# ============================================================
# 主数据表模型（moduleId: db-models, 可重生 ✅）
# 设计：projects 多项目隔离；master_records 宽表承载 world 主数据键
#   （payload=完整记录 JSON，投影零损耗；code/name 建索引供查询）；
# routing_templates 行业工艺路线模板库（平台级，跨项目共享）。
# ============================================================
from __future__ import annotations

from sqlalchemy import (
    JSON, BigInteger, Boolean, Float, ForeignKey, Index, Integer, String, Text,
    UniqueConstraint,
)
from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column


class Base(DeclarativeBase):
    pass


class TenantAuditMixin:
    tenant_uuid: Mapped[str] = mapped_column(String(32), nullable=False, index=True, default="platform")
    creator_id: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
    updater_id: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
    updated_at: Mapped[str] = mapped_column(String(32), default="")
    deleted: Mapped[int] = mapped_column(BigInteger, nullable=False, default=0)


class Project(TenantAuditMixin, Base):
    """项目/租户：康尼、演示厂……主数据按项目隔离。"""
    __tablename__ = "projects"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    code: Mapped[str] = mapped_column(String(64), index=True)
    name: Mapped[str] = mapped_column(String(128), default="")
    industry: Mapped[str] = mapped_column(String(64), default="machining")
    active: Mapped[bool] = mapped_column(Boolean, default=False)
    owner_user_id: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
    data_version: Mapped[int] = mapped_column(Integer, default=0)
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        UniqueConstraint("tenant_uuid", "code", "deleted", name="uk_projects_tenant_code"),
    )


class MasterRecord(TenantAuditMixin, Base):
    """主数据宽表：一行 = world 某主数据表的一条记录（payload 全量 JSON）。

    table_key 对齐 world 键名（factories/routingSteps/flexRoutings/salesOrders…），
    投影时按 (project_id, table_key, seq) 还原顺序，保证与导入时零差异。
    """
    __tablename__ = "master_records"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    project_id: Mapped[int] = mapped_column(ForeignKey("projects.id"), index=True)
    table_key: Mapped[str] = mapped_column(String(64), index=True)
    seq: Mapped[int] = mapped_column(Integer, default=0)
    rec_id: Mapped[str] = mapped_column(String(64), default="")   # 原记录 id/code（辅助定位）
    code: Mapped[str] = mapped_column(String(128), default="", index=True)
    name: Mapped[str] = mapped_column(String(256), default="")
    payload: Mapped[dict] = mapped_column(JSON)

    __table_args__ = (
        Index("ix_master_tenant_project_table", "tenant_uuid", "project_id", "table_key"),
    )


class ProjectSetting(TenantAuditMixin, Base):
    """项目级字典配置：scheduleParams / constraintProfile / flexParams。"""
    __tablename__ = "project_settings"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    project_id: Mapped[int] = mapped_column(ForeignKey("projects.id"), index=True)
    key: Mapped[str] = mapped_column(String(64), index=True)
    payload: Mapped[dict] = mapped_column(JSON)

    __table_args__ = (
        Index("ix_settings_tenant_project_key", "tenant_uuid", "project_id", "key", unique=True),
    )


class RoutingTemplate(TenantAuditMixin, Base):
    """行业工艺路线模板（平台级）：机加工车/铣/钻/磨/装配等生成模式的结构化形态。"""
    __tablename__ = "routing_templates"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    code: Mapped[str] = mapped_column(String(64), index=True)
    name: Mapped[str] = mapped_column(String(128))
    industry: Mapped[str] = mapped_column(String(64), default="machining")
    category: Mapped[str] = mapped_column(String(64), default="")      # 车削/铣削/装配…
    keywords: Mapped[str] = mapped_column(Text, default="")            # 逗号分隔，检索匹配
    description: Mapped[str] = mapped_column(Text, default="")
    asset_id: Mapped[str] = mapped_column(String(32), default="")      # 关联知识资产（RAG 出处）
    source: Mapped[str] = mapped_column(String(128), default="builtin")

