from __future__ import annotations

import json
from pathlib import Path

from didactopus.notebook_page import (
    build_notebook_page_from_groundrecall_bundle,
    export_notebook_page_from_groundrecall_bundle,
)


def _sample_bundle() -> dict:
    return {
        "bundle_kind": "groundrecall_query_bundle",
        "concept": {
            "concept_id": "concept::natural-selection",
            "title": "Natural Selection",
            "description": "Differential survival and reproduction.",
            "aliases": ["selection"],
        },
        "relevant_claims": [
            {"claim_id": "clm_001", "claim_text": "Selection can change trait frequencies."},
            {"claim_id": "clm_002", "claim_text": "Selection depends on heritable variation."},
        ],
        "relations": [
            {
                "relation_id": "rel_001",
                "source_id": "concept::variation",
                "target_id": "concept::natural-selection",
                "relation_type": "prerequisite",
            },
            {
                "relation_id": "rel_002",
                "source_id": "concept::natural-selection",
                "target_id": "concept::adaptation",
                "relation_type": "historical_successor",
            },
            {
                "relation_id": "rel_003",
                "source_id": "concept::natural-selection",
                "target_id": "concept::common-descent",
                "relation_type": "supports",
            },
        ],
        "related_concepts": [
            {
                "concept_id": "concept::variation",
                "title": "Variation",
                "description": "Differences among individuals.",
            },
            {
                "concept_id": "concept::adaptation",
                "title": "Adaptation",
                "description": "Traits fit to local conditions.",
            },
            {
                "concept_id": "concept::common-descent",
                "title": "Common Descent",
                "description": "Shared ancestry of organisms.",
            },
        ],
        "supporting_observations": [
            {
                "observation_id": "obs_001",
                "text": "Population differences can affect survival.",
                "origin_path": "texts/futuyma/ch1.md",
                "grounding_status": "grounded",
            }
        ],
        "source_artifacts": [
            {
                "artifact_id": "art_001",
                "artifact_kind": "compiled_page",
                "title": "Evolutionary Biology Chapter 1",
                "path": "texts/futuyma/ch1.md",
            }
        ],
        "review_candidates": [
            {
                "candidate_id": "concept::natural-selection",
                "finding_codes": ["bridge_concept"],
                "rationale": "Natural Selection | lane=conflict_resolution | priority=12 | graph=bridge_concept",
            }
        ],
        "suggested_next_actions": ["Inspect supporting observations before export."],
    }


def test_build_notebook_page_buckets_graph_navigation() -> None:
    page = build_notebook_page_from_groundrecall_bundle(_sample_bundle())

    assert page["page_kind"] == "didactopus_notebook_page"
    assert page["concept"]["title"] == "Natural Selection"
    assert page["summary"]["claim_count"] == 2
    assert page["graph_navigation"]["antecedent_concepts"][0]["title"] == "Variation"
    assert page["graph_navigation"]["derivative_concepts"][0]["title"] == "Adaptation"
    assert page["graph_navigation"]["closer_concepts"][0]["title"] == "Common Descent"
    assert page["supporting_sources"][0]["supporting_observation_count"] == 1
    assert page["review_context"]["graph_codes"] == ["bridge_concept"]
    assert page["illustration_opportunities"]


def test_export_notebook_page_writes_json(tmp_path: Path) -> None:
    bundle_path = tmp_path / "groundrecall_query_bundle.json"
    out_path = tmp_path / "notebook_page.json"
    bundle_path.write_text(json.dumps(_sample_bundle()), encoding="utf-8")

    payload = export_notebook_page_from_groundrecall_bundle(bundle_path, out_path)

    assert out_path.exists()
    assert payload["page_path"].endswith("notebook_page.json")
    written = json.loads(out_path.read_text(encoding="utf-8"))
    assert written["concept"]["concept_id"] == "concept::natural-selection"