#!/usr/bin/env python3
"""
Generate the shipped workflow templates in workflows/.

Hand-maintaining four ComfyUI workflow files means hand-maintaining node ids,
link ids, and slot indices across all of them — the kind of bookkeeping that is
silently wrong until someone drags the file onto a canvas. This builds them from
a description instead, so the ids are correct by construction.

Layout policy: node positions are never guessed. Every node's height
is estimated from its widget count, and nodes stack per column with a fixed
vertical gap — so no template can ship with overlapping nodes at default sizes.
A test asserts that invariant on the committed files.

Instruction policy: user-facing instructions live in visible core
`Note` nodes on the canvas. `extra.styleref.notes` carries only a one-line
provenance string — ComfyUI never renders it, so it must not carry anything a
user needs to read.

Run after changing a node's inputs or outputs:

    python scripts/build_workflows.py

CI checks the committed files match this script's output.
"""

from __future__ import annotations

import json
import os
import sys
from typing import Any

_PACK_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if _PACK_ROOT not in sys.path:
    sys.path.insert(0, _PACK_ROOT)

# Single-sourced from the node itself (the Facets output list is data-driven
# and long — duplicating it here would guarantee drift).
from styleref_nodes.facets import StyleRefFacets  # noqa: E402

WORKFLOW_DIR = os.path.join(_PACK_ROOT, "workflows")

PROVENANCE = "Generated by scripts/build_workflows.py — edit the script, not this file."

# Slot layouts, mirroring each node's RETURN_TYPES / INPUT_TYPES order.
OUTPUTS = {
    "StyleRefLoad": [
        ("style", "STYLEREF_STYLE"),
        ("search_results", "STRING"),
    ],
    "StyleRefApply": [("positive", "STRING"), ("negative", "STRING"), ("attribution", "STRING")],
    "StyleRefFacets": list(zip(StyleRefFacets.RETURN_NAMES, StyleRefFacets.RETURN_TYPES)),
    "StyleRefReferenceImages": [("images", "IMAGE"), ("count", "INT")],
    "StyleRefLogin": [("status", "STRING")],
    "CheckpointLoaderSimple": [("MODEL", "MODEL"), ("CLIP", "CLIP"), ("VAE", "VAE")],
    "UNETLoader": [("MODEL", "MODEL")],
    "CLIPLoader": [("CLIP", "CLIP")],
    "VAELoader": [("VAE", "VAE")],
    "CLIPTextEncode": [("CONDITIONING", "CONDITIONING")],
    "ConditioningZeroOut": [("CONDITIONING", "CONDITIONING")],
    "EmptyLatentImage": [("LATENT", "LATENT")],
    "EmptySD3LatentImage": [("LATENT", "LATENT")],
    "KSampler": [("LATENT", "LATENT")],
    "VAEDecode": [("IMAGE", "IMAGE")],
    "LoadImage": [("IMAGE", "IMAGE"), ("MASK", "MASK")],
    "SaveImage": [],
    "PreviewImage": [],
    "PreviewAny": [],
    "Note": [],
}

INPUTS = {
    "StyleRefApply": [("style", "STYLEREF_STYLE")],
    "StyleRefFacets": [("style", "STYLEREF_STYLE")],
    "StyleRefReferenceImages": [("style", "STYLEREF_STYLE")],
    "CLIPTextEncode": [("clip", "CLIP"), ("text", "STRING")],
    "ConditioningZeroOut": [("conditioning", "CONDITIONING")],
    "KSampler": [
        ("model", "MODEL"),
        ("positive", "CONDITIONING"),
        ("negative", "CONDITIONING"),
        ("latent_image", "LATENT"),
    ],
    "VAEDecode": [("samples", "LATENT"), ("vae", "VAE")],
    "SaveImage": [("images", "IMAGE")],
    "PreviewImage": [("images", "IMAGE")],
    # PreviewAny accepts anything — ComfyUI's wildcard type.
    "PreviewAny": [("source", "*")],
}

