import json
from promptledger_verifiable_provenance_and_l import (
    LocalProvenanceBlock,
    MerkleAuditLog,
    DeltaSync,
    BlenderAdapter,
    FigmaAdapter,
    attach_signature,
)


def test_merkle_audit_log_basic():
    log = MerkleAuditLog()
    blk1 = LocalProvenanceBlock("alice", "Blender", "create_asset", {"asset_type": "mesh"}, "CC-BY-4.0")
    attach_signature(blk1)
    log.append(blk1)

    blk2 = LocalProvenanceBlock("bob", "Figma", "update_design", {"frame": "Intro"}, "MIT")
    attach_signature(blk2)
    log.append(blk2)

    root = log.get_root()
    assert isinstance(root, str) and len(root) > 0
    # Recompute by creating a new log with same blocks and ensure root matches
    log2 = MerkleAuditLog()
    log2.append(blk1)
    log2.append(blk2)
    assert log2.get_root() == root


def test_delta_sync_roundtrip():
    log = MerkleAuditLog()
    delta_sync = DeltaSync(log)

    a = LocalProvenanceBlock("carol", "Blender", "create_asset", {"asset_type": "texture"}, "CC0")
    attach_signature(a)
    log.append(a)

    delta1 = delta_sync.create_delta()
    # Simulate recipient with empty log getting delta
    recipient_log = MerkleAuditLog()
    recipient_sync = DeltaSync(recipient_log)
    recipient_sync.apply_delta(delta1)
    assert recipient_log.get_root() == log.get_root()


def test_adapters_emit_and_sign():
    blender = BlenderAdapter("dave")
    figma = FigmaAdapter("eve")

    b = blender.emit()
    attach_signature(b)
    f = figma.emit()
    attach_signature(f)

    assert b.tool == "Blender" and b.author == "dave"
    assert f.tool == "Figma" and f.author == "eve"