#!/usr/bin/env python3
"""Generate 16x16 block textures for smart_crafting_table, post_office, mailbox."""

from pathlib import Path
from PIL import Image

ROOT = Path(__file__).resolve().parent.parent

# ── Palette ─────────────────────────────────────────────────
OAK_LIGHT = (150, 110, 65)
OAK_DARK = (115, 80, 45)
OAK_SHADOW = (80, 55, 28)
GOLD = (218, 165, 32)
GOLD_BRIGHT = (255, 214, 85)
REDSTONE = (210, 40, 40)
REDSTONE_BRIGHT = (255, 90, 90)

BRICK_RED = (138, 58, 48)
BRICK_DARK = (92, 38, 30)
MORTAR = (68, 52, 42)
SLATE = (58, 62, 70)
CREAM = (240, 225, 190)
ENVELOPE_LINE = (45, 30, 20)
STAMP_RED = (190, 50, 50)

MB_RED = (175, 40, 40)
MB_RED_DARK = (115, 25, 25)
MB_RED_HL = (220, 75, 75)
MB_BLACK = (20, 20, 20)
MB_FLAG = (235, 190, 55)
MB_POST = (90, 60, 35)

# Tent canvas — weathered green army-tent fabric
CANVAS_LIGHT = (118, 138, 88)
CANVAS_MID = (90, 110, 68)
CANVAS_DARK = (66, 84, 50)
CANVAS_SHADOW = (44, 58, 36)
CANVAS_STITCH = (190, 175, 130)


def save(img: Image.Image, rel: str) -> None:
    out = ROOT / rel
    out.parent.mkdir(parents=True, exist_ok=True)
    img.save(out)
    print(f"wrote {rel}")


def px(img: Image.Image, x: int, y: int, color) -> None:
    if 0 <= x < img.width and 0 <= y < img.height:
        img.putpixel((x, y), color)


def rect(img: Image.Image, x0: int, y0: int, x1: int, y1: int, color) -> None:
    for y in range(y0, y1 + 1):
        for x in range(x0, x1 + 1):
            px(img, x, y, color)


# ── Smart Crafting Table ───────────────────────────────────
# Top-down style: oak planks, bold gold frame, 2x2 inlay with redstone + diamond.
def smart_crafting_table() -> Image.Image:
    img = Image.new("RGBA", (16, 16), OAK_LIGHT)

    # Oak plank background with subtle grain
    for y in range(16):
        band = (y // 4) % 2
        color = OAK_LIGHT if band == 0 else OAK_DARK
        rect(img, 0, y, 15, y, color)
    # Knots / grain speckle
    for (x, y) in [(3, 1), (11, 2), (6, 5), (13, 6), (2, 9), (9, 10), (5, 13), (12, 14)]:
        px(img, x, y, OAK_SHADOW)
    # Plank seams
    for y in (3, 7, 11):
        rect(img, 0, y, 15, y, OAK_SHADOW)

    # Bold gold frame (2px thick)
    rect(img, 0, 0, 15, 1, GOLD)
    rect(img, 0, 14, 15, 15, GOLD)
    rect(img, 0, 0, 1, 15, GOLD)
    rect(img, 14, 0, 15, 15, GOLD)
    # Inner frame highlight
    rect(img, 1, 1, 14, 1, GOLD_BRIGHT)
    rect(img, 1, 14, 14, 14, (165, 120, 20))
    rect(img, 1, 2, 1, 13, GOLD_BRIGHT)
    rect(img, 14, 2, 14, 13, (165, 120, 20))
    # Corner rivets
    for (x, y) in [(0, 0), (15, 0), (0, 15), (15, 15)]:
        px(img, x, y, (90, 65, 10))

    # 2x2 inset panels with gold dividers at mid (x=7..8, y=7..8)
    # Top-left = redstone, top-right = diamond, bottom-left = emerald, bottom-right = gold ingot
    TL = (3, 3, 6, 6)   # redstone area
    TR = (9, 3, 12, 6)  # diamond area
    BL = (3, 9, 6, 12)  # emerald area
    BR = (9, 9, 12, 12) # gold area

