from dataclasses import dataclass
from typing import Literal

from fastapi import Query
from pydantic import BaseModel, ConfigDict, Field, field_validator

from app.api.v1.module_common.file.schema import FileOutSchema
from app.api.v1.module_energy.report_template.schema import EnergyReportTemplateOutSchema
from app.common.enums import QueueEnum
from app.core.base_params import BaseQueryParam, TenantByQueryParam, UserByQueryParam
from app.core.base_schema import BaseSchema, CommonSchema, TenantBySchema, UserBySchema


class EnergyReportGenerationCreateSchema(BaseModel):
    """能源报告生成任务创建模型。"""

    generation_name: str = Field(..., min_length=1, max_length=128, description="任务名称")
    report_type: int = Field(default=1, ge=1, le=2, description="报告类型 1:能源报告 2:光伏报告")
    template_id: int = Field(..., ge=1, description="能源报告模板ID")
    file_id: int | None = Field(default=None, ge=1, description="生成源文档文件ID")
    attachment_file_id: int | None = Field(default=None, ge=1, description="附件文件ID")
    status: int = Field(default=0, ge=0, le=3, description="状态 0:待生成 1:生成中 2:已生成 3:生成失败")
    generator_id: int | None = Field(default=None, ge=1, description="生成人ID")
    description: str | None = Field(default=None, max_length=500, description="描述")

    @field_validator("generation_name")
    @classmethod
    def validate_generation_name(cls, value: str) -> str:
        value = value.strip()
        if not value:
            raise ValueError("任务名称不能为空")
        return value

    @field_validator("status")
    @classmethod
    def validate_status(cls, value: int) -> int:
        if value not in {0, 1, 2, 3}:
            raise ValueError("状态仅支持 0(待生成)、1(生成中)、2(已生成)、3(生成失败)")
        return value

    @field_validator("report_type")
    @classmethod
    def validate_report_type(cls, value: int) -> int:
        if value not in {1, 2}:
            raise ValueError("报告类型仅支持 1(能源报告) 或 2(光伏报告)")
        return value


class EnergyReportGenerationUpdateSchema(EnergyReportGenerationCreateSchema):
    """能源报告生成任务更新模型。"""


class EnergyReportGenerationOutSchema(EnergyReportGenerationCreateSchema, BaseSchema, UserBySchema, TenantBySchema):
    """能源报告生成任务响应模型。"""

    model_config = ConfigDict(from_attributes=True)

    template: EnergyReportTemplateOutSchema | None = Field(default=None, description="能源报告模板")
    file: FileOutSchema | None = Field(default=None, description="生成源文档")
    attachment_file: FileOutSchema | None = Field(default=None, description="附件文件")
    generator: CommonSchema | None = Field(default=None, description="生成人")
    template_name: str | None = Field(default=None, description="模板名称")
    generator_name: str | None = Field(default=None, description="生成人名称")
    report_file_url: str | None = Field(default=None, description="报告文档访问地址")
    report_file_original_name: str | None = Field(default=None, description="报告文档原始名称")
    file_url: str | None = Field(default=None, description="文档访问地址")
    original_name: str | None = Field(default=None, description="文档原始名称")
    attachment_file_url: str | None = Field(default=None, description="附件文件访问地址")
    attachment_file_original_name: str | None = Field(default=None, description="附件文件原始名称")
    attachment_url: str | None = Field(default=None, description="附件下载地址")
    attachment_original_name: str | None = Field(default=None, description="附件原始名称")


class EnergyReportGenerationStatsSchema(BaseModel):
    """能源报告生成任务统计模型。"""

    submitted_count: int = Field(default=0, description="提交任务数")
    generating_count: int = Field(default=0, description="生成中任务数")
    generated_count: int = Field(default=0, description="已生成任务数")
    pending_count: int = Field(default=0, description="待生成任务数")
    failed_count: int = Field(default=0, description="生成失败任务数")


class EnergyReportGenerationPageOutSchema(BaseModel):
    """能源报告生成任务分页和统计响应模型。"""

    page_no: int = Field(description="当前页码")
    page_size: int = Field(description="每页数量")
    total: int = Field(description="总数")
    has_next: bool = Field(description="是否有下一页")
    stats: EnergyReportGenerationStatsSchema = Field(description="统计数据")
    items: list[dict] = Field(default_factory=list, description="列表数据")


@dataclass
class EnergyReportGenerationQueryParam(BaseQueryParam, UserByQueryParam, TenantByQueryParam):
    """能源报告生成任务查询参数。"""

    generation_name: str | None = Query(None, description="任务名称")
    report_type: int | None = Query(None, ge=1, le=2, description="报告类型 1:能源报告 2:光伏报告")
    status: int | None = Query(None, ge=0, le=3, description="状态 0:待生成 1:生成中 2:已生成 3:生成失败")
    template_id: int | None = Query(None, ge=1, description="模板ID")
    generator_id: int | None = Query(None, ge=1, description="生成人ID")

    def __post_init__(self) -> None:
        if self.generation_name:
            self.generation_name = (QueueEnum.like.value, self.generation_name)
        if isinstance(self.report_type, int):
            self.report_type = (QueueEnum.eq.value, self.report_type)
        if isinstance(self.status, int):
            self.status = (QueueEnum.eq.value, self.status)
        if isinstance(self.template_id, int):
            self.template_id = (QueueEnum.eq.value, self.template_id)
        if isinstance(self.generator_id, int):
            self.generator_id = (QueueEnum.eq.value, self.generator_id)


ReportGenerationLogActionType = Literal["create_task", "start_generation", "generation_success", "generation_failed"]


class EnergyReportGenerationLogCreateSchema(BaseModel):
    """能源报告生成操作记录创建模型。"""

    report_generation_id: int = Field(..., ge=1, description="能源报告生成任务ID")
    action_type: ReportGenerationLogActionType = Field(..., description="操作类型")
    description: str | None = Field(default=None, max_length=500, description="操作描述")
    generation_name: str = Field(default="", description="任务名称，由后端填充")
    action_name: str = Field(default="", description="操作名称，由后端填充")


class EnergyReportGenerationLogOutSchema(EnergyReportGenerationLogCreateSchema, BaseSchema, UserBySchema, TenantBySchema):
    """能源报告生成操作记录响应模型。"""

    model_config = ConfigDict(from_attributes=True)

    generation: EnergyReportGenerationOutSchema | None = Field(default=None, description="生成任务")
    operator_id: int | None = Field(default=None, description="操作人ID")
    operator_name: str | None = Field(default=None, description="操作人名称")


@dataclass
class EnergyReportGenerationLogQueryParam(BaseQueryParam, UserByQueryParam, TenantByQueryParam):
    """能源报告生成操作记录查询参数。"""

    report_generation_id: int | None = Query(None, ge=1, description="生成任务ID")
    generation_name: str | None = Query(None, description="任务名称")
    action_type: ReportGenerationLogActionType | None = Query(None, description="操作类型")

    def __post_init__(self) -> None:
        if isinstance(self.report_generation_id, int):
            self.report_generation_id = (QueueEnum.eq.value, self.report_generation_id)
        if self.generation_name:
            self.generation_name = (QueueEnum.like.value, self.generation_name)
        if self.action_type:
            self.action_type = (QueueEnum.eq.value, self.action_type)