# -*- coding: utf-8 -*-
"""
Generator RPS Format APTIKOM 2024 — Prodi Informatika S1 UNTAN.
Diadaptasi dari buat_template_rps.py; gaya visual dipertahankan persis,
placeholder diganti data isian dosen.
"""
import io
import pathlib

from docx import Document
from docx.enum.table import WD_ALIGN_VERTICAL
from docx.enum.text import WD_ALIGN_PARAGRAPH
from docx.oxml import OxmlElement
from docx.oxml.ns import qn
from docx.shared import Cm, Pt, RGBColor

DARK_BLUE = "1F4E79"
MID_BLUE = "2E75B6"
LIGHT_BLUE = "D6E4F0"
GREEN_LITE = "E2EFDA"
YELLOW = "FFF2CC"
WHITE = "FFFFFF"

LOGO = pathlib.Path(__file__).resolve().parent.parent / "static" / "logo-untan.png"


def _shd(cell, hex_color):
    tc_pr = cell._tc.get_or_add_tcPr()
    el = OxmlElement("w:shd")
    el.set(qn("w:val"), "clear")
    el.set(qn("w:color"), "auto")
    el.set(qn("w:fill"), hex_color)
    tc_pr.append(el)


def _ct(cell, text, bold=False, italic=False, size=10, color=None,
        align=WD_ALIGN_PARAGRAPH.LEFT):
    p = cell.paragraphs[0]
    p.alignment = align
    p.paragraph_format.space_before = Pt(1)
    p.paragraph_format.space_after = Pt(1)
    run = p.add_run(text or "")
    run.bold = bold
    run.italic = italic
    run.font.name = "Times New Roman"
    run.font.size = Pt(size)
    if color:
        run.font.color.rgb = RGBColor.from_string(color)
    cell.vertical_alignment = WD_ALIGN_VERTICAL.CENTER


def _hdr(cell, text, bg=DARK_BLUE, fg=WHITE):
    _shd(cell, bg)
    _ct(cell, text, bold=True, color=fg, align=WD_ALIGN_PARAGRAPH.CENTER)


def _widths(table, cms):
    for row in table.rows:
        for ci, w in enumerate(cms):
            try:
                row.cells[ci].width = Cm(w)
            except IndexError:
                pass


def build_rps(d: dict) -> bytes:
    """d = data RPS tersimpan (lihat main.py: bentuk_data_form)."""
    doc = Document()
    for sec in doc.sections:
        sec.top_margin = Cm(2.5)
        sec.bottom_margin = Cm(2.5)
        sec.left_margin = Cm(3)
        sec.right_margin = Cm(2)

    def section_head(text):
        p = doc.add_paragraph()
        p.paragraph_format.space_before = Pt(8)
        p.paragraph_format.space_after = Pt(3)
        r = p.add_run(text)
        r.bold = True
        r.font.name = "Times New Roman"
        r.font.size = Pt(11)

    ident = d.get("identitas", {})

    # ── logo UNTAN (dari RPS Template.docx resmi) ──
    if LOGO.exists():
        p = doc.add_paragraph()
        p.alignment = WD_ALIGN_PARAGRAPH.CENTER
        p.paragraph_format.space_after = Pt(4)
        p.add_run().add_picture(str(LOGO), width=Cm(2.6))

    # ── judul ──
    for txt, sz, bd in [
        ("RENCANA PEMBELAJARAN SEMESTER (RPS)", 14, True),
        ("Program Studi Informatika", 12, True),
        ("Fakultas Matematika dan Ilmu Pengetahuan Alam", 11, False),
        ("Universitas Tanjungpura", 11, False),
    ]:
        p = doc.add_paragraph()
        p.alignment = WD_ALIGN_PARAGRAPH.CENTER
        p.paragraph_format.space_before = Pt(0)
        p.paragraph_format.space_after = Pt(2)
        r = p.add_run(txt)
        r.bold = bd
        r.font.name = "Times New Roman"
        r.font.size = Pt(sz)
    doc.add_paragraph()

