From 1cc6139d9b5eb2605cd77a51f1a7d9dc5a063eac Mon Sep 17 00:00:00 2001
From: Huy Nguyen Vu <huyk25sinh@gmail.com>
Date: Fri, 22 Dec 2023 03:14:02 +0700
Subject: [PATCH] Update-dev: quickstart readme

---
 README.md                            | 132 +++++++++++++++++++++-
 requirements.txt                     | 162 +++++++++++++++++++++++++++
 tests/test_objects/shifts_builder.py |  10 +-
 tests/test_shifts_builder.py         |   6 +-
 4 files changed, 300 insertions(+), 10 deletions(-)
 create mode 100644 requirements.txt

diff --git a/README.md b/README.md
index 0133179..985c116 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,130 @@
-# pysla - SLA Calculator and Work Shift Generator in Python
-    Highly customizable SLA calculator and Work shift Generator, for any time-keeping and days-off policies
\ No newline at end of file
+# pysla
+    Highly customizable SLA calculator and Work shift Generator, for any time-keeping and days-off policies
+---
+### Quickstart - A case in Vietnam's Law:
+- Let's calculate **SLA** and **generate work shifts** for an **American** female employee, Working in **Vietnam**, about to take maternity leave.
+- Law references: [(1)][1]; [(2)][2]
+#### 1. She will have:
+- **4-month** of **maternity leave**.
+- Holidays leave:
+    - All **Vietnamese holidays**.
+    - **1 day** from home country's **New Year**'s days (2024-01-01) (same as Solar New Year in Vietnam) (+0 holiday leave)
+    - **1 day** from home country's Independence Days (2024-07-04) (+1 holiday leave)
+- **Overtime shift** in the **Solar New Year**: from 13:30 to 14:30
+- Plus random **3 days off**
+
+#### 2. Configuration for `ShiftsBuilder`
+```python
+from pysla.shifts_builder import ShiftsBuilder, Shift, DateRange
+from datetime import time, date
+
+US_WOMAN_LIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024 = ShiftsBuilder(
+    workdays_weekly=[0,1,2,3,4], # weekday indexes: Monday to Friday
+    daily_shifts=DailyShift([
+        # Usual Morning shift: 8:30 to 11:45
+        # Created using a string, easier to read but slower
+        Shift.fromstr("08301145"),
+        # Usual Afternoon shift: 13:30 to 18:00
+        # Parsed the timestamps straight to parameters, faster
+        Shift(start=time(13,30), end=time(18))
+    ]),
+    days_off_ranges=[ # you can parse `date` or `DateRange`
+        date(2024, 1, 1), # SOLAR_NEW_YEAR
+        date(2024, 7, 4), # US_INDEPENDENCE_DAY
+        DateRange.fromstr("20240430-20240501"), #VIETNAM_VICTORY_DAY
+        DateRange.fromstr("20240902-20240903"), #VIETNAM_INDEPENDENCE_DAY
+        #VIETNAMESE_LUNAR_NEW_YEAR, Lunar DateRange will automatically turn into Solar DateRange
+        DateRange.fromstr("20240101-20240105", calendar_type="lunar") 
+        #VIETNAM_LUNAR_HUNG_KINGS_FESTIVAL
+        DateRange.fromstr("20240310", calendar_type="lunar")
+
+        # 4 months of maternity leave
+        DateRange.fromstr("20240801-20241201"),
+
+        date(2024, 2, 9),  # custom days off
+        date(2024, 6, 3),  # custom days off
+        date(2024, 12, 10),  # custom days off
+    ],
+    special_shifts=ShiftRange(
+        {
+            # Urgent overtime in the Solar New Year
+            # 13:30 to 14:30
+            date(2024, 1, 1): DailyShift([Shift.fromstr("13301430")]),
+        }
+    ),
+)
+```
+
+#### 3. Generate `ShiftRange` for year 2024
+- `ShiftRange` works like a dictionary, and can check the generated `Shift` at a specific `date`.
+```python
+generated_shiftrange = ( # ShiftRange for 2024
+    US_WOMAN_LIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024
+    .build_shifts_from_daterange(
+        from_date=date(2024, 1, 1),
+        to_date=date(2024, 12, 30))
+    )
+# Get Shifts in New Year 2024-01-01
+generated_shiftrange[date(2024,1,1)] 
+# [Shift(start=datetime.time(13, 30), end=datetime.time(14, 30))]
+
+# Get Shifts in a random working day
+generated_shiftrange[date(2024,2,8)]