# ── layout constants ─────────────────────────────────────────────────────────

NODE_WIDTH = 320
HEADER_H = 60          # title bar
SLOT_H = 24            # one input/output slot row
WIDGET_ROW_H = 28      # one single-line widget
MULTILINE_H = 90       # one multiline text widget
V_GAP = 48             # vertical gap between stacked nodes
COL_W = 380            # column pitch; > NODE_WIDTH so columns never touch

# Widgets that render multiline per node type (by widget index).
MULTILINE_WIDGETS = {
    "StyleRefApply": {0, 2},   # subject, extra_negative
    "CLIPTextEncode": {0},
    "Note": {0},
}

# Node titles longer than this truncate in both frontends.
MAX_TITLE = 28

# The gallery style every ready-to-run template loads. Picked for how legible
# its effect is on the first queue: it compiles to tempera-on-panel technique
# and a muted Renaissance palette, so the render is obviously not what the base
# checkpoint would have produced alone. Two styles that read well on the
# gallery make poor demos here — a naturalistic photography style lands close
# to what SDXL does unprompted (the node looks like it did nothing), and a
# typography-led graphic style asks the sampler for headline text it renders as
# gibberish. This one carries no type at all and constrains no subject.
GALLERY_STYLE_REF = "sbdlwwly-66ae1a89efdc"  # Renaissance Mythic Classicism

# Placeholder ref for the "your own style" templates. Refs are opaque ids now
# (no name lookup), so the templates ship an obvious placeholder the user swaps
# for their own style's id — or fills via the node's "Search styles…" picker.
OWN_STYLE_REF = "<your style id>"

# Subjects for the consistency grid. Deliberately varied — interior, open
# landscape, night exterior — because the grid's whole claim is that one style
# holds across unrelated subjects. All three are plain scenes with no style
# words of their own, so anything stylistic in the render came from StyleRef.
GRID_SUBJECTS = [
    "two friends flipping through crates of vinyl in a record shop",
    "a lone surfer walking back along the beach at dusk",
    "a roadside diner at night seen from the parking lot",
]

# The single-subject templates all use the first grid subject, so a user who
# opens two templates sees the same prompt render consistently.
DEMO_SUBJECT = GRID_SUBJECTS[0]

# Frontend model-download metadata: a missing checkpoint becomes a guided
# download instead of a red error.
MODEL_SDXL = {
    "name": "sd_xl_base_1.0.safetensors",
    "url": "https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0/resolve/main/sd_xl_base_1.0.safetensors",
    "directory": "checkpoints",
}

# The sections the Facets templates surface on canvas. Facets has 24 outputs;
# previewing all of them would be a wall of nodes, so the templates show a
# representative six and the note points at the rest. Names are looked up in
# the node's own RETURN_NAMES, so a schema reorder can never mis-slot them.
FACET_SHOWCASE = [
    "colors",
    "light_shadow",
    "mood_personality",
    "surface_material",
    "shape_language",
    "guardrails",
]

# Z-Image Turbo (Tongyi-MAI) — an S3-DiT model with its own loader stack (a
# UNET, a Qwen-3-4B text encoder, and a Flux-style 16-channel VAE), not a
# single checkpoint. URLs are the Comfy-Org repacks. It compiles well from the
# `diffusion` target: qwen handles the tag-weighted output that SDXL/SD1.5 use.
MODEL_ZIMAGE_UNET = {
    "name": "z_image_turbo_bf16.safetensors",
    "url": "https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/diffusion_models/z_image_turbo_bf16.safetensors",
    "directory": "diffusion_models",
}
MODEL_ZIMAGE_CLIP = {
    "name": "qwen_3_4b.safetensors",
    "url": "https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/text_encoders/qwen_3_4b.safetensors",
    "directory": "text_encoders",
}
MODEL_ZIMAGE_VAE = {
    "name": "ae.safetensors",
    "url": "https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/vae/ae.safetensors",
    "directory": "vae",
}
MODELS_ZIMAGE = [MODEL_ZIMAGE_UNET, MODEL_ZIMAGE_CLIP, MODEL_ZIMAGE_VAE]


