/**
 * L5 — pure first-run profile logic: validation mirrors of the backend invariants
 * (`validateProfile`/`isProfileValid`), `isRelativeSafe`, `isValidEnvVar`,
 * `defaultInjection`, `emptyCustomProfile`, and `parseArgs`.
 */
import { describe, it, expect } from "vitest";

import type { AgentProfile } from "@/domain";
import {
  defaultHttpChatConfig,
  defaultInjection,
  defaultOpenCodeConfig,
  emptyCustomProfile,
  isProfileValid,
  isRelativeSafe,
  isValidEnvVar,
  isValidHttpUrl,
  parseArgs,
  validateHttpChatConfig,
  validateOpenCodeConfig,
  validateProfile,
} from "./profile";

function base(overrides: Partial<AgentProfile> = {}): AgentProfile {
  return {
    id: "p1",
    name: "Claude",
    command: "claude",
    args: [],
    contextInjection: { strategy: "conventionFile", target: "CLAUDE.md" },
    detect: null,
    cwdTemplate: "{projectRoot}",
    ...overrides,
  };
}

describe("isRelativeSafe", () => {
  it("accepts a plain relative file name", () => {
    expect(isRelativeSafe("CLAUDE.md")).toBe(true);
    expect(isRelativeSafe("docs/AGENTS.md")).toBe(true);
  });
  it("rejects empty, absolute, traversal and drive paths", () => {
    expect(isRelativeSafe("")).toBe(false);
    expect(isRelativeSafe("/etc/passwd")).toBe(false);
    expect(isRelativeSafe("\\windows")).toBe(false);
    expect(isRelativeSafe("../secret")).toBe(false);
    expect(isRelativeSafe("a/../b")).toBe(false);
    expect(isRelativeSafe("C:/tmp")).toBe(false);
  });
});

describe("isValidEnvVar", () => {
  it("accepts valid identifiers", () => {
    expect(isValidEnvVar("AGENT_CONTEXT")).toBe(true);
    expect(isValidEnvVar("_x1")).toBe(true);
  });
  it("rejects invalid identifiers", () => {
    expect(isValidEnvVar("")).toBe(false);
    expect(isValidEnvVar("1ABC")).toBe(false);
    expect(isValidEnvVar("HAS-DASH")).toBe(false);
    expect(isValidEnvVar("has space")).toBe(false);
  });
});

describe("validateProfile / isProfileValid", () => {
  it("a well-formed profile is valid", () => {
    expect(validateProfile(base())).toEqual({});
    expect(isProfileValid(base())).toBe(true);
  });
  it("blank name and command are reported", () => {
    const errors = validateProfile(base({ name: "  ", command: "" }));
    expect(errors.name).toBeDefined();
    expect(errors.command).toBeDefined();
    expect(isProfileValid(base({ name: "" }))).toBe(false);
  });
  it("convention file target must be relative-safe", () => {
    const errors = validateProfile(
      base({ contextInjection: { strategy: "conventionFile", target: "../x" } }),
    );
    expect(errors.target).toBeDefined();
  });
  it("flag must be non-empty", () => {
    const errors = validateProfile(
      base({ contextInjection: { strategy: "flag", flag: "   " } }),
    );
    expect(errors.flag).toBeDefined();
  });
  it("env var must be a valid identifier", () => {
    const errors = validateProfile(
      base({ contextInjection: { strategy: "env", var: "1bad" } }),
    );
    expect(errors.var).toBeDefined();
  });
  it("stdin needs no extra field", () => {
    expect(
      isProfileValid(base({ contextInjection: { strategy: "stdin" } })),
    ).toBe(true);
  });
});

describe("isValidHttpUrl", () => {
  it("accepts http/https endpoints", () => {
    expect(isValidHttpUrl("http://localhost:11434/v1")).toBe(true);
    expect(isValidHttpUrl("https://lan.host:8080/v1")).toBe(true);
  });
  it("rejects empty, non-http and other schemes", () => {
    expect(isValidHttpUrl("")).toBe(false);
    expect(isValidHttpUrl("   ")).toBe(false);
    expect(isValidHttpUrl("ftp://host")).toBe(false);
    expect(isValidHttpUrl("localhost:11434")).toBe(false);
    // Leading whitespace fails the raw prefix check, mirroring the backend.
    expect(isValidHttpUrl("  http://host")).toBe(false);
  });
});

describe("validateHttpChatConfig", () => {
  it("a well-formed local model config is valid", () => {
    expect(validateHttpChatConfig(defaultHttpChatConfig())).toEqual({});
  });
  it("reports a bad endpoint scheme and an empty model", () => {
    const errors = validateHttpChatConfig({ endpoint: "ftp://x", model: "  " });
    expect(errors.endpoint).toBeDefined();
    expect(errors.model).toBeDefined();
  });
  it("apiKeyEnv must be an env var NAME, never a raw key", () => {
    // A plausible raw key contains characters illegal in an env var identifier.
    const withKey = validateHttpChatConfig({
      endpoint: "http://host",
      model: "m",
      apiKeyEnv: "sk-abc123",
    });
    expect(withKey.apiKeyEnv).toBeDefined();
    // A valid identifier passes; blank/undefined is allowed (optional).
    expect(
      validateHttpChatConfig({
        endpoint: "http://host",
        model: "m",
        apiKeyEnv: "OPENAI_API_KEY",
      }).apiKeyEnv,
    ).toBeUndefined();
    expect(
      validateHttpChatConfig({ endpoint: "http://host", model: "m" }).apiKeyEnv,
    ).toBeUndefined();
  });
  it("rejects zero / non-integer timeouts and tool-iteration guard", () => {
    const errors = validateHttpChatConfig({
      endpoint: "http://host",
      model: "m",
      requestTimeoutMs: 0,
      connectTimeoutMs: -1,
      maxToolIterations: 1.5,
    });
    expect(errors.requestTimeoutMs).toBeDefined();
    expect(errors.connectTimeoutMs).toBeDefined();
    expect(errors.maxToolIterations).toBeDefined();
  });
});