    # Dark recessed wells
    for (x0, y0, x1, y1) in (TL, TR, BL, BR):
        rect(img, x0, y0, x1, y1, (40, 25, 12))

    # Redstone gem (red)
    rect(img, 4, 4, 5, 5, REDSTONE)
    px(img, 4, 4, REDSTONE_BRIGHT)

    # Diamond (cyan)
    rect(img, 10, 4, 11, 5, (120, 220, 235))
    px(img, 10, 4, (200, 250, 255))

    # Emerald (green)
    rect(img, 4, 10, 5, 11, (50, 170, 90))
    px(img, 4, 10, (120, 220, 150))

    # Gold nugget
    rect(img, 10, 10, 11, 11, GOLD)
    px(img, 10, 10, GOLD_BRIGHT)

    # Gold cross dividers
    rect(img, 7, 2, 8, 13, GOLD)
    rect(img, 2, 7, 13, 8, GOLD)
    # Center jewel
    px(img, 7, 7, REDSTONE_BRIGHT)
    px(img, 8, 7, REDSTONE_BRIGHT)
    px(img, 7, 8, REDSTONE)
    px(img, 8, 8, REDSTONE)

    return img


# ── Post Office ────────────────────────────────────────────
# Big envelope front: cream background, bold dark fold lines, red stamp, "POST" bar.
def post_office() -> Image.Image:
    img = Image.new("RGBA", (16, 16), CREAM)

    # Outer envelope border (1px)
    rect(img, 0, 0, 15, 0, ENVELOPE_LINE)
    rect(img, 0, 15, 15, 15, ENVELOPE_LINE)
    rect(img, 0, 0, 0, 15, ENVELOPE_LINE)
    rect(img, 15, 0, 15, 15, ENVELOPE_LINE)

    # Paper shade (slight gradient on bottom half)
    for y in range(8, 15):
        for x in range(1, 15):
            if (x + y) % 3 == 0:
                px(img, x, y, (225, 210, 175))

    # Envelope fold: top-left and top-right diagonals meeting at center-top
    # Lines go from (1,1) -> (7,7) and (14,1) -> (8,7)
    for i in range(7):
        px(img, 1 + i, 1 + i, ENVELOPE_LINE)
        px(img, 14 - i, 1 + i, ENVELOPE_LINE)
    # Second pass for thickness
    for i in range(6):
        px(img, 2 + i, 1 + i, (90, 70, 50))
        px(img, 13 - i, 1 + i, (90, 70, 50))

    # Horizontal seam at y=8 (where flaps meet paper)
    rect(img, 1, 8, 14, 8, ENVELOPE_LINE)

    # Red stamp: top-right square (3x3) with crosshatch
    rect(img, 11, 2, 13, 4, STAMP_RED)
    px(img, 12, 3, (255, 220, 220))  # stamp center highlight
    # Stamp border
    px(img, 10, 2, ENVELOPE_LINE)
    px(img, 10, 3, ENVELOPE_LINE)
    px(img, 10, 4, ENVELOPE_LINE)
    px(img, 11, 5, ENVELOPE_LINE)
    px(img, 12, 5, ENVELOPE_LINE)
    px(img, 13, 5, ENVELOPE_LINE)

    # Address bar: dark rectangle bottom-center reading like lines of text
    rect(img, 3, 11, 12, 12, (120, 100, 75))
    rect(img, 3, 13, 10, 13, (120, 100, 75))

    # "POST" mark: a small red circle stamp bottom-right
    rect(img, 11, 11, 13, 13, STAMP_RED)
    px(img, 11, 11, (0, 0, 0, 0))
    px(img, 13, 11, (0, 0, 0, 0))
    px(img, 11, 13, (0, 0, 0, 0))
    px(img, 13, 13, (0, 0, 0, 0))
    px(img, 12, 12, (255, 230, 230))

    return img


# ── Mailbox ───────────────────────────────────────────────
# Classic red pillar-mailbox front: domed top, slot, base, flag.
def mailbox() -> Image.Image:
    img = Image.new("RGBA", (16, 16), (0, 0, 0, 0))

    # Post base (wooden) across bottom
    rect(img, 6, 14, 9, 15, MB_POST)
    px(img, 6, 14, (70, 45, 25))
    px(img, 9, 14, (70, 45, 25))

    # Mailbox body (rounded: rows 2..13)
    # Body rectangle x=2..13, y=4..13
    rect(img, 2, 4, 13, 13, MB_RED)
    # Rounded top corners
    px(img, 2, 4, (0, 0, 0, 0))
    px(img, 13, 4, (0, 0, 0, 0))
    # Add a dome/top-bump
    rect(img, 3, 2, 12, 3, MB_RED)
    px(img, 3, 2, (0, 0, 0, 0))
    px(img, 12, 2, (0, 0, 0, 0))
    rect(img, 4, 1, 11, 1, MB_RED)
    rect(img, 5, 0, 10, 0, MB_RED_DARK)

