import type Database from "bun:sqlite";

import { describe, expect, test } from "bun:test";

import {
  approveMaterial,
  createMaterial,
  deleteMaterial,
  discardMaterial,
  getMaterial,
  retryMaterial,
} from "../../../src/server/db/materials";
import { createProject } from "../../../src/server/db/projects";
import { createNoopLogger } from "../../../src/server/logger";
import { createMigratedTestDatabase } from "../../helpers";

const LOG = createNoopLogger();

function withMaterialsDb(callback: (db: Database) => void): void {
  const handle = createMigratedTestDatabase("materials-dao-test");
  try {
    callback(handle.db);
    handle.close();
  } finally {
    handle.cleanup();
  }
}

function setupProject(db: Database, name = "测试项目"): string {
  const result = createProject(db, { name }, LOG);
  if ("error" in result) throw new Error(result.error);
  return result.project.id;
}

function setupMaterial(
  db: Database,
  projectId: string,
  overrides: Partial<{
    associatedDate: string;
    description: string;
    materialType: "general" | "meeting";
  }> = {},
): string {
  const result = createMaterial(
    db,
    projectId,
    {
      associatedDate: overrides.associatedDate ?? "2024-01-15",
      description: overrides.description ?? "测试素材",
      materialType: overrides.materialType,
    },
    LOG,
  );
  if ("error" in result) throw new Error(result.error);
  return result.material.id;
}

function setMaterialStatus(
  db: Database,
  materialId: string,
  status: "approved" | "discarded" | "failed" | "pending" | "processing" | "review",
  processedContent: string | null = null,
): void {
  db.prepare("UPDATE materials SET status = ?, processed_content = ?, updated_at = ? WHERE id = ?").run(
    status,
    processedContent,
    new Date().toISOString(),
    materialId,
  );
}

describe("素材数据访问层", () => {
  describe("createMaterial", () => {
    test("默认 materialType 为 general", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const result = createMaterial(db, projectId, { associatedDate: "2024-01-15", description: "测试" }, LOG);
        expect("error" in result).toBe(false);
        const material = (result as { material: { materialType: string } }).material;
        expect(material.materialType).toBe("general");
      });
    });

    test("显式指定 materialType 为 meeting", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const result = createMaterial(
          db,
          projectId,
          { associatedDate: "2024-01-15", description: "会议素材", materialType: "meeting" },
          LOG,
        );
        expect("error" in result).toBe(false);
        const material = (result as { material: { materialType: string } }).material;
        expect(material.materialType).toBe("meeting");
      });
    });

    test("非法 materialType 返回 400", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const result = createMaterial(
          db,
          projectId,
          {
            associatedDate: "2024-01-15",
            description: "测试",
            materialType: "invalid" as "general",
          },
          LOG,
        );
        expect("error" in result).toBe(true);
        expect((result as { status: number }).status).toBe(400);
      });
    });
  });

  describe("getMaterial", () => {
    test("返回包含 materialType 和 processedContent 字段", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        const result = getMaterial(db, projectId, materialId);
        expect("error" in result).toBe(false);
        const material = (result as { material: { materialType: string; processedContent: null | string } }).material;
        expect(material.materialType).toBe("general");
        expect(material.processedContent).toBeNull();
      });
    });
  });

  describe("approveMaterial", () => {
    test("review 状态通过成功", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        setMaterialStatus(db, materialId, "review");

        const result = approveMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(false);
        const material = (result as { material: { status: string } }).material;
        expect(material.status).toBe("approved");
      });
    });

    test("非 review 状态拒绝（pending）", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);

        const result = approveMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(true);
        expect((result as { status: number }).status).toBe(409);
      });
    });

    test("素材不存在返回 404", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const result = approveMaterial(db, projectId, "nonexistent", LOG);
        expect("error" in result).toBe(true);
        expect((result as { status: number }).status).toBe(404);
      });
    });
  });

  describe("discardMaterial", () => {
    test("review 状态放弃成功", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        setMaterialStatus(db, materialId, "review");

        const result = discardMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(false);
        const material = (result as { material: { status: string } }).material;
        expect(material.status).toBe("discarded");
      });
    });

    test("非 review 状态拒绝", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);

        const result = discardMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(true);
        expect((result as { status: number }).status).toBe(409);
      });
    });
  });

  describe("retryMaterial", () => {
    test("failed 状态重试成功并清空 processedContent", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        setMaterialStatus(db, materialId, "failed", "之前的内容");

        const result = retryMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(false);
        const material = (result as { material: { processedContent: null | string; status: string } }).material;
        expect(material.status).toBe("pending");
        expect(material.processedContent).toBeNull();
      });
    });

    test("非 failed 状态拒绝", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        setMaterialStatus(db, materialId, "review");

        const result = retryMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(true);
        expect((result as { status: number }).status).toBe(409);
      });
    });
  });

  describe("deleteMaterial", () => {
    test("processing 状态禁止删除返回 409", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        setMaterialStatus(db, materialId, "processing");

        const result = deleteMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(true);
        expect((result as { status: number }).status).toBe(409);
      });
    });

    test("pending 状态可正常删除", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);

        const result = deleteMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(false);
      });
    });

    test("review 状态可正常删除", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        setMaterialStatus(db, materialId, "review");

        const result = deleteMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(false);
      });
    });

    test("failed 状态可正常删除", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        setMaterialStatus(db, materialId, "failed");

        const result = deleteMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(false);
      });
    });

    test("approved 状态可正常删除", () => {
      withMaterialsDb((db) => {
        const projectId = setupProject(db);
        const materialId = setupMaterial(db, projectId);
        setMaterialStatus(db, materialId, "approved");

        const result = deleteMaterial(db, projectId, materialId, LOG);
        expect("error" in result).toBe(false);
      });
    });
  });
});