    # ── A. identitas ──
    section_head("A. IDENTITAS MATA KULIAH")
    sks = ident.get("sks", "")
    sks_t = ident.get("sks_teori", "")
    sks_p = ident.get("sks_praktikum", "")
    sks_txt = f"{sks} SKS"
    if sks_t or sks_p:
        sks_txt += f"  (Teori: {sks_t or '-'} SKS  |  Praktikum: {sks_p or '-'} SKS)"
    rows_id = [
        ("Nama Mata Kuliah", ident.get("nama", "")),
        ("Kode Mata Kuliah", ident.get("kode", "")),
        ("Bobot SKS", sks_txt),
        ("Semester", ident.get("semester", "")),
        ("MK Prasyarat", ident.get("prasyarat", "") or "—"),
        ("Dosen Pengampu", ident.get("pengampu", "")),
        ("Koordinator MK", ident.get("koordinator", "")),
        ("Ketua Program Studi", ident.get("kaprodi", "")),
        ("Tahun Ajaran", d.get("tahun", "")),
    ]
    ta = doc.add_table(rows=len(rows_id), cols=3)
    ta.style = "Table Grid"
    for i, (lbl, val) in enumerate(rows_id):
        c = ta.rows[i].cells
        _shd(c[0], LIGHT_BLUE)
        _ct(c[0], lbl, bold=True)
        _ct(c[1], ":", align=WD_ALIGN_PARAGRAPH.CENTER)
        _ct(c[2], val)
    _widths(ta, [5.5, 0.5, 9.5])
    doc.add_paragraph()

    # ── B. CPL ──
    section_head("B. CAPAIAN PEMBELAJARAN LULUSAN (CPL) YANG DIBEBANKAN PADA MK")
    cpls = d.get("cpl", [])
    tb = doc.add_table(rows=1 + max(len(cpls), 1), cols=2)
    tb.style = "Table Grid"
    _hdr(tb.cell(0, 0), "Kode CPL")
    _hdr(tb.cell(0, 1), "Deskripsi CPL")
    for i, cpl in enumerate(cpls, 1):
        _ct(tb.cell(i, 0), cpl["kode"], align=WD_ALIGN_PARAGRAPH.CENTER)
        _ct(tb.cell(i, 1), cpl["desk"])
    _widths(tb, [2.5, 13])
    doc.add_paragraph()

    # ── C. CPMK ──
    section_head("C. CAPAIAN PEMBELAJARAN MATA KULIAH (CPMK)")
    cpmks = d.get("cpmk", [])
    tc = doc.add_table(rows=1 + max(len(cpmks), 1), cols=3)
    tc.style = "Table Grid"
    _hdr(tc.cell(0, 0), "Kode CPMK")
    _hdr(tc.cell(0, 1), "Deskripsi CPMK")
    _hdr(tc.cell(0, 2), "CPL yang Didukung")
    for i, c in enumerate(cpmks, 1):
        _ct(tc.cell(i, 0), c["kode"], align=WD_ALIGN_PARAGRAPH.CENTER)
        _ct(tc.cell(i, 1), c["desk"])
        _ct(tc.cell(i, 2), ", ".join(c.get("cpl", [])), align=WD_ALIGN_PARAGRAPH.CENTER)
    _widths(tc, [2.5, 9, 4])
    doc.add_paragraph()

    # ── D. Sub-CPMK ──
    section_head("D. SUB-CPMK (Kemampuan Akhir Tiap Tahapan Belajar)")
    subs = d.get("sub", [])
    td = doc.add_table(rows=1 + max(len(subs), 1), cols=3)
    td.style = "Table Grid"
    _hdr(td.cell(0, 0), "Kode Sub-CPMK")
    _hdr(td.cell(0, 1), "Uraian Sub-CPMK")
    _hdr(td.cell(0, 2), "CPMK yang\nDidukung")
    for i, s in enumerate(subs, 1):
        _ct(td.cell(i, 0), s["kode"], align=WD_ALIGN_PARAGRAPH.CENTER)
        _ct(td.cell(i, 1), s["uraian"])
        _ct(td.cell(i, 2), s.get("cpmk", ""), align=WD_ALIGN_PARAGRAPH.CENTER)
    _widths(td, [3, 9, 3.5])
    doc.add_paragraph()

    # ── E. deskripsi ──
    section_head("E. DESKRIPSI SINGKAT MATA KULIAH")
    te = doc.add_table(rows=1, cols=1)
    te.style = "Table Grid"
    _ct(te.cell(0, 0), d.get("deskripsi", ""))
    te.cell(0, 0).width = Cm(15.5)
    doc.add_paragraph()

