from __future__ import annotations

from typing import Any, Mapping


CAMERA_DIRECTIONS = (
    "front-right quarter view",
    "right side view",
    "back-right quarter view",
    "back view",
    "back-left quarter view",
    "left side view",
    "front-left quarter view",
    "front view",
)

CAMERA_ELEVATIONS = ("low-angle shot", "eye-level shot", "elevated shot", "high-angle shot")
CAMERA_DISTANCES = (
    "wide shot",
    "full-body shot",
    "three-quarter body shot",
    "medium shot",
    "close-up",
    "extreme close-up",
)


def is_coworking_scene(scene_text: Any) -> bool:
    text = str(scene_text or "").lower()
    return any(
        term in text
        for term in (
            "coworking",
            "cowork",
            "office lounge",
            "business cafe",
            "work cafe",
            "shared office",
            "corporate office",
            "office after hours",
            "laptops",
            "warm desks",
            "repeating desks",
            "glass partitions",
            "copier alcove",
        )
    )


def _compact_label(value: Any, compact_labels: Mapping[str, str] | None = None) -> str:
    text = str(value or "")
    if compact_labels and text in compact_labels:
        return compact_labels[text]
    return text.replace("_", " ")


def camera_geometry_phrase(parsed: dict[str, Any], compact_labels: Mapping[str, str] | None = None) -> str:
    direction = str(parsed.get("orbit_direction") or "").strip()
    elevation = str(parsed.get("orbit_elevation_label") or "").strip()
    distance = str(parsed.get("orbit_distance_label") or "").strip()
    custom = str(parsed.get("custom_camera_prompt") or "").strip()
    if not any((direction, elevation, distance)) and custom:
        return custom
    parts = [part for part in (direction, elevation, distance) if part and part != "auto"]
    if parts:
        return ", ".join(parts)
    compact_parts = [
        _compact_label(parsed.get(key), compact_labels)
        for key in ("shot_size", "angle", "distance")
    ]
    compact_parts = [part for part in compact_parts if part and part != "auto"]
    return ", ".join(compact_parts)


def camera_direction_from_text(text: Any) -> str:
    source = str(text or "").lower()
    for label in CAMERA_DIRECTIONS:
        if label in source:
            return label
    return ""


def camera_elevation_from_text(text: Any) -> str:
    source = str(text or "").lower()
    for label in CAMERA_ELEVATIONS:
        if label in source:
            return label
    return ""


def camera_distance_from_text(text: Any) -> str:
    source = str(text or "").lower()
    for label in CAMERA_DISTANCES:
        if label in source:
            return label
    return ""


def coworking_location_profile(scene_text: Any) -> dict[str, str]:
    text = str(scene_text or "").lower()
    if "business cafe" in text or "work cafe" in text or "cafe" in text:
        return {
            "layout_label": "Business cafe camera layout",
            "place": "business cafe coworking counter",
            "foreground": "counter edge, laptop corner, and small plant",
            "midground": "bar stools, warm desk lamps, and coffee-counter work spots",
            "background": "plants, mirror strip, menu wall, and repeated cafe work tables",
        }
    if "corporate office" in text or "office after hours" in text or "copier" in text:
        return {
            "layout_label": "Office camera layout",
            "place": "empty after-hours office",
            "foreground": "copier alcove edge, chair backs, and nearest desk corner",
            "midground": "repeating desks, glass partition seams, and muted monitor glow",
            "background": "rows of empty workstations, city-light windows, and quiet office depth",
        }
    return {
        "layout_label": "Coworking camera layout",
        "place": "coworking lounge",
        "foreground": "near desk edge, laptop corner, and chair back",
        "midground": "warm work desks, laptop tables, and glass partition seams",
        "background": "tall windows, repeated desk rows, plants, and soft shared-office depth",
    }


def coworking_subject_terms(subject_kind: str, pov_labels: list[str] | None = None) -> tuple[str, str]:
    if pov_labels:
        return "the visible partner", "them"
    if subject_kind == "woman":
        return "the woman", "her"
    if subject_kind == "man":
        return "the man", "him"
    if subject_kind == "couple":
        return "the couple", "them"
    return "the subjects", "them"


def coworking_direction_detail(
    direction: str,
    profile: dict[str, str],
    pov_labels: list[str] | None = None,
    subject_kind: str = "subjects",
) -> str:
    direction = str(direction or "").strip().lower()
    foreground