':
        _ = tool_operation_plan.plan_dashboard({}, {})
        return json.dumps({
            'status': 'ok',
            'summary': 'План/факт зведення',
            'artifacts': [],
            'tool_calls': [],
            'next_actions': [],
            'pending_dictionary_items': pending_count if ops_mode else None
        }, ensure_ascii=False)

    # general crew flow
    ops_out = run_task_with_retry(ops, "Оціни чи потрібні операційні записи або читання farmOS", trace['trace_id'])
    iot_out = run_task_with_retry(iot, "Оціни чи є потреба в даних ThingsBoard або NATS", trace['trace_id'])
    platform_out = run_task_with_retry(platform, "Перевір базовий статус сервісів/інтеграцій", trace['trace_id'])
    sheet_out = run_task_with_retry(spreadsheet, "Якщо запит стосується таблиць — підготуй артефакти", trace['trace_id'])
    sustainability_out = run_task_with_retry(sustainability, "Якщо потрібні агрегації — дай read-only підсумки", trace['trace_id'])

    audit_event({**trace, 'agent': 'stepan', 'action': 'delegate', 'targets': ['ops','iot','platform','spreadsheet','sustainability']})

    summary = {
        'ops': ops_out,
        'iot': iot_out,
        'platform': platform_out,
        'spreadsheet': sheet_out,
        'sustainability': sustainability_out
    }

    final_task = Task(
        description=f"Сформуй фінальну коротку відповідь користувачу. Вхідні дані (JSON): {json.dumps(summary, ensure_ascii=False)}",
        expected_output="Коротка консолідована відповідь для користувача українською.",
        agent=stepan
    )
    crew = Crew(agents=[stepan], tasks=[final_task], verbose=True)
    result = crew.kickoff()

    return str(result) + farmos_ui_hint()


def main():
    if len(sys.argv) < 2:
        print('Usage: python run.py [--trace <id>] "<user request>"')
        sys.exit(1)

    args = sys.argv[1:]
    trace_override = None
    if args and args[0] == '--trace':
        trace_override = args[1]
        args = args[2:]

    user_request = args[0]
    output = handle_message(user_request, user_id=os.getenv('AGX_USER_ID',''), chat_id=os.getenv('AGX_CHAT_ID',''), trace_id=trace_override or '', ops_mode=os.getenv('AGX_OPS_MODE','0')=='1')
    print(output)


if __name__ == '__main__':
    main()