def node_height(node_type: str, widgets: list[Any]) -> int:
    """
    Estimated on-canvas height: header + one row per input/output
    slot + one row per widget. The slot term matters for wide-output nodes —
    Facets alone has dozens of outputs.
    """
    slots = max(len(INPUTS.get(node_type, [])), len(OUTPUTS.get(node_type, [])))
    multiline = MULTILINE_WIDGETS.get(node_type, set())
    rows = sum(1 for i in range(len(widgets)) if i not in multiline)
    tall = sum(1 for i in range(len(widgets)) if i in multiline)
    return HEADER_H + slots * SLOT_H + rows * WIDGET_ROW_H + tall * MULTILINE_H


class Graph:
    """
    Workflow builder with column layout.

    `place(node_type, col, …)` stacks nodes top-to-bottom within a column,
    spacing them by each node's estimated height plus V_GAP — overlap-free by
    construction. Columns are indexed (0, 1, 2, …) and spaced COL_W apart.
    """

    def __init__(self) -> None:
        self.nodes: list[dict[str, Any]] = []
        self.links: list[list[Any]] = []
        self._node_id = 0
        self._link_id = 0
        self._cursor: dict[int, int] = {}  # column index → next free y

    def place(
        self,
        node_type: str,
        col: int,
        widgets: list[Any] | None = None,
        title: str | None = None,
        height: int | None = None,
    ) -> int:
        if title is not None and len(title) > MAX_TITLE:
            raise ValueError(f"title longer than {MAX_TITLE} chars truncates: {title!r}")

        widgets = widgets or []
        h = height if height is not None else node_height(node_type, widgets)
        x = 40 + col * COL_W
        y = self._cursor.get(col, 60)
        self._cursor[col] = y + h + V_GAP

        self._node_id += 1
        node: dict[str, Any] = {
            "id": self._node_id,
            "type": node_type,
            "pos": [x, y],
            "size": [NODE_WIDTH, h],
            "flags": {},
            "order": len(self.nodes),
            "mode": 0,
            "inputs": [
                {"name": name, "type": kind, "link": None}
                for name, kind in INPUTS.get(node_type, [])
                # `text` on CLIPTextEncode is a widget until something connects
                # to it; declaring it as an input is what lets Apply drive it.
            ],
            "outputs": [
                {"name": name, "type": kind, "links": [], "slot_index": index}
                for index, (name, kind) in enumerate(OUTPUTS.get(node_type, []))
            ],
            "properties": {"Node name for S&R": node_type},
            "widgets_values": widgets,
        }
        if title:
            node["title"] = title
        self.nodes.append(node)
        return self._node_id

    def note(self, col: int, text: str, title: str = "Read me") -> int:
        """A visible core Note node — the instruction channel."""
        # Height scales with the text so long notes don't clip at default size.
        h = HEADER_H + 30 + 18 * (text.count("\n") + len(text) // 55)
        return self.place("Note", col, [text], title=title, height=h)

    def link(self, src: int, src_slot: int, dst: int, dst_slot: int) -> None:
        src_node = self._node(src)
        dst_node = self._node(dst)
        kind = src_node["outputs"][src_slot]["type"]

        self._link_id += 1
        self.links.append([self._link_id, src, src_slot, dst, dst_slot, kind])
        src_node["outputs"][src_slot]["links"].append(self._link_id)
        dst_node["inputs"][dst_slot]["link"] = self._link_id

    def _node(self, node_id: int) -> dict[str, Any]:
        return next(n for n in self.nodes if n["id"] == node_id)

    def to_json(self, models: list[dict[str, str]] | None = None) -> dict[str, Any]:
        payload: dict[str, Any] = {
            "last_node_id": self._node_id,
            "last_link_id": self._link_id,
            "nodes": self.nodes,
            "links": self.links,
            "groups": [],
            "config": {},
            "extra": {"styleref": {"notes": PROVENANCE}},
            "version": 0.4,
        }
        if models:
            payload["models"] = models
        return payload