    __table_args__ = (
        UniqueConstraint("tenant_uuid", "code", "deleted", name="uk_routing_template_tenant_code"),
    )


class RoutingTemplateStep(TenantAuditMixin, Base):
    """模板工步：含推荐工时区间与设备类型（供小工厂一键生成路线）。"""
    __tablename__ = "routing_template_steps"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    template_id: Mapped[int] = mapped_column(ForeignKey("routing_templates.id"), index=True)
    seq: Mapped[int] = mapped_column(Integer)
    operation_code: Mapped[str] = mapped_column(String(64))
    operation_name: Mapped[str] = mapped_column(String(128))
    equipment_type: Mapped[str] = mapped_column(String(128), default="")
    std_min_low: Mapped[float] = mapped_column(Float, default=0)       # 推荐单件工时下限（分钟）
    std_min_high: Mapped[float] = mapped_column(Float, default=0)      # 上限
    setup_min: Mapped[float] = mapped_column(Float, default=10)
    changeover_min: Mapped[float] = mapped_column(Float, default=10)
    note: Mapped[str] = mapped_column(Text, default="")


class WorkspaceProject(TenantAuditMixin, Base):
    __tablename__ = "aps_workspace_projects"
    id: Mapped[str] = mapped_column(String(64), primary_key=True)
    name: Mapped[str] = mapped_column(String(128), default="")
    scope_label: Mapped[str] = mapped_column(String(128), default="未设定作用域")
    owner_user_id: Mapped[int] = mapped_column(BigInteger, nullable=False, index=True)
    work_dir: Mapped[str] = mapped_column(String(512), default="")
    archived: Mapped[bool] = mapped_column(Boolean, default=False)
    data_version: Mapped[int] = mapped_column(Integer, default=0)
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        Index("ix_workspace_projects_tenant_owner", "tenant_uuid", "owner_user_id", "deleted"),
    )


class ProjectMember(TenantAuditMixin, Base):
    __tablename__ = "aps_project_members"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    project_id: Mapped[str] = mapped_column(ForeignKey("aps_workspace_projects.id"), index=True)
    user_id: Mapped[int] = mapped_column(BigInteger, nullable=False, index=True)
    role: Mapped[str] = mapped_column(String(16), nullable=False, default="viewer")
    status: Mapped[str] = mapped_column(String(16), nullable=False, default="active")
    invited_by: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        UniqueConstraint("tenant_uuid", "project_id", "user_id", "deleted", name="uk_project_member"),
        Index("ix_project_member_access", "tenant_uuid", "user_id", "status", "deleted"),
    )


class UserWorkspace(TenantAuditMixin, Base):
    __tablename__ = "aps_user_workspaces"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    user_id: Mapped[int] = mapped_column(BigInteger, nullable=False)
    active_project_id: Mapped[str] = mapped_column(String(64), default="__personal__")
    active_session_id: Mapped[str | None] = mapped_column(String(64), nullable=True)
    settings: Mapped[dict] = mapped_column(JSON, default=dict)
    version: Mapped[int] = mapped_column(Integer, default=0)
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        UniqueConstraint("tenant_uuid", "user_id", "deleted", name="uk_user_workspace"),
    )


class ChatSessionRecord(TenantAuditMixin, Base):
    __tablename__ = "aps_chat_sessions"
    id: Mapped[str] = mapped_column(String(64), primary_key=True)
    project_id: Mapped[str | None] = mapped_column(String(64), nullable=True, index=True)
    owner_user_id: Mapped[int] = mapped_column(BigInteger, nullable=False, index=True)
    scope: Mapped[str] = mapped_column(String(16), nullable=False, default="personal")
    title: Mapped[str] = mapped_column(String(200), default="新话题")
    status: Mapped[str] = mapped_column(String(16), default="running")
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        Index("ix_chat_session_personal", "tenant_uuid", "owner_user_id", "scope", "deleted"),
        Index("ix_chat_session_project", "tenant_uuid", "project_id", "scope", "deleted"),
    )


class ChatMessageRecord(TenantAuditMixin, Base):
    __tablename__ = "aps_chat_messages"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    session_id: Mapped[str] = mapped_column(ForeignKey("aps_chat_sessions.id"), index=True)
    sender_user_id: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
    seq: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    payload: Mapped[dict] = mapped_column(JSON)
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        Index("ix_chat_message_tenant_session_seq", "tenant_uuid", "session_id", "seq", unique=True),
    )


