import json
from workbench.project import (
    create_project, project_exists, project_path,
    append_log, read_log, list_projects, log_session_event,
    write_server_info, read_server_info, clear_server_info,
    WORKBENCH_DIR,
)


def test_create_project(tmp_workbench):
    path = create_project("io102", "Heathkit IO-102", workbench_dir=tmp_workbench)
    assert path.exists()
    assert (path / "index.html").exists()
    assert (path / "session.md").exists()
    assert (path / "session.jsonl").exists()
    assert (path / "cost-log.jsonl").exists()
    assert (path / "state.json").exists()
    assert (path / "assets").is_dir()
    md = (path / "session.md").read_text()
    assert "Heathkit IO-102" in md


def test_create_project_idempotent(tmp_workbench):
    create_project("io102", "First", workbench_dir=tmp_workbench)
    append_log("io102", "test entry", workbench_dir=tmp_workbench)
    create_project("io102", "Second", workbench_dir=tmp_workbench)
    entries = read_log("io102", workbench_dir=tmp_workbench)
    assert len(entries) == 1


def test_project_exists(tmp_workbench):
    assert not project_exists("io102", workbench_dir=tmp_workbench)
    create_project("io102", "Test", workbench_dir=tmp_workbench)
    assert project_exists("io102", workbench_dir=tmp_workbench)


def test_append_and_read_log(tmp_workbench):
    create_project("io102", "Test", workbench_dir=tmp_workbench)
    append_log("io102", "R412 measured 1.05M", data={"ohms": 1050000}, workbench_dir=tmp_workbench)
    append_log("io102", "R413 OK", workbench_dir=tmp_workbench)
    entries = read_log("io102", tail=10, workbench_dir=tmp_workbench)
    assert len(entries) == 2
    assert entries[0]["entry"] == "R412 measured 1.05M"
    assert entries[0]["ohms"] == 1050000


def test_read_log_tail(tmp_workbench):
    create_project("io102", "Test", workbench_dir=tmp_workbench)
    for i in range(30):
        append_log("io102", f"Entry {i}", workbench_dir=tmp_workbench)
    entries = read_log("io102", tail=5, workbench_dir=tmp_workbench)
    assert len(entries) == 5
    assert entries[0]["entry"] == "Entry 25"


def test_list_projects(tmp_workbench):
    assert list_projects(workbench_dir=tmp_workbench) == []
    create_project("io102", "First", workbench_dir=tmp_workbench)
    create_project("psu-rebuild", "Second", workbench_dir=tmp_workbench)
    projects = list_projects(workbench_dir=tmp_workbench)
    assert [p["name"] for p in projects] == ["io102", "psu-rebuild"]


def test_log_session_event(tmp_workbench):
    create_project("io102", "Test", workbench_dir=tmp_workbench)
    log_session_event("io102", "session_start", workbench_dir=tmp_workbench)
    cost_log = (tmp_workbench / "io102" / "cost-log.jsonl").read_text().strip()
    entry = json.loads(cost_log.split("\n")[-1])
    assert entry["event"] == "session_start"


def test_server_info_write_read_clear(tmp_workbench):
    create_project("io102", "Test", workbench_dir=tmp_workbench)
    write_server_info("io102", pid=12345, port=8070, workbench_dir=tmp_workbench)
    info = read_server_info("io102", workbench_dir=tmp_workbench)
    assert info is not None
    assert info["pid"] == 12345
    assert info["port"] == 8070
    assert "started" in info
    clear_server_info("io102", workbench_dir=tmp_workbench)
    assert read_server_info("io102", workbench_dir=tmp_workbench) is None