# -*- coding: utf-8 -*-
import unittest
import os
from s3pathlib.utils import (
    split_s3_uri,
    join_s3_uri,
    split_parts,
    smart_join_s3_key,
    make_s3_console_url,
    ensure_s3_object,
    ensure_s3_dir,
    repr_data_size,
    parse_data_size,
)
from s3pathlib.tests import run_cov_test

dir_here = os.path.dirname(os.path.abspath(__file__))
dir_project_root = os.path.dirname(dir_here)


class TestS3Utils(unittest.TestCase):

    def test_split_s3_uri(self):
        s3_uri = "s3://my-bucket/my-prefix/my-file.zip"
        bucket, key = split_s3_uri(s3_uri)
        self.assertEqual(bucket, "my-bucket")
        self.assertEqual(key, "my-prefix/my-file.zip")

    def test_join_s3_uri(self):
        bucket = "my-bucket"
        key = "my-prefix/my-file.zip"
        s3_uri = join_s3_uri(bucket, key)
        self.assertEqual(s3_uri, "s3://my-bucket/my-prefix/my-file.zip")

    def test_split_parts(self):
        self.assertEqual(split_parts("a/b/c"), ["a", "b", "c"])
        self.assertEqual(split_parts("//a//b//c//"), ["a", "b", "c"])
        self.assertEqual(split_parts(""), [])
        self.assertEqual(split_parts("////"), [])

    def test_s3_key_smart_join(self):
        self.assertEqual(smart_join_s3_key(parts=["/a/", "b/", "/c"], is_dir=True), "a/b/c/")
        self.assertEqual(smart_join_s3_key(parts=["/a/", "b/", "/c"], is_dir=False), "a/b/c")
        self.assertEqual(smart_join_s3_key(parts=["//a//b//c//"], is_dir=True), "a/b/c/")
        self.assertEqual(smart_join_s3_key(parts=["//a//b//c//"], is_dir=False), "a/b/c")

    def test_make_s3_console_url(self):
        # object
        url = make_s3_console_url("my-bucket", "my-file.zip")
        self.assertIn("object", url)

        # folder
        url = make_s3_console_url("my-bucket", "my-folder/")
        self.assertIn("bucket", url)

        # uri
        url = make_s3_console_url(s3_uri="s3://my-bucket/my-folder/data.json")
        self.assertEqual(url, "https://console.aws.amazon.com/s3/object/my-bucket?prefix=my-folder/data.json")

        # s3 bucket root
        url = make_s3_console_url(s3_uri="s3://my-bucket/")
        self.assertEqual(url, "https://console.aws.amazon.com/s3/buckets/my-bucket?tab=objects")

        # version id
        url = make_s3_console_url(s3_uri="s3://my-bucket/my-folder/my-file.zip", version_id="v123")
        self.assertEqual(url, "https://console.aws.amazon.com/s3/object/my-bucket?prefix=my-folder/my-file.zip&versionId=v123")

        # us gov cloud
        url = make_s3_console_url(s3_uri="s3://my-bucket/my-folder/data.json", is_us_gov_cloud=True)
        self.assertEqual(url, "https://console.amazonaws-us-gov.com/s3/object/my-bucket?prefix=my-folder/data.json")

        with self.assertRaises(ValueError):
            make_s3_console_url(bucket="")

        with self.assertRaises(ValueError):
            make_s3_console_url(prefix="", s3_uri="")

    def test_ensure_s3_object(self):
        ensure_s3_object("path/to/key")
        with self.assertRaises(Exception):
            ensure_s3_object("path/to/dir/")

    def test_ensure_s3_dir(self):
        ensure_s3_dir("path/to/dir/")
        with self.assertRaises(Exception):
            ensure_s3_dir("path/to/key")

    def test_repr_data_size(self):
        self.assertEqual(repr_data_size(3600000), "3.43 MB")

    def test_parse_data_size(self):
        self.assertEqual(parse_data_size("3.43 MB"), 3596615)
        self.assertEqual(parse_data_size("2_512.4 MB"), 2634442342)
        self.assertEqual(parse_data_size("2,512.4 MB"), 2634442342)


if __name__ == "__main__":
    run_cov_test(__file__, "s3pathlib.utils", preview=False)