+# [
+#   Shift(start=datetime.time(8, 30), end=datetime.time(11, 45)), 
+#   Shift(start=datetime.time(13, 30), end=datetime.time(18, 0)) 
+# ]
+
+# Get Shifts in a day off (holiday leave) 2024-07-04
+# KeyError: datetime.date(2024, 2, 9)
+generated_shiftrange[date(2024,7,4)]
+generated_shiftrange.get(date(2024,7,4)) # None
+```
+
+#### 4. Calculate SLA (service-level agreement)
+- The result will be in `Milliseconds`:
+```python
+sla_millis = (
+    US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024
+    .calculate_sla(
+        start_deal=datetime(2024, 1, 1, 14),
+        end_deal=datetime(2024, 1, 2, 9, 30),
+        use_generated_shifts=True, # for faster execution, 
+        # reuse the cached results from `build_shifts_from_daterange`,
+        # if "False", set re-generated `ShiftsRange` from `start_deal` to `end_deal`
+    )
+)
+sla_hours = sla_millis/(1000*60*60) # 1.5 hours
+```
+
+
+### Global `ShiftsBuilder` config for your company/team
+```python
+from pysla.shifts_builder import ShiftsBuilder, Shift
+from datetime import time
+
+COMPANY_SHIFTS_BUILDER = ShiftsBuilder(
+    daily_shifts=DailyShift([
+        Shift.fromstr("08301145"), # morning shift, created using a string, easier to read but slower
+        Shift(start=time(13,30), end=time(18)) # afternoon shift, parsed the timestamps straight to parameters, faster
+    ]),
+    workdays_weekly=[0,1,2,3,4] # Monday to Friday
+)
+```
+- Copy config to a specific `employee`.
+```python
+employee_takes_4_days_off = (
+    COMPANY_SHIFTS_BUILDER
+    .add_days_off_range(
+        [
+            DateRange.fromstr("20241204-20241205"), # 2days off
+            DateRange.fromstr("20241000-20241001") # 2days off
+        ],
+        inplace=False # if `False` will return a copied `ShiftsBuilder`,
+        # if `True`, will change `COMPANY_SHIFTS_BUILDER` and return `None`
+    ))
+```
+
+
+[1]:https://english.luatvietnam.vn/legal-news/public-holiday-leaves-of-foreign-employees-in-vietnam-4729-91710-article.html
+[2]: https://vietnamlawmagazine.vn/maternity-leave-for-foreign-female-employees-6115.html
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..2ea7100
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,162 @@
+annotated-types==0.6.0 ; python_version >= "3.10" and python_version < "4.0" \
+    --hash=sha256:0641064de18ba7a25dee8f96403ebc39113d0cb953a01429249d5c7564666a43 \
+    --hash=sha256:563339e807e53ffd9c267e99fc6d9ea23eb8443c08f112651963e24e22f84a5d
+lunardate==0.2.2 ; python_version >= "3.10" and python_version < "4.0" \
+    --hash=sha256:8ff8c01721bef7710f0712a302b1cb7d0b8b3ffc72a63a9a056cd01e58e5485a \
+    --hash=sha256:cf1916337e50470a82df12d885ff47a456e89c91a3ad4e5fdf1575e063a7ed55
+numpy==1.26.2 ; python_version >= "3.10" and python_version < "4.0" \
+    --hash=sha256:06fa1ed84aa60ea6ef9f91ba57b5ed963c3729534e6e54055fc151fad0423f0a \
+    --hash=sha256:174a8880739c16c925799c018f3f55b8130c1f7c8e75ab0a6fa9d41cab092fd6 \
+    --hash=sha256:1a13860fdcd95de7cf58bd6f8bc5a5ef81c0b0625eb2c9a783948847abbef2c2 \
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+    --hash=sha256:fe6b44fb8fcdf7eda4ef4461b97b3f63c466b27ab151bec2366db8b197387841
+polars==0.20.2 ; python_version >= "3.10" and python_version < "4.0" \
+    --hash=sha256:38d304d532d7bf7f5fb8b878924bf1580ea83aa2f81c7dcd65f8c722fc29e6f9 \
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+    --hash=sha256:af36f36538418f3806048f3b242a1777e2540ff9efaa667c27da63d2749dbce0 \
+    --hash=sha256:b53e9ad053cd064f7e473a5f29b37fc4cc9dc6d35f341e6afc0155ea257fc911 \
+    --hash=sha256:b7851992faf25eac90bfcb7bfd19e1f5ffa00afd57daec8a0042e63c74a4551b \
+    --hash=sha256:b9b759b77f5337b4ea024f03abc6464c9f35d9718de01cfe6bae9f2e139c397e \
+    --hash=sha256:ba39688799094c75ea8a16a6b544eb57b5b0f3328697084f3f2790892510d144 \
+    --hash=sha256:ba6b6b3846cfc10fdb4c971980a954e49d447cd215ed5a77ec8190bc93dd7bc5 \
