from __future__ import annotations

from pathlib import Path
import unittest

from agent_builder.builder import (
    BUILDER_SKILL_SOURCE,
    SYSTEM_PROMPT,
    _builder_skill_files,
    _with_builder_skills,
)
from deepagents.backends import StateBackend


class BuilderPromptTests(unittest.TestCase):
    def test_outer_agent_uses_500_recursion_limit(self) -> None:
        agent_source = Path(__file__).resolve().parents[1].joinpath("agent.py").read_text()

        self.assertIn("DEEPAGENTS_RECURSION_LIMIT = 500", agent_source)
        self.assertIn(
            "config={\"recursion_limit\": DEEPAGENTS_RECURSION_LIMIT}",
            agent_source,
        )

    def test_prompt_requires_resource_mirror_for_heavy_agents(self) -> None:
        self.assertIn("declare resources in BOTH places", SYSTEM_PROMPT)
        self.assertIn("resources = Resources", SYSTEM_PROMPT)
        self.assertIn("runtime:", SYSTEM_PROMPT)
        self.assertIn("max_runtime_seconds", SYSTEM_PROMPT)

    def test_prompt_requires_live_schema_check_and_manim_contract(self) -> None:
        self.assertIn("live_skills[].input_schema", SYSTEM_PROMPT)
        self.assertIn("class GeneratedDeck(Slide)", SYSTEM_PROMPT)
        self.assertIn("manim-slides render --CE -ql", SYSTEM_PROMPT)
        self.assertIn("render: bool = False", SYSTEM_PROMPT)
        self.assertIn('config={"recursion_limit": 500}', SYSTEM_PROMPT)

    def test_prompt_requires_workspace_mounted_execution_for_outputs(self) -> None:
        self.assertIn("ctx.workspace_shell", SYSTEM_PROMPT)
        self.assertIn("ctx.workspace_python", SYSTEM_PROMPT)
        self.assertIn("/workspace/outputs/...", SYSTEM_PROMPT)
        self.assertIn("not workspace-mounted", SYSTEM_PROMPT)

    def test_prompt_and_backend_load_packaged_builder_skills(self) -> None:
        expected = {
            "deepagent-agent-design",
            "a2apack-agent-authoring",
            "deepagents-implementation-patterns",
            "workspace-artifact-safety",
            "agent-quality-review",
        }
        for skill_name in expected:
            self.assertIn(skill_name, SYSTEM_PROMPT)
        self.assertIn("deepagent-agent-design", SYSTEM_PROMPT)
        self.assertIn("write_agent_skill", SYSTEM_PROMPT)
        self.assertIn("workspace_access = WorkspaceAccess.dynamic", SYSTEM_PROMPT)

        files = _builder_skill_files()
        self.assertTrue(
            {path.split("/", 1)[0] for path in files}.issuperset(expected)
        )
        self.assertIn("skills=[RUNTIME_SKILLS_ROOT]", files["deepagent-agent-design/SKILL.md"])
        self.assertIn("from a2a_pack import", files["a2apack-agent-authoring/SKILL.md"])
        self.assertIn("ctx.workspace_shell", files["a2apack-agent-authoring/SKILL.md"])
        self.assertIn("create_deep_agent", files["deepagents-implementation-patterns/SKILL.md"])
        self.assertIn('config={"recursion_limit": 500}', files["deepagents-implementation-patterns/SKILL.md"])
        self.assertIn("ctx.write_artifact", files["workspace-artifact-safety/SKILL.md"])
        self.assertIn("ctx.workspace_shell", files["workspace-artifact-safety/SKILL.md"])
        self.assertIn("/workspace/outputs/...", files["workspace-artifact-safety/SKILL.md"])
        self.assertIn("live_skills[].input_schema", files["agent-quality-review/SKILL.md"])
        self.assertIn("ctx.workspace_python", files["agent-quality-review/SKILL.md"])

        backend = _with_builder_skills(StateBackend())
        listing = backend.ls(BUILDER_SKILL_SOURCE)
        paths = [entry["path"] for entry in (listing.entries or [])]
        for skill_name in expected:
            self.assertIn(f"{BUILDER_SKILL_SOURCE}{skill_name}/", paths)