module main

import os

fn show_release_tag_for(now string) string {
    script_path := os.join_path(os.dir(@FILE), 'workflows', 'show_manual_release_cmd.vsh')
    cmd := 'V_RELEASE_TAG_NOW="${now}" ${os.quoted_path(@VEXE)} run ${os.quoted_path(script_path)}'
    res := os.execute(cmd)
    assert res.exit_code == 0, res.output
    for line in res.output.split_into_lines() {
        if line.contains('current release_tag: ') {
            return line.all_after('current release_tag: ')
        }
    }
    panic('missing release tag in output:\n${res.output}')
}

fn test_show_manual_release_cmd_uses_iso_week_year() {
    test_cases := {
        '2025-12-28 00:00:00': 'weekly.2025.52'
        '2025-12-29 00:00:00': 'weekly.2026.01'
        '2025-12-31 00:00:00': 'weekly.2026.01'
        '2026-01-01 00:00:00': 'weekly.2026.01'
        '2026-01-04 00:00:00': 'weekly.2026.01'
        '2026-01-05 00:00:00': 'weekly.2026.02'
    }
    for input, expected in test_cases {
        assert show_release_tag_for(input) == expected
    }
}