    # ── F. tabel mingguan ──
    section_head("F. RENCANA PEMBELAJARAN SEMESTER — Tabel F APTIKOM 2024")
    minggu = d.get("minggu", [])
    nrow = 2 + len(minggu) + 1
    tf = doc.add_table(rows=nrow, cols=7)
    tf.style = "Table Grid"
    _hdr(tf.cell(0, 0), "Minggu\nke-")
    _hdr(tf.cell(0, 1), "Sub-CPMK\n(Kemampuan Akhir\nyang Direncanakan)")
    _hdr(tf.cell(0, 2), "Penilaian")
    _hdr(tf.cell(0, 4), "Bentuk & Metode\nPembelajaran\n[Estimasi Waktu]")
    _hdr(tf.cell(0, 5), "Materi Pembelajaran\n[Bahan Kajian]\n[Referensi]")
    _hdr(tf.cell(0, 6), "Bobot\n(%)")
    tf.cell(0, 2).merge(tf.cell(0, 3))
    _hdr(tf.cell(1, 2), "Indikator\nPencapaian", bg=MID_BLUE)
    _hdr(tf.cell(1, 3), "Kriteria &\nBentuk Penilaian", bg=MID_BLUE)
    for ci in (0, 1, 4, 5, 6):
        tf.cell(0, ci).merge(tf.cell(1, ci))

    total_bobot = 0.0
    for idx, m in enumerate(minggu):
        ri = idx + 2
        w = m.get("ke", idx + 1)
        cells = [tf.cell(ri, ci) for ci in range(7)]
        if w == 8:
            for c in cells:
                _shd(c, GREEN_LITE)
        elif w == 16:
            for c in cells:
                _shd(c, YELLOW)
        _ct(cells[0], str(w), align=WD_ALIGN_PARAGRAPH.CENTER)
        _ct(cells[1], m.get("sub", ""))
        _ct(cells[2], m.get("indikator", ""))
        _ct(cells[3], m.get("kriteria", ""))
        _ct(cells[4], m.get("metode", ""))
        _ct(cells[5], m.get("materi", ""))
        bobot = m.get("bobot", "")
        _ct(cells[6], str(bobot) if bobot != "" else "", align=WD_ALIGN_PARAGRAPH.CENTER)
        try:
            total_bobot += float(bobot)
        except (TypeError, ValueError):
            pass

    last = nrow - 1
    tf.cell(last, 0).merge(tf.cell(last, 5))
    _shd(tf.cell(last, 0), LIGHT_BLUE)
    _ct(tf.cell(last, 0), "Total Bobot Penilaian", bold=True, align=WD_ALIGN_PARAGRAPH.RIGHT)
    _shd(tf.cell(last, 6), LIGHT_BLUE)
    total_txt = f"{total_bobot:g}%"
    _ct(tf.cell(last, 6), total_txt, bold=True, align=WD_ALIGN_PARAGRAPH.CENTER)
    _widths(tf, [1.0, 3.0, 2.5, 2.5, 3.0, 3.0, 1.0])
    doc.add_paragraph()

    # ── G. rekap bobot ──
    section_head("G. REKAP BOBOT PENILAIAN")
    komponen = d.get("komponen", [])
    tg = doc.add_table(rows=1 + len(komponen) + 1, cols=3)
    tg.style = "Table Grid"
    _hdr(tg.cell(0, 0), "Komponen Penilaian")
    _hdr(tg.cell(0, 1), "Sub-CPMK yang Dinilai")
    _hdr(tg.cell(0, 2), "Bobot (%)")
    tot_komp = 0.0
    for i, k in enumerate(komponen, 1):
        _ct(tg.cell(i, 0), k.get("nama", ""))
        _ct(tg.cell(i, 1), ", ".join(k.get("subs", [])))
        b = k.get("bobot", "")
        _ct(tg.cell(i, 2), str(b), align=WD_ALIGN_PARAGRAPH.CENTER)
        try:
            tot_komp += float(b)
        except (TypeError, ValueError):
            pass
    li = len(komponen) + 1
    for ci in range(3):
        _shd(tg.cell(li, ci), LIGHT_BLUE)
    _ct(tg.cell(li, 0), "Total", bold=True)
    _ct(tg.cell(li, 2), f"{tot_komp:g}", bold=True, align=WD_ALIGN_PARAGRAPH.CENTER)
    _widths(tg, [4, 9, 2.5])
    doc.add_paragraph()