    # Left-side highlight (lighter vertical stripe)
    rect(img, 3, 5, 3, 12, MB_RED_HL)
    px(img, 4, 2, MB_RED_HL)

    # Right-side shadow
    rect(img, 12, 5, 12, 12, MB_RED_DARK)
    rect(img, 11, 13, 13, 13, MB_RED_DARK)

    # Black letter slot (horizontal bar)
    rect(img, 5, 6, 10, 7, MB_BLACK)
    # Slot highlight
    rect(img, 5, 6, 10, 6, (50, 50, 50))

    # Circular latch below slot
    px(img, 7, 10, MB_BLACK)
    px(img, 8, 10, MB_BLACK)
    px(img, 7, 11, MB_BLACK)
    px(img, 8, 11, MB_BLACK)
    px(img, 7, 10, (90, 90, 90))

    # Yellow flag on the right side
    rect(img, 14, 3, 15, 6, MB_FLAG)
    px(img, 14, 3, (180, 140, 40))
    px(img, 15, 6, (180, 140, 40))
    # Flag pole
    rect(img, 14, 7, 14, 10, (60, 60, 60))

    return img


# ── Tent Canvas ────────────────────────────────────────────
# Weathered army-canvas fabric: subtle horizontal weave + occasional darker
# mottling + a vertical seam stitch line. Fully opaque so it doesn't ghost
# against the alpha_test renderer.
def tent_canvas() -> Image.Image:
    img = Image.new("RGBA", (16, 16), CANVAS_MID)

    # Horizontal weave bands (every 2 rows alternating tone)
    for y in range(16):
        row = CANVAS_MID if (y // 2) % 2 == 0 else CANVAS_DARK
        rect(img, 0, y, 15, y, row)

    # Diagonal weave specks for fabric texture
    for y in range(16):
        for x in range(16):
            if (x + y) % 5 == 0:
                px(img, x, y, CANVAS_LIGHT)
            elif (x - y) % 7 == 0:
                px(img, x, y, CANVAS_SHADOW)

    # Wear / sun-bleached patches (clusters)
    for (x, y) in [(2, 3), (3, 3), (10, 6), (11, 6), (5, 11), (6, 11), (13, 12)]:
        px(img, x, y, CANVAS_LIGHT)

    # Vertical seam stitch down the center
    for y in range(0, 16, 2):
        px(img, 7, y, CANVAS_STITCH)
        px(img, 8, y, CANVAS_SHADOW)

    # Edge darken (gives the panel some depth at block boundaries)
    rect(img, 0, 0, 15, 0, CANVAS_SHADOW)
    rect(img, 0, 15, 15, 15, CANVAS_SHADOW)
    rect(img, 0, 0, 0, 15, CANVAS_SHADOW)
    rect(img, 15, 0, 15, 15, CANVAS_SHADOW)

    return img


# ── Mailbox v2 — block-style (full 16x16 face, no transparency) ─
# The previous sprite was an item-sized icon centered on transparency, which
# reads as a placeholder when applied to all 6 faces of a cube. This version
# fills the face: red body panel, vertical seam, slot, latch, riveted corners.
def mailbox_block() -> Image.Image:
    img = Image.new("RGBA", (16, 16), MB_RED)

    # Vertical highlight strip on the left
    rect(img, 0, 0, 1, 15, MB_RED_HL)
    # Vertical shadow strip on the right
    rect(img, 14, 0, 15, 15, MB_RED_DARK)
    # Top dome highlight (1px band)
    rect(img, 2, 0, 13, 0, MB_RED_HL)
    # Bottom shadow band
    rect(img, 2, 15, 13, 15, MB_RED_DARK)

    # Horizontal mail slot (centered)
    rect(img, 4, 6, 11, 8, MB_BLACK)
    rect(img, 4, 6, 11, 6, (50, 50, 50))   # slot lip highlight
    rect(img, 4, 8, 11, 8, (5, 5, 5))      # slot lip shadow

    # Round latch below the slot
    rect(img, 7, 11, 8, 12, MB_BLACK)
    px(img, 7, 11, (90, 90, 90))

    # Yellow flag emblem in the top-right corner
    rect(img, 12, 2, 13, 4, MB_FLAG)
    px(img, 12, 2, (180, 140, 40))
    # Flag pole
    px(img, 13, 5, (60, 60, 60))

    # Rivets in the corners
    for (x, y) in [(2, 2), (13, 2), (2, 13), (13, 13)]:
        px(img, x, y, (40, 15, 15))

    return img


# ── Post Office v2 — block-style facade ─────────────────────
# A small post-office building face: brick wall, "POST" plaque, awning hint.
def post_office_block() -> Image.Image:
    img = Image.new("RGBA", (16, 16), BRICK_RED)