# Shared widget rows (single source for the values the nodes expect, in the
# INPUT_TYPES order of each node).
def load_widgets(style_ref: str) -> list[Any]:
    # style_ref, search, category, use_cache, save_to_library
    return [style_ref, "", "any", True, False]


def apply_widgets(subject: str, target: str) -> list[Any]:
    # subject, target, extra_negative, compact, sections, subject_first
    # Targets mirror the web app's copy list: diffusion drives SDXL/SD1.5
    # checkpoints, flux drives FLUX ones.
    return [subject, target, "", False, "", True]


def sampler_widgets(cfg: float) -> list[Any]:
    # Seeds randomize: a fixed seed makes the second queue a silent
    # cache no-op — deadly in a demo.
    return [0, "randomize", 25, cfg, "euler", "normal", 1.0]


def _sdxl_tail(graph: Graph, apply_node: int, checkpoint: int, col: int) -> None:
    """Apply → two CLIP encoders → KSampler → VAEDecode → SaveImage."""
    positive = graph.place("CLIPTextEncode", col, [""], title="Positive (from StyleRef)")
    negative = graph.place("CLIPTextEncode", col, [""], title="Negative (from StyleRef)")
    latent = graph.place("EmptyLatentImage", col, [1024, 1024, 1])
    sampler = graph.place("KSampler", col + 1, sampler_widgets(cfg=7.0))
    decode = graph.place("VAEDecode", col + 2)
    save = graph.place("SaveImage", col + 2, ["StyleRef"])

    graph.link(apply_node, 0, positive, 1)
    graph.link(apply_node, 1, negative, 1)
    graph.link(checkpoint, 1, positive, 0)
    graph.link(checkpoint, 1, negative, 0)
    graph.link(checkpoint, 0, sampler, 0)
    graph.link(positive, 0, sampler, 1)
    graph.link(negative, 0, sampler, 2)
    graph.link(latent, 0, sampler, 3)
    graph.link(sampler, 0, decode, 0)
    graph.link(checkpoint, 2, decode, 1)
    graph.link(decode, 0, save, 0)


def _facet_board(graph: Graph, load: int, col: int) -> int:
    """
    Load → Facets, with a Preview Any on each showcased section.

    Facets outputs plain STRINGs, so the only thing a template can *show*
    without depending on third-party packs is the text itself — which is the
    point: seeing `colors` as readable lines is what tells a user they can drag
    that output into any text input downstream. Returns the Facets node id so
    callers can wire more sections if they want.
    """
    facets = graph.place("StyleRefFacets", col, [], title="Facets — every section")
    graph.link(load, 0, facets, 0)

    for section in FACET_SHOWCASE:
        slot = StyleRefFacets.RETURN_NAMES.index(section)
        preview = graph.place(
            "PreviewAny", col + 1, [], title=f"Facet — {section.replace('_', ' ')}"
        )
        graph.link(facets, slot, preview, 0)

    return facets


def _preview(graph: Graph, apply_node: int, col: int, suffix: str = "") -> None:
    """
    Compiled prompts made visible, in every template: Preview Any on Apply's
    positive and negative kills the "empty text box on the encoder looks
    broken" perception and teaches what StyleRef actually produces.
    """
    pos = graph.place("PreviewAny", col, [], title=f"Compiled positive{suffix}")
    neg = graph.place("PreviewAny", col, [], title=f"Compiled negative{suffix}")
    graph.link(apply_node, 0, pos, 0)
    graph.link(apply_node, 1, neg, 0)


def zimage_sampler_widgets() -> list[Any]:
    """
    Z-Image Turbo defaults: ~8 steps, CFG 1.0, euler/simple.