+    --hash=sha256:bb4c2eda937a5e74c38a41b33d8c77220380a388d689bcdb9b187cf6224c9720 \
+    --hash=sha256:c0b97ec434041827935044bbbe52b03d6018c2897349670ff8fe11ed24d1d4ab \
+    --hash=sha256:c1452a1acdf914d194159439eb21e56b89aa903f2e1c65c60b9d874f9b950e5d \
+    --hash=sha256:c2027d05c8aebe61d898d4cffd774840a9cb82ed356ba47a90d99ad768f39789 \
+    --hash=sha256:c2adbe22ab4babbca99c75c5d07aaf74f43c3195384ec07ccbd2f9e3bddaecec \
+    --hash=sha256:c2d97e906b4ff36eb464d52a3bc7d720bd6261f64bc4bcdbcd2c557c02081ed2 \
+    --hash=sha256:c339dabd8ee15f8259ee0f202679b6324926e5bc9e9a40bf981ce77c038553db \
+    --hash=sha256:c6eae413494a1c3f89055da7a5515f32e05ebc1a234c27674a6956755fb2236f \
+    --hash=sha256:c949f04ecad823f81b1ba94e7d189d9dfb81edbb94ed3f8acfce41e682e48cef \
+    --hash=sha256:c97bee68898f3f4344eb02fec316db93d9700fb1e6a5b760ffa20d71d9a46ce3 \
+    --hash=sha256:ca61d858e4107ce5e1330a74724fe757fc7135190eb5ce5c9d0191729f033209 \
+    --hash=sha256:cb4679d4c2b089e5ef89756bc73e1926745e995d76e11925e3e96a76d5fa51fc \
+    --hash=sha256:cb774298da62aea5c80a89bd58c40205ab4c2abf4834453b5de207d59d2e1651 \
+    --hash=sha256:ccd4d5702bb90b84df13bd491be8d900b92016c5a455b7e14630ad7449eb03f8 \
+    --hash=sha256:cf9d3fe53b1ee360e2421be95e62ca9b3296bf3f2fb2d3b83ca49ad3f925835e \
+    --hash=sha256:d2ae91f50ccc5810b2f1b6b858257c9ad2e08da70bf890dee02de1775a387c66 \
+    --hash=sha256:d37f8ec982ead9ba0a22a996129594938138a1503237b87318392a48882d50b7 \
+    --hash=sha256:d81e6987b27bc7d101c8597e1cd2bcaa2fee5e8e0f356735c7ed34368c471550 \
+    --hash=sha256:dcf4e6d85614f7a4956c2de5a56531f44efb973d2fe4a444d7251df5d5c4dcfd \
+    --hash=sha256:de790a3b5aa2124b8b78ae5faa033937a72da8efe74b9231698b5a1dd9be3405 \
+    --hash=sha256:e47e9a08bcc04d20975b6434cc50bf82665fbc751bcce739d04a3120428f3e27 \
+    --hash=sha256:e60f112ac88db9261ad3a52032ea46388378034f3279c643499edb982536a093 \
+    --hash=sha256:e87fc540c6cac7f29ede02e0f989d4233f88ad439c5cdee56f693cc9c1c78077 \
+    --hash=sha256:eac5c82fc632c599f4639a5886f96867ffced74458c7db61bc9a66ccb8ee3113 \
+    --hash=sha256:ebb4e035e28f49b6f1a7032920bb9a0c064aedbbabe52c543343d39341a5b2a3 \
+    --hash=sha256:ec1e72d6412f7126eb7b2e3bfca42b15e6e389e1bc88ea0069d0cc1742f477c6 \
+    --hash=sha256:ef98ca7d5995a82f43ec0ab39c4caf6a9b994cb0b53648ff61716370eadc43cf \
+    --hash=sha256:f0cbc7fff06a90bbd875cc201f94ef0ee3929dfbd5c55a06674b60857b8b85ed \
+    --hash=sha256:f4791cf0f8c3104ac668797d8c514afb3431bc3305f5638add0ba1a5a37e0d88 \
+    --hash=sha256:f5e412d717366e0677ef767eac93566582518fe8be923361a5c204c1a62eaafe \
+    --hash=sha256:fb2ed8b3fe4bf4506d6dab3b93b83bbc22237e230cba03866d561c3577517d18 \
+    --hash=sha256:fe0a5a1025eb797752136ac8b4fa21aa891e3d74fd340f864ff982d649691867
+pydantic==2.5.2 ; python_version >= "3.10" and python_version < "4.0" \
+    --hash=sha256:80c50fb8e3dcecfddae1adbcc00ec5822918490c99ab31f6cf6140ca1c1429f0 \
+    --hash=sha256:ff177ba64c6faf73d7afa2e8cad38fd456c0dbe01c9954e71038001cd15a6edd
+typing-extensions==4.9.0 ; python_version >= "3.10" and python_version < "4.0" \
+    --hash=sha256:23478f88c37f27d76ac8aee6c905017a143b0b1b886c3c9f66bc2fd94f9f5783 \
+    --hash=sha256:af72aea155e91adfc61c3ae9e0e342dbc0cba726d6cba4b6c72c1f34e47291cd
diff --git a/tests/test_objects/shifts_builder.py b/tests/test_objects/shifts_builder.py
index e6d3ba5..947ee1f 100644
--- a/tests/test_objects/shifts_builder.py
+++ b/tests/test_objects/shifts_builder.py
@@ -32,7 +32,7 @@
     - 1 day from home country's Independence Days (2024-07-04) (+1 holiday leave)
 - Overtime work in the Solar New Year: from 13:30 to 14:30
 """
-US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_6MONTHS_2024 = (
+US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024 = (
     COMPANY_SHIFTS_BUILDER.partial_config_copy(
         days_off_ranges=[
             SOLAR_NEW_YEAR,
@@ -63,18 +63,18 @@
     from icecream import ic
 
