import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import { describe, expect, it } from "vitest";
import { ensureAuthProfileStore } from "./auth-profiles.js";
import { AUTH_STORE_VERSION, CODEX_CLI_PROFILE_ID } from "./auth-profiles/constants.js";
import { withTempHome } from "../../test/helpers/temp-home.js";

describe("ensureAuthProfileStore", () => {
  it("migrates legacy auth.json and deletes it (PR #368)", () => {
    const agentDir = fs.mkdtempSync(path.join(os.tmpdir(), "clawdbot-auth-profiles-"));
    try {
      const legacyPath = path.join(agentDir, "auth.json");
      fs.writeFileSync(
        legacyPath,
        `${JSON.stringify(
          {
            anthropic: {
              type: "oauth",
              provider: "anthropic",
              access: "access-token",
              refresh: "refresh-token",
              expires: Date.now() + 60_000,
            },
          },
          null,
          2,
        )}\n`,
        "utf8",
      );

      const store = ensureAuthProfileStore(agentDir);
      expect(store.profiles["anthropic:default"]).toMatchObject({
        type: "oauth",
        provider: "anthropic",
      });

      const migratedPath = path.join(agentDir, "auth-profiles.json");
      expect(fs.existsSync(migratedPath)).toBe(true);
      expect(fs.existsSync(legacyPath)).toBe(false);

      // idempotent
      const store2 = ensureAuthProfileStore(agentDir);
      expect(store2.profiles["anthropic:default"]).toBeDefined();
      expect(fs.existsSync(legacyPath)).toBe(false);
    } finally {
      fs.rmSync(agentDir, { recursive: true, force: true });
    }
  });

  it("merges main auth profiles into agent store and keeps agent overrides", () => {
    const root = fs.mkdtempSync(path.join(os.tmpdir(), "clawdbot-auth-merge-"));
    const previousAgentDir = process.env.CLAWDBOT_AGENT_DIR;
    const previousPiAgentDir = process.env.PI_CODING_AGENT_DIR;
    try {
      const mainDir = path.join(root, "main-agent");
      const agentDir = path.join(root, "agent-x");
      fs.mkdirSync(mainDir, { recursive: true });
      fs.mkdirSync(agentDir, { recursive: true });

      process.env.CLAWDBOT_AGENT_DIR = mainDir;
      process.env.PI_CODING_AGENT_DIR = mainDir;

      const mainStore = {
        version: AUTH_STORE_VERSION,
        profiles: {
          "openai:default": {
            type: "api_key",
            provider: "openai",
            key: "main-key",
          },
          "anthropic:default": {
            type: "api_key",
            provider: "anthropic",
            key: "main-anthropic-key",
          },
        },
      };
      fs.writeFileSync(
        path.join(mainDir, "auth-profiles.json"),
        `${JSON.stringify(mainStore, null, 2)}\n`,
        "utf8",
      );

      const agentStore = {
        version: AUTH_STORE_VERSION,
        profiles: {
          "openai:default": {
            type: "api_key",
            provider: "openai",
            key: "agent-key",
          },
        },
      };
      fs.writeFileSync(
        path.join(agentDir, "auth-profiles.json"),
        `${JSON.stringify(agentStore, null, 2)}\n`,
        "utf8",
      );

      const store = ensureAuthProfileStore(agentDir);
      expect(store.profiles["anthropic:default"]).toMatchObject({
        type: "api_key",
        provider: "anthropic",
        key: "main-anthropic-key",
      });
      expect(store.profiles["openai:default"]).toMatchObject({
        type: "api_key",
        provider: "openai",
        key: "agent-key",
      });
    } finally {
      if (previousAgentDir === undefined) {
        delete process.env.CLAWDBOT_AGENT_DIR;
      } else {
        process.env.CLAWDBOT_AGENT_DIR = previousAgentDir;
      }
      if (previousPiAgentDir === undefined) {
        delete process.env.PI_CODING_AGENT_DIR;
      } else {
        process.env.PI_CODING_AGENT_DIR = previousPiAgentDir;
      }
      fs.rmSync(root, { recursive: true, force: true });
    }
  });

  it("drops codex-cli from merged store when a custom openai-codex profile matches", async () => {
    await withTempHome(async (tempHome) => {
      const root = fs.mkdtempSync(path.join(os.tmpdir(), "clawdbot-auth-dedup-merge-"));
      const previousAgentDir = process.env.CLAWDBOT_AGENT_DIR;
      const previousPiAgentDir = process.env.PI_CODING_AGENT_DIR;
      try {
        const mainDir = path.join(root, "main-agent");
        const agentDir = path.join(root, "agent-x");
        fs.mkdirSync(mainDir, { recursive: true });
        fs.mkdirSync(agentDir, { recursive: true });

        process.env.CLAWDBOT_AGENT_DIR = mainDir;
        process.env.PI_CODING_AGENT_DIR = mainDir;
        process.env.HOME = tempHome;

        fs.writeFileSync(
          path.join(mainDir, "auth-profiles.json"),
          `${JSON.stringify(
            {
              version: AUTH_STORE_VERSION,
              profiles: {
                [CODEX_CLI_PROFILE_ID]: {
                  type: "oauth",
                  provider: "openai-codex",
                  access: "shared-access-token",
                  refresh: "shared-refresh-token",
                  expires: Date.now() + 3600000,
                },
              },
            },
            null,
            2,
          )}\n`,
          "utf8",
        );

        fs.writeFileSync(
          path.join(agentDir, "auth-profiles.json"),
          `${JSON.stringify(
            {
              version: AUTH_STORE_VERSION,
              profiles: {
                "openai-codex:my-custom-profile": {
                  type: "oauth",
                  provider: "openai-codex",
                  access: "shared-access-token",
                  refresh: "shared-refresh-token",
                  expires: Date.now() + 3600000,
                },
              },
            },
            null,
            2,
          )}\n`,
          "utf8",
        );

        const store = ensureAuthProfileStore(agentDir);
        expect(store.profiles[CODEX_CLI_PROFILE_ID]).toBeUndefined();
        expect(store.profiles["openai-codex:my-custom-profile"]).toBeDefined();
      } finally {
        if (previousAgentDir === undefined) {
          delete process.env.CLAWDBOT_AGENT_DIR;
        } else {
          process.env.CLAWDBOT_AGENT_DIR = previousAgentDir;
        }
        if (previousPiAgentDir === undefined) {
          delete process.env.PI_CODING_AGENT_DIR;
        } else {
          process.env.PI_CODING_AGENT_DIR = previousPiAgentDir;
        }
        fs.rmSync(root, { recursive: true, force: true });
      }
    });
  });
});