    CFG stays at 1.0 because Z-Image has no negative channel to activate (see
    `_zimage_tail`) — raising it only oversaturates and slows the sample down.
    """
    return [0, "randomize", 8, 1.0, "euler", "simple", 1.0]


def _zimage_loaders(graph: Graph) -> tuple[int, int, int]:
    """Place the Z-Image UNET + CLIP + VAE loaders. Returns their node ids."""
    unet = graph.place(
        "UNETLoader", 0, [MODEL_ZIMAGE_UNET["name"], "default"], title="Z-Image UNET"
    )
    clip = graph.place(
        "CLIPLoader", 0, [MODEL_ZIMAGE_CLIP["name"], "lumina2", "default"], title="Qwen text encoder"
    )
    vae = graph.place("VAELoader", 0, [MODEL_ZIMAGE_VAE["name"]], title="Z-Image VAE")
    return unet, clip, vae


def _zimage_tail(
    graph: Graph, apply_node: int, unet: int, clip: int, vae: int, col: int
) -> None:
    """
    Apply → one CLIP encoder → KSampler → VAEDecode → SaveImage, on the Z-Image
    loader stack.

    **No negative encoder.** Z-Image's official pipeline runs without
    classifier-free guidance — the authors state the model does not use negative
    prompts at all — so a second encoder here would be dead weight wired to a
    sampler input that cannot read it. The sampler's negative gets a zeroed
    conditioning instead, the same shape a FLUX graph uses. Apply's `negative`
    output stays connected to its Preview Any so the compiled exclusions are
    still readable and copyable; anything you need from them belongs in
    `subject` on Apply.
    """
    positive = graph.place("CLIPTextEncode", col, [""], title="Positive (from StyleRef)")
    zero_out = graph.place("ConditioningZeroOut", col, [], title="Z-Image has no negative")
    latent = graph.place("EmptySD3LatentImage", col, [1024, 1024, 1])
    sampler = graph.place("KSampler", col + 1, zimage_sampler_widgets())
    decode = graph.place("VAEDecode", col + 2)
    save = graph.place("SaveImage", col + 2, ["StyleRef"])

    graph.link(apply_node, 0, positive, 1)
    graph.link(clip, 0, positive, 0)
    graph.link(unet, 0, sampler, 0)
    graph.link(positive, 0, sampler, 1)
    graph.link(positive, 0, zero_out, 0)
    graph.link(zero_out, 0, sampler, 2)
    graph.link(latent, 0, sampler, 3)
    graph.link(sampler, 0, decode, 0)
    graph.link(vae, 0, decode, 1)
    graph.link(decode, 0, save, 0)


_ZIMAGE_SETUP_NOTE = (
    "Z-Image Turbo (S3-DiT). Three model files download on first use: the UNET "
    "(diffusion_models/), the Qwen text encoder (text_encoders/), and the VAE "
    "(vae/).\n"
    "Sampler defaults are turbo: 8 steps, CFG 1.0, euler/simple.\n"
    "Z-Image takes no negative prompt. The model runs without classifier-free "
    "guidance, so there is no negative encoder on this canvas — the sampler's "
    "negative input gets a zeroed conditioning. StyleRef still compiles the "
    "negative and previews it; put anything you need from it into `subject` on "
    "Apply as a positive phrase (\"fully clothed\", \"no text or watermark\"). "
    "Raising CFG does not bring the negative back.\n"
    "Style prompts use the `diffusion` target — Z-Image reads the same "
    "tag-weighted output SDXL/SD1.5 use."
)


def workflow_zimage_01_quickstart() -> dict[str, Any]:
    """Z-Image quickstart: Load a gallery style → Apply → generate."""
    g = Graph()
    g.note(
        0,
        "Z-Image quickstart — no account needed.\n"
        "1. Queue — the three Z-Image files download on first run.\n"
        "2. Change `subject` on StyleRef Apply and queue again (seeds randomize).\n"
        "Swap `style_ref` on StyleRef Load for any gallery slug.\n\n" + _ZIMAGE_SETUP_NOTE,
        title="Z-Image quickstart",
    )
    load = g.place(
        "StyleRefLoad", 0, load_widgets(GALLERY_STYLE_REF), title="Load — swap this slug"
    )
    unet, clip, vae = _zimage_loaders(g)
    apply_node = g.place(
        "StyleRefApply", 1, apply_widgets(DEMO_SUBJECT, "diffusion")
    )
    g.link(load, 0, apply_node, 0)
    _preview(g, apply_node, 1)
    _zimage_tail(g, apply_node, unet, clip, vae, col=2)

    return g.to_json(models=MODELS_ZIMAGE)


def workflow_zimage_02_consistency() -> dict[str, Any]:
    """One style across three subjects on Z-Image."""
    g = Graph()
    g.note(
        0,
        "Z-Image consistency grid — no account needed.\n"
        "One style feeds three Apply nodes with three subjects; each renders "
        "through its own Z-Image sampler. Queue once and compare: one style, "
        "many subjects, a coherent set within this model.\n\n" + _ZIMAGE_SETUP_NOTE,
        title="Z-Image consistency",
    )
    load = g.place("StyleRefLoad", 0, load_widgets(GALLERY_STYLE_REF))
    unet, clip, vae = _zimage_loaders(g)

    subjects = GRID_SUBJECTS
    for index, subject in enumerate(subjects):
        apply_node = g.place(
            "StyleRefApply", 1, apply_widgets(subject, "diffusion"), title=f"Subject {index + 1}"
        )
        g.link(load, 0, apply_node, 0)
        _preview(g, apply_node, 1, suffix=f" {index + 1}")
        _zimage_tail(g, apply_node, unet, clip, vae, col=2)

    return g.to_json(models=MODELS_ZIMAGE)


def workflow_zimage_03_your_own_style() -> dict[str, Any]:
    """Your own style, made on the web, rendered on Z-Image."""
    g = Graph()
    g.note(
        0,
        "Use your own style on Z-Image.\n"
        "Extract a style from any image at https://styleref.io, then load it "
        "here by its share slug or id.\n"
        "1. Queue the StyleRef Login node alone first (use its Sign in button).\n"
        "2. Put your style's id in `style_ref` on StyleRef Load, or pick it\n"
        "   with the Search styles… button.\n"
        "3. Queue.\n\n" + _ZIMAGE_SETUP_NOTE,
        title="Z-Image — your style",
    )
    login = g.place("StyleRefLogin", 0, [], title="Login — check status")
    assert login
    load = g.place(
        "StyleRefLoad", 0, load_widgets(OWN_STYLE_REF), title="Load — your own style"
    )
    unet, clip, vae = _zimage_loaders(g)
    apply_node = g.place(
        "StyleRefApply", 1, apply_widgets(DEMO_SUBJECT, "diffusion")
    )
    g.link(load, 0, apply_node, 0)
    _preview(g, apply_node, 1)
    _zimage_tail(g, apply_node, unet, clip, vae, col=2)

    return g.to_json(models=MODELS_ZIMAGE)


def workflow_zimage_04_reference_images() -> dict[str, Any]:
    """Z-Image render + the style's inspiration images side by side."""
    g = Graph()
    g.note(
        0,
        "Z-Image — style prompt and reference images together.\n"
        "StyleRef Apply drives the Z-Image sampler with the style's prompt; "
        "StyleRef Reference Images pulls the style's inspiration images out as "
        "a batch, previewed alongside. The prompt says how the style reads; the "
        "images show how it looks — wire the images into IPAdapter or a "
        "reference-only ControlNet to combine both.\n"
        "Use a gallery style that has inspiration images.\n\n" + _ZIMAGE_SETUP_NOTE,
        title="Z-Image + references",
    )
    load = g.place(
        "StyleRefLoad", 0, load_widgets(GALLERY_STYLE_REF), title="Load — a gallery slug"
    )
    unet, clip, vae = _zimage_loaders(g)

    refs = g.place("StyleRefReferenceImages", 1, [12], title="Reference images")
    ref_preview = g.place("PreviewImage", 1, [], title="Inspiration images")
    g.link(load, 0, refs, 0)
    g.link(refs, 0, ref_preview, 0)

