import logging
import os


def run_jt_init(ctx, dirname=None, journalname=None, title=None):
    runcmd_run = globals()["runcmd_run"]
    runcmd_run(ctx, [_binary("jt"), "init", dirname, journalname, title])


def run_jt_list_journals(ctx):
    runcmd_run = globals()["runcmd_run"]
    runcmd_run(ctx, [_binary("jt"), "list-journals"])


def run_jt_is_journal(ctx, dirname=None):
    runcmd_run = globals()["runcmd_run"]
    runcmd_run(ctx, [_binary("jt"), "is-journal", dirname])


def run_jt_new(ctx, title=None, dirname=None):
    runcmd_run = globals()["runcmd_run"]
    runcmd_run(
        ctx, [_binary("jt"), "new", title, "--dirname", dirname, "--editor=none"]
    )


def run_jt_finish(ctx, dirname=None):
    runcmd_run = globals()["runcmd_run"]
    runcmd_run(ctx, [_binary("jt"), "finish", "--dirname", dirname])


def _binary(name):
    srcdir = globals()["srcdir"]
    return os.path.join(srcdir, "target", "debug", "jt2")


def is_directory(ctx, dirname=None):
    assert_eq = globals()["assert_eq"]
    logging.debug("checking if %r is a directory", dirname)
    assert_eq(os.path.isdir(dirname), True)


def output_contains(ctx, pattern=None):
    assert_eq = globals()["assert_eq"]
    logging.debug("checking if %r contains", ctx["stdout"], pattern)
    assert_eq(pattern in ctx["stdout"], True)


def journal_has_no_drafts(ctx, dirname=None):
    assert_eq = globals()["assert_eq"]
    logging.debug(f"checking {dirname} has no drafts")
    drafts = os.path.join(dirname, "drafts")
    assert_eq(_find_files(drafts), [])


def journal_has_one_draft(ctx, dirname=None):
    assert_eq = globals()["assert_eq"]
    logging.debug(f"checking {dirname} has one draft")
    drafts = os.path.join(dirname, "drafts")
    assert_eq(len(_find_files(drafts)), 1)


def journal_has_no_entries(ctx, dirname=None):
    assert_eq = globals()["assert_eq"]
    logging.debug(f"checking {dirname} has no entries")
    entries = os.path.join(dirname, "entries")
    assert_eq(_find_files(entries), [])


def journal_has_one_entry(ctx, dirname=None, variable=None):
    assert_eq = globals()["assert_eq"]
    logging.debug(
        f"checking {dirname} has one entry, whose filename is remembered as {variable}"
    )
    entries = os.path.join(dirname, "entries")
    files = _find_files(entries)
    assert_eq(len(files), 1)
    variables = ctx.get("variables", {})
    variables[variable] = files[0]
    ctx["variables"] = variables


def _find_files(root):
    if not os.path.exists(root):
        return []

    files = []
    for dirname, _, basenames in os.walk(root):
        for basename in basenames:
            files.append(os.path.join(dirname, basename))
    return files


def draft_contains_string(ctx, dirname=None, draftno=None, pattern=None):
    logging.debug(f"checking draft {draftno} in {dirname} has contains {pattern!r}")
    draft = os.path.join(dirname, "drafts", f"{draftno}.md")
    with open(draft) as f:
        data = f.read()
        logging.debug(f"draft content: {data!r}")
        assert pattern in data


def edit_draft(ctx, dirname=None, draftno=None, text=None):
    logging.debug(f"editing draft {draftno} in {dirname} to also contain {text!r}")
    draft = os.path.join(dirname, "drafts", f"{draftno}.md")
    with open(draft, "a") as f:
        f.write(text)


def file_contains(ctx, variable=None, pattern=None):
    logging.debug(f"checking {variable} contains {pattern!r}")

    variables = ctx.get("variables", {})
    logging.debug(f"variables: {variables!r}")

    filename = variables[variable]
    with open(filename) as f:
        data = f.read()
        logging.debug(f"file content: {data!r}")
        assert pattern in data