    # Brick courses with mortar lines (offset every other row)
    for y in range(16):
        # mortar line every 4 rows
        if y % 4 == 0:
            rect(img, 0, y, 15, y, MORTAR)
        else:
            # vertical mortar joints, offset by course
            offset = 0 if (y // 4) % 2 == 0 else 4
            for x in range(16):
                if (x + offset) % 8 == 0:
                    px(img, x, y, MORTAR)
                else:
                    # subtle brick tone variation
                    if (x + y) % 3 == 0:
                        px(img, x, y, BRICK_DARK)

    # Cream-colored "POST" plaque (centered)
    rect(img, 2, 5, 13, 10, CREAM)
    rect(img, 2, 5, 13, 5, ENVELOPE_LINE)   # top border
    rect(img, 2, 10, 13, 10, ENVELOPE_LINE) # bottom border
    rect(img, 2, 5, 2, 10, ENVELOPE_LINE)   # left border
    rect(img, 13, 5, 13, 10, ENVELOPE_LINE) # right border

    # "POST" lettering — 4 chunky chars on the plaque
    # P
    rect(img, 3, 7, 4, 8, ENVELOPE_LINE); px(img, 3, 6, ENVELOPE_LINE)
    # O
    rect(img, 6, 6, 7, 9, ENVELOPE_LINE); px(img, 6, 7, CREAM); px(img, 7, 7, CREAM); px(img, 6, 8, CREAM); px(img, 7, 8, CREAM)
    # S (simplified stub)
    rect(img, 9, 6, 10, 6, ENVELOPE_LINE); px(img, 9, 7, ENVELOPE_LINE); rect(img, 9, 8, 10, 8, ENVELOPE_LINE); px(img, 10, 9, ENVELOPE_LINE); rect(img, 9, 9, 10, 9, ENVELOPE_LINE)
    # T
    rect(img, 11, 6, 12, 6, ENVELOPE_LINE); rect(img, 11, 7, 11, 9, ENVELOPE_LINE)

    # Red stamp accent in the top-right
    rect(img, 12, 1, 14, 3, STAMP_RED)
    px(img, 13, 2, (255, 220, 220))

    # Awning suggestion (alternating red/cream stripes at the top)
    for x in range(16):
        if (x // 2) % 2 == 0:
            px(img, x, 1, (210, 70, 70))
        else:
            px(img, x, 1, CREAM)
    rect(img, 0, 0, 15, 0, ENVELOPE_LINE)

    return img


# ── Portal Field ───────────────────────────────────────────
# Translucent swirling-energy texture for the walk-through portal column.
# Renders with alpha blending — the dark areas read as voids, the bright
# center streaks read as concentrated portal energy.
def portal_field() -> Image.Image:
    import math
    img = Image.new("RGBA", (16, 16), (0, 0, 0, 0))
    cx, cy = 7.5, 7.5
    for y in range(16):
        for x in range(16):
            dx = x - cx
            dy = y - cy
            dist = math.sqrt(dx * dx + dy * dy)
            angle = math.atan2(dy, dx)
            # swirl: angle modulated by distance
            swirl = math.sin(angle * 3 + dist * 1.5) * 0.5 + 0.5
            # purple/violet base
            r = int(80 + swirl * 100)
            g = int(20 + swirl * 30)
            b = int(140 + swirl * 90)
            # alpha falls off near edges, bright in middle bands
            edge = max(0, 1 - dist / 8.5)
            alpha = int(160 * edge + swirl * 60)
            alpha = max(0, min(220, alpha))
            img.putpixel((x, y), (r, g, b, alpha))
    # Bright vertical core streaks
    for y in range(16):
        for x in (7, 8):
            r, g, b, _ = img.getpixel((x, y))
            img.putpixel((x, y), (min(255, r + 60), min(255, g + 30), min(255, b + 60), 220))
    return img


def main() -> None:
    save(smart_crafting_table(), "smart-crafting-addon/smart_crafting_RP/textures/blocks/smart_crafting_table.png")
    save(post_office_block(), "postal-service-addon/postal_service_RP/textures/blocks/post_office.png")
    save(mailbox_block(), "postal-service-addon/postal_service_RP/textures/blocks/mailbox.png")
    save(tent_canvas(), "camping-supplies-addon/camping_supplies_RP/textures/blocks/tent_canvas.png")
    save(portal_field(), "lobby-addon/lobby_transfer_RP/textures/blocks/portal_field.png")


if __name__ == "__main__":
    main()