    # ── H. referensi ──
    section_head("H. DAFTAR REFERENSI")
    refs = d.get("referensi", [])
    th = doc.add_table(rows=1 + max(len(refs), 1), cols=2)
    th.style = "Table Grid"
    _hdr(th.cell(0, 0), "No.")
    _hdr(th.cell(0, 1), "Referensi (Format APA)")
    for i, ref in enumerate(refs, 1):
        _ct(th.cell(i, 0), str(i), align=WD_ALIGN_PARAGRAPH.CENTER)
        _ct(th.cell(i, 1), ref)
    _widths(th, [1, 14.5])
    doc.add_paragraph()

    # ── I. otorisasi ──
    section_head("I. OTORISASI")
    ti = doc.add_table(rows=4, cols=2)
    ti.style = "Table Grid"
    _shd(ti.cell(0, 0), LIGHT_BLUE)
    _shd(ti.cell(0, 1), LIGHT_BLUE)
    _ct(ti.cell(0, 0), "Koordinator Mata Kuliah", bold=True, align=WD_ALIGN_PARAGRAPH.CENTER)
    _ct(ti.cell(0, 1), "Ketua Program Studi", bold=True, align=WD_ALIGN_PARAGRAPH.CENTER)
    _ct(ti.cell(1, 0), "\n\n\n\n")
    _ct(ti.cell(1, 1), "\n\n\n\n")
    koor = ident.get("koordinator", "").strip()
    kapr = ident.get("kaprodi", "").strip()
    _ct(ti.cell(2, 0), f"(  {koor or '_____________________________'}  )",
        align=WD_ALIGN_PARAGRAPH.CENTER)
    _ct(ti.cell(2, 1), f"(  {kapr or '_____________________________'}  )",
        align=WD_ALIGN_PARAGRAPH.CENTER)
    _ct(ti.cell(3, 0), "NIP. ....................................", align=WD_ALIGN_PARAGRAPH.CENTER)
    _ct(ti.cell(3, 1), "NIP. ....................................", align=WD_ALIGN_PARAGRAPH.CENTER)
    doc.add_paragraph()

    # ── J. lampiran kisi-kisi (bukti constructive alignment) ──
    section_head("J. LAMPIRAN — KISI-KISI ASESMEN (Komponen × Sub-CPMK)")
    tj = doc.add_table(rows=1 + max(len(komponen), 1), cols=4)
    tj.style = "Table Grid"
    _hdr(tj.cell(0, 0), "Komponen")
    _hdr(tj.cell(0, 1), "Sub-CPMK yang Dinilai")
    _hdr(tj.cell(0, 2), "Porsi per Sub-CPMK (%)")
    _hdr(tj.cell(0, 3), "Bobot Komponen (%)")
    for i, k in enumerate(komponen, 1):
        subs_k = k.get("subs", [])
        try:
            bobot = float(k.get("bobot", 0) or 0)
        except (TypeError, ValueError):
            bobot = 0.0
        porsi = f"{bobot / len(subs_k):.1f}" if subs_k else "—"
        _ct(tj.cell(i, 0), k.get("nama", ""))
        _ct(tj.cell(i, 1), ", ".join(subs_k) or "—")
        _ct(tj.cell(i, 2), f"{porsi} (bagi rata)" if subs_k else "—",
            align=WD_ALIGN_PARAGRAPH.CENTER)
        _ct(tj.cell(i, 3), str(k.get("bobot", "")), align=WD_ALIGN_PARAGRAPH.CENTER)
    _widths(tj, [3.5, 7, 3, 2])
    p = doc.add_paragraph()
    r = p.add_run(
        "Porsi per Sub-CPMK dihitung bagi rata dari bobot komponen "
        "(kebijakan default prodi); penyesuaian porsi per butir soal dicatat "
        "pada dokumen portofolio mata kuliah."
    )
    r.italic = True
    r.font.name = "Times New Roman"
    r.font.size = Pt(9)

    buf = io.BytesIO()
    doc.save(buf)
    return buf.getvalue()