     # ic(
-    #     US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_6MONTHS_2024.get_days_off()
+    #     US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024.get_days_off()
     # )
-    US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_6MONTHS_2024.build_shifts_from_daterange(
+    US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024.build_shifts_from_daterange(
         from_date=date(2024, 1, 1), to_date=date(2024, 12, 30)
     )
-    generated_shifts = US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_6MONTHS_2024.get_generated_shifts()
+    generated_shifts = US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024.get_generated_shifts()
 
     ic(generated_shifts[date(2024, 1, 2)])
     ic(generated_shifts[date(2024, 1, 2)].total_milliseconds / (1000 * 3600))
 
     ic(
-        US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_6MONTHS_2024.calculate_sla(
+        US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024.calculate_sla(
             start_deal=datetime(2024, 1, 1, 14, 0),
             end_deal=datetime(2024, 1, 3, 9, 30),
             use_generated_shifts=True,
diff --git a/tests/test_shifts_builder.py b/tests/test_shifts_builder.py
index 9b3e7df..06f17b4 100644
--- a/tests/test_shifts_builder.py
+++ b/tests/test_shifts_builder.py
@@ -2,16 +2,16 @@
 
 from tests.test_objects.manual import TEST_YEAR
 from tests.test_objects.shifts_builder import (
-    US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_6MONTHS_2024,
+    US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024,
 )
 
 
 def test_shifts_builder():
-    US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_6MONTHS_2024.build_shifts_from_daterange(
+    US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024.build_shifts_from_daterange(
         from_date=date(TEST_YEAR, 1, 1), to_date=date(TEST_YEAR, 12, 30)
     )
     millis_sla_new_year_day = (
-        US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_6MONTHS_2024.calculate_sla(
+        US_WOMAN_lIVING_IN_VIETNAM_MATERNITY_LEAVE_4MONTHS_2024.calculate_sla(
             start_deal=datetime(TEST_YEAR, 1, 1, 14),
             end_deal=datetime(TEST_YEAR, 1, 2, 9, 30),
             use_generated_shifts=True,