from flask import abort, jsonify, request
from flask_restx import Resource
from pydantic import BaseModel, Field, field_validator
from sqlalchemy.orm import sessionmaker

from controllers.console import console_ns
from controllers.console.app.wraps import get_app_model
from controllers.console.wraps import account_initialization_required, setup_required
from extensions.ext_database import db
from libs.datetime_utils import parse_time_range
from libs.login import current_account_with_tenant, login_required
from models.enums import WorkflowRunTriggeredFrom
from models.model import AppMode
from repositories.factory import DifyAPIRepositoryFactory

DEFAULT_REF_TEMPLATE_SWAGGER_2_0 = "#/definitions/{model}"


class WorkflowStatisticQuery(BaseModel):
    start: str | None = Field(default=None, description="Start date and time (YYYY-MM-DD HH:MM)")
    end: str | None = Field(default=None, description="End date and time (YYYY-MM-DD HH:MM)")

    @field_validator("start", "end", mode="before")
    @classmethod
    def blank_to_none(cls, value: str | None) -> str | None:
        if value == "":
            return None
        return value


console_ns.schema_model(
    WorkflowStatisticQuery.__name__,
    WorkflowStatisticQuery.model_json_schema(ref_template=DEFAULT_REF_TEMPLATE_SWAGGER_2_0),
)


@console_ns.route("/apps/<uuid:app_id>/workflow/statistics/daily-conversations")
class WorkflowDailyRunsStatistic(Resource):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        session_maker = sessionmaker(bind=db.engine, expire_on_commit=False)
        self._workflow_run_repo = DifyAPIRepositoryFactory.create_api_workflow_run_repository(session_maker)

    @console_ns.doc("get_workflow_daily_runs_statistic")
    @console_ns.doc(description="Get workflow daily runs statistics")
    @console_ns.doc(params={"app_id": "Application ID"})
    @console_ns.expect(console_ns.models[WorkflowStatisticQuery.__name__])
    @console_ns.response(200, "Daily runs statistics retrieved successfully")
    @get_app_model
    @setup_required
    @login_required
    @account_initialization_required
    def get(self, app_model):
        account, _ = current_account_with_tenant()

        args = WorkflowStatisticQuery.model_validate(request.args.to_dict(flat=True))  # type: ignore

        assert account.timezone is not None

        try:
            start_date, end_date = parse_time_range(args.start, args.end, account.timezone)
        except ValueError as e:
            abort(400, description=str(e))

        response_data = self._workflow_run_repo.get_daily_runs_statistics(
            tenant_id=app_model.tenant_id,
            app_id=app_model.id,
            triggered_from=WorkflowRunTriggeredFrom.APP_RUN,
            start_date=start_date,
            end_date=end_date,
            timezone=account.timezone,
        )

        return jsonify({"data": response_data})


@console_ns.route("/apps/<uuid:app_id>/workflow/statistics/daily-terminals")
class WorkflowDailyTerminalsStatistic(Resource):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        session_maker = sessionmaker(bind=db.engine, expire_on_commit=False)
        self._workflow_run_repo = DifyAPIRepositoryFactory.create_api_workflow_run_repository(session_maker)

    @console_ns.doc("get_workflow_daily_terminals_statistic")
    @console_ns.doc(description="Get workflow daily terminals statistics")
    @console_ns.doc(params={"app_id": "Application ID"})
    @console_ns.expect(console_ns.models[WorkflowStatisticQuery.__name__])
    @console_ns.response(200, "Daily terminals statistics retrieved successfully")
    @get_app_model
    @setup_required
    @login_required
    @account_initialization_required
    def get(self, app_model):
        account, _ = current_account_with_tenant()

        args = WorkflowStatisticQuery.model_validate(request.args.to_dict(flat=True))  # type: ignore

        assert account.timezone is not None

        try:
            start_date, end_date = parse_time_range(args.start, args.end, account.timezone)
        except ValueError as e:
            abort(400, description=str(e))

        response_data = self._workflow_run_repo.get_daily_terminals_statistics(
            tenant_id=app_model.tenant_id,
            app_id=app_model.id,
            triggered_from=WorkflowRunTriggeredFrom.APP_RUN,
            start_date=start_date,
            end_date=end_date,
            timezone=account.timezone,
        )

        return jsonify({"data": response_data})


@console_ns.route("/apps/<uuid:app_id>/workflow/statistics/token-costs")
class WorkflowDailyTokenCostStatistic(Resource):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        session_maker = sessionmaker(bind=db.engine, expire_on_commit=False)
        self._workflow_run_repo = DifyAPIRepositoryFactory.create_api_workflow_run_repository(session_maker)

    @console_ns.doc("get_workflow_daily_token_cost_statistic")
    @console_ns.doc(description="Get workflow daily token cost statistics")
    @console_ns.doc(params={"app_id": "Application ID"})
    @console_ns.expect(console_ns.models[WorkflowStatisticQuery.__name__])
    @console_ns.response(200, "Daily token cost statistics retrieved successfully")
    @get_app_model
    @setup_required
    @login_required
    @account_initialization_required
    def get(self, app_model):
        account, _ = current_account_with_tenant()

        args = WorkflowStatisticQuery.model_validate(request.args.to_dict(flat=True))  # type: ignore

        assert account.timezone is not None

        try:
            start_date, end_date = parse_time_range(args.start, args.end, account.timezone)
        except ValueError as e:
            abort(400, description=str(e))

        response_data = self._workflow_run_repo.get_daily_token_cost_statistics(
            tenant_id=app_model.tenant_id,
            app_id=app_model.id,
            triggered_from=WorkflowRunTriggeredFrom.APP_RUN,
            start_date=start_date,
            end_date=end_date,
            timezone=account.timezone,
        )

        return jsonify({"data": response_data})


@console_ns.route("/apps/<uuid:app_id>/workflow/statistics/average-app-interactions")
class WorkflowAverageAppInteractionStatistic(Resource):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        session_maker = sessionmaker(bind=db.engine, expire_on_commit=False)
        self._workflow_run_repo = DifyAPIRepositoryFactory.create_api_workflow_run_repository(session_maker)

    @console_ns.doc("get_workflow_average_app_interaction_statistic")
    @console_ns.doc(description="Get workflow average app interaction statistics")
    @console_ns.doc(params={"app_id": "Application ID"})
    @console_ns.expect(console_ns.models[WorkflowStatisticQuery.__name__])
    @console_ns.response(200, "Average app interaction statistics retrieved successfully")
    @setup_required
    @login_required
    @account_initialization_required
    @get_app_model(mode=[AppMode.WORKFLOW])
    def get(self, app_model):
        account, _ = current_account_with_tenant()

        args = WorkflowStatisticQuery.model_validate(request.args.to_dict(flat=True))  # type: ignore

        assert account.timezone is not None

        try:
            start_date, end_date = parse_time_range(args.start, args.end, account.timezone)
        except ValueError as e:
            abort(400, description=str(e))

        response_data = self._workflow_run_repo.get_average_app_interaction_statistics(
            tenant_id=app_model.tenant_id,
            app_id=app_model.id,
            triggered_from=WorkflowRunTriggeredFrom.APP_RUN,
            start_date=start_date,
            end_date=end_date,
            timezone=account.timezone,
        )

        return jsonify({"data": response_data})