class ProjectFileRecord(TenantAuditMixin, Base):
    __tablename__ = "aps_project_files"
    id: Mapped[str] = mapped_column(String(64), primary_key=True)
    project_id: Mapped[str] = mapped_column(ForeignKey("aps_workspace_projects.id"), index=True)
    name: Mapped[str] = mapped_column(String(256), default="")
    kind: Mapped[str] = mapped_column(String(32), default="other")
    note: Mapped[str] = mapped_column(Text, default="")
    storage_key: Mapped[str] = mapped_column(String(512), default="")
    created_at: Mapped[str] = mapped_column(String(32), default="")


class ScheduleRun(TenantAuditMixin, Base):
    __tablename__ = "aps_schedule_runs"
    id: Mapped[str] = mapped_column(String(64), primary_key=True)
    project_id: Mapped[str] = mapped_column(ForeignKey("aps_workspace_projects.id"), index=True)
    triggered_by: Mapped[int] = mapped_column(BigInteger, nullable=False)
    input_version: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    status: Mapped[str] = mapped_column(String(24), nullable=False, default="pending")
    started_at: Mapped[str] = mapped_column(String(32), default="")
    finished_at: Mapped[str] = mapped_column(String(32), default="")
    error: Mapped[str] = mapped_column(Text, default="")
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        Index("ix_schedule_run_project_status", "tenant_uuid", "project_id", "status"),
    )


class ScheduleResult(TenantAuditMixin, Base):
    __tablename__ = "aps_schedule_results"
    id: Mapped[str] = mapped_column(String(64), primary_key=True)
    project_id: Mapped[str] = mapped_column(ForeignKey("aps_workspace_projects.id"), index=True)
    run_id: Mapped[str] = mapped_column(ForeignKey("aps_schedule_runs.id"), index=True)
    input_version: Mapped[int] = mapped_column(Integer, nullable=False)
    result_version: Mapped[str] = mapped_column(String(64), nullable=False)
    payload: Mapped[dict] = mapped_column(JSON)
    created_at: Mapped[str] = mapped_column(String(32), default="")


class AuditEventRecord(TenantAuditMixin, Base):
    __tablename__ = "aps_audit_events"
    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    actor_user_id: Mapped[int] = mapped_column(BigInteger, nullable=False)
    project_id: Mapped[str | None] = mapped_column(String(64), nullable=True, index=True)
    action: Mapped[str] = mapped_column(String(128), nullable=False)
    resource_type: Mapped[str] = mapped_column(String(64), nullable=False)
    resource_id: Mapped[str] = mapped_column(String(128), default="")
    detail: Mapped[dict] = mapped_column(JSON, default=dict)
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        Index("ix_audit_tenant_actor_created", "tenant_uuid", "actor_user_id", "created_at"),
    )


class LicenseActivation(TenantAuditMixin, Base):
    """A server-validated desktop entitlement bound to one installation."""

    __tablename__ = "aps_license_activations"
    id: Mapped[str] = mapped_column(String(64), primary_key=True)
    code_hash: Mapped[str] = mapped_column(String(64), nullable=False)
    code_hint: Mapped[str] = mapped_column(String(32), default="")
    device_hash: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
    user_id: Mapped[int] = mapped_column(BigInteger, nullable=False, index=True)
    license_type: Mapped[str] = mapped_column(String(16), nullable=False)
    status: Mapped[str] = mapped_column(String(16), nullable=False, default="active")
    activated_at: Mapped[int] = mapped_column(BigInteger, nullable=False)
    expires_at: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
    last_seen_at: Mapped[int] = mapped_column(BigInteger, nullable=False)
    revoked_at: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
    created_at: Mapped[str] = mapped_column(String(32), default="")

    __table_args__ = (
        UniqueConstraint("code_hash", "deleted", name="uk_license_activation_code"),
        Index("ix_license_device_status", "device_hash", "status", "deleted"),
        Index("ix_license_tenant_user", "tenant_uuid", "user_id", "deleted"),
    )