describe("validateProfile for openAiCompatible profiles", () => {
  function ollama(overrides: Partial<AgentProfile> = {}): AgentProfile {
    return base({
      name: "Ollama",
      command: "openai-compatible",
      structuredAdapter: "openAiCompatible",
      chatHttp: defaultHttpChatConfig(),
      ...overrides,
    });
  }
  it("the reference local-model profile is valid", () => {
    expect(validateProfile(ollama())).toEqual({});
    expect(isProfileValid(ollama())).toBe(true);
  });
  it("surfaces chatHttp field errors through the profile validator", () => {
    const errors = validateProfile(
      ollama({ chatHttp: { endpoint: "nope", model: "" } }),
    );
    expect(errors.endpoint).toBeDefined();
    expect(errors.model).toBeDefined();
    expect(isProfileValid(ollama({ chatHttp: { endpoint: "nope", model: "m" } }))).toBe(
      false,
    );
  });
  it("a missing chatHttp on an openAiCompatible profile is invalid", () => {
    const errors = validateProfile(ollama({ chatHttp: undefined }));
    expect(errors.endpoint).toBeDefined();
    expect(errors.model).toBeDefined();
  });
  it("does not touch validation of Claude/Codex (non-structured-http) profiles", () => {
    // A plain profile with no structuredAdapter never triggers chatHttp checks.
    expect(validateProfile(base())).toEqual({});
  });
});

describe("validateOpenCodeConfig", () => {
  it("a well-formed llama.cpp config is valid", () => {
    expect(validateOpenCodeConfig(defaultOpenCodeConfig())).toEqual({});
  });
  it("reports a bad base URL scheme and an empty model", () => {
    const errors = validateOpenCodeConfig({ baseURL: "ftp://x", model: "  " });
    expect(errors.baseURL).toBeDefined();
    expect(errors.model).toBeDefined();
  });
  it("an optional API key is free-form (no env-var-name constraint)", () => {
    // Unlike the openAiCompatible adapter, OpenCode carries the key itself.
    expect(
      validateOpenCodeConfig({
        baseURL: "http://localhost:8080/v1",
        apiKey: "sk-secret-123",
        model: "qwen3-coder-30b",
      }),
    ).toEqual({});
  });
});

describe("validateProfile for openCode profiles", () => {
  function opencode(overrides: Partial<AgentProfile> = {}): AgentProfile {
    return base({
      name: "OpenCode + llama.cpp",
      command: "opencode",
      structuredAdapter: "openCode",
      opencode: defaultOpenCodeConfig(),
      ...overrides,
    });
  }
  it("the reference llama.cpp profile is valid", () => {
    expect(validateProfile(opencode())).toEqual({});
    expect(isProfileValid(opencode())).toBe(true);
  });
  it("surfaces opencode field errors through the profile validator", () => {
    const errors = validateProfile(
      opencode({ opencode: { baseURL: "nope", model: "" } }),
    );
    expect(errors.baseURL).toBeDefined();
    expect(errors.model).toBeDefined();
    expect(
      isProfileValid(opencode({ opencode: { baseURL: "nope", model: "m" } })),
    ).toBe(false);
  });
  it("a missing opencode config on an openCode profile is invalid", () => {
    const errors = validateProfile(opencode({ opencode: undefined }));
    expect(errors.baseURL).toBeDefined();
    expect(errors.model).toBeDefined();
  });
});

describe("defaultInjection", () => {
  it("produces a sensible default per strategy", () => {
    expect(defaultInjection("conventionFile")).toEqual({
      strategy: "conventionFile",
      target: "CONTEXT.md",
    });
    expect(defaultInjection("flag")).toEqual({
      strategy: "flag",
      flag: "--context-file {path}",
    });
    expect(defaultInjection("env")).toEqual({
      strategy: "env",
      var: "AGENT_CONTEXT_FILE",
    });
    expect(defaultInjection("stdin")).toEqual({ strategy: "stdin" });
  });
});

describe("emptyCustomProfile", () => {
  it("is a blank, invalid draft with a fresh id", () => {
    const a = emptyCustomProfile();
    const b = emptyCustomProfile();
    expect(a.name).toBe("");
    expect(a.command).toBe("");
    expect(isProfileValid(a)).toBe(false);
    expect(a.id).not.toEqual(b.id);
  });
});

describe("parseArgs", () => {
  it("splits on whitespace, trims and drops empties", () => {
    expect(parseArgs("  --foo   bar\t baz ")).toEqual(["--foo", "bar", "baz"]);
    expect(parseArgs("")).toEqual([]);
    expect(parseArgs("   ")).toEqual([]);
  });
});