    apply_node = g.place(
        "StyleRefApply", 1, apply_widgets(DEMO_SUBJECT, "diffusion")
    )
    g.link(load, 0, apply_node, 0)
    _preview(g, apply_node, 1)
    _zimage_tail(g, apply_node, unet, clip, vae, col=2)

    return g.to_json(models=MODELS_ZIMAGE)


def workflow_01_quickstart() -> dict[str, Any]:
    """Load a gallery style → Apply → generate. The 60-second demo."""
    g = Graph()
    g.note(
        0,
        "Quickstart — no account needed.\n"
        "1. Set your SDXL checkpoint below (a missing model offers a download).\n"
        "2. Queue. Seeds randomize, so every queue is a fresh image.\n"
        "3. Change `subject` on StyleRef Apply and queue again.\n"
        "Swap `style_ref` on StyleRef Load for any slug from "
        "https://styleref.io/gallery — or use the Search styles… button.",
        title="Quickstart",
    )
    load = g.place(
        "StyleRefLoad",
        0,
        load_widgets(GALLERY_STYLE_REF),
        title="Load — swap this slug",
    )
    checkpoint = g.place("CheckpointLoaderSimple", 0, [MODEL_SDXL["name"]])
    apply_node = g.place(
        "StyleRefApply", 1, apply_widgets(DEMO_SUBJECT, "diffusion")
    )
    _preview(g, apply_node, 1)
    g.link(load, 0, apply_node, 0)
    _sdxl_tail(g, apply_node, checkpoint, col=2)

    return g.to_json(models=[MODEL_SDXL])


def workflow_02_consistency() -> dict[str, Any]:
    """
    One style across three subjects, side by side.

    Consistency is the claim this demonstrates, and it is scoped precisely: the
    same style applied within this one model produces a coherent set. It is not
    a before/after, and not a claim that other tools match this output.
    """
    g = Graph()
    g.note(
        0,
        "Consistency grid — no account needed.\n"
        "One style feeds three Apply nodes with three different subjects; each "
        "renders through its own sampler. Queue once and compare: one style, "
        "many subjects, a coherent set within this model.\n"
        "Change any subject, or swap the style on StyleRef Load, and queue again.",
        title="Consistency grid",
    )
    load = g.place("StyleRefLoad", 0, load_widgets(GALLERY_STYLE_REF))
    checkpoint = g.place("CheckpointLoaderSimple", 0, [MODEL_SDXL["name"]])

    subjects = GRID_SUBJECTS
    for index, subject in enumerate(subjects):
        apply_node = g.place(
            "StyleRefApply", 1, apply_widgets(subject, "diffusion"), title=f"Subject {index + 1}"
        )
        g.link(load, 0, apply_node, 0)
        _preview(g, apply_node, 1, suffix=f" {index + 1}")
        _sdxl_tail(g, apply_node, checkpoint, col=2)

    return g.to_json(models=[MODEL_SDXL])


def workflow_03_your_own_style() -> dict[str, Any]:
    """Your own style, made on the web, loaded here (template 03)."""
    g = Graph()
    g.note(
        0,
        "Use your own style.\n"
        "Extract a style from any image at https://styleref.io — it appears in "
        "your library — then load it here by its share slug or id.\n"
        "1. Queue the StyleRef Login node alone first (Queue runs every node, "
        "so an empty workflow is the clean way). If status says signed out, "
        "set action to `sign in` and queue again.\n"
        "2. Put your style's id in `style_ref` on StyleRef Load, or pick it\n"
        "   with the Search styles… button.\n"
        "3. Set your SDXL checkpoint and queue.",
        title="Your own style",
    )
    login = g.place("StyleRefLogin", 0, [], title="Login — check status")
    assert login  # not linked: it is a status helper, not a data node
    load = g.place(
        "StyleRefLoad",
        0,
        load_widgets(OWN_STYLE_REF),
        title="Load — your own style",
    )
    checkpoint = g.place("CheckpointLoaderSimple", 0, [MODEL_SDXL["name"]])
    apply_node = g.place(
        "StyleRefApply", 1, apply_widgets(DEMO_SUBJECT, "diffusion")
    )
    g.link(load, 0, apply_node, 0)
    _preview(g, apply_node, 1)
    _sdxl_tail(g, apply_node, checkpoint, col=2)

    return g.to_json(models=[MODEL_SDXL])


_FACETS_NOTE = (
    "Inside the style — the Facets node.\n"
    "Apply gives you one prompt string. Facets gives you the style's sections "
    "one output at a time — 24 of them, exactly the sections you see on the "
    "style board at styleref.io, plus the six custom items.\n"
    "Six are previewed here so you can read them. Every other output is on the "
    "node too; drag any of them into a text input.\n"
    "They are plain STRINGs, so they go anywhere text goes: a second CLIP "
    "encoder for regional conditioning, an IPAdapter or ControlNet prompt, a "
    "LoRA trigger line, or your own nodes. That is the escape hatch — use the "
    "palette without taking the whole prompt.\n"
    "The render alongside is the paved road (Apply), so you can compare the "
    "assembled prompt against the parts it was built from."
)


def workflow_04_facets() -> dict[str, Any]:
    """Every section of a style, exposed and readable, next to a normal render."""
    g = Graph()
    g.note(0, _FACETS_NOTE, title="Facets")
    load = g.place(
        "StyleRefLoad",
        0,
        load_widgets(GALLERY_STYLE_REF),
        title="Load — swap this slug",
    )
    checkpoint = g.place("CheckpointLoaderSimple", 0, [MODEL_SDXL["name"]])

    _facet_board(g, load, col=1)

    apply_node = g.place(
        "StyleRefApply", 3, apply_widgets(DEMO_SUBJECT, "diffusion")
    )
    g.link(load, 0, apply_node, 0)
    _preview(g, apply_node, 3)
    _sdxl_tail(g, apply_node, checkpoint, col=4)

    return g.to_json(models=[MODEL_SDXL])


def workflow_zimage_05_facets() -> dict[str, Any]:
    """The Facets story on the Z-Image loader stack."""
    g = Graph()
    g.note(0, _FACETS_NOTE + "\n\n" + _ZIMAGE_SETUP_NOTE, title="Facets on Z-Image")
    load = g.place(
        "StyleRefLoad",
        0,
        load_widgets(GALLERY_STYLE_REF),
        title="Load — swap this slug",
    )
    unet, clip, vae = _zimage_loaders(g)

    _facet_board(g, load, col=1)

    apply_node = g.place(
        "StyleRefApply", 3, apply_widgets(DEMO_SUBJECT, "diffusion")
    )
    g.link(load, 0, apply_node, 0)
    _preview(g, apply_node, 3)
    _zimage_tail(g, apply_node, unet, clip, vae, col=4)

    return g.to_json(models=MODELS_ZIMAGE)


# Keyed by path relative to workflows/. The SDXL set lives at the root; the
# Z-Image set lives in workflows/z-image/.
WORKFLOWS = {
    "01-quickstart.json": workflow_01_quickstart,
    "02-consistency-grid.json": workflow_02_consistency,
    "03-your-own-style.json": workflow_03_your_own_style,
    "04-facets.json": workflow_04_facets,
    "z-image/01-quickstart.json": workflow_zimage_01_quickstart,
    "z-image/02-consistency-grid.json": workflow_zimage_02_consistency,
    "z-image/03-your-own-style.json": workflow_zimage_03_your_own_style,
    "z-image/04-reference-images.json": workflow_zimage_04_reference_images,
    "z-image/05-facets.json": workflow_zimage_05_facets,
}


def main() -> None:
    for relpath, builder in WORKFLOWS.items():
        path = os.path.join(WORKFLOW_DIR, relpath)
        os.makedirs(os.path.dirname(path), exist_ok=True)
        with open(path, "w", encoding="utf-8") as fh:
            json.dump(builder(), fh, indent=2)
            fh.write("\n")
        print(f"wrote {path}")


if __name__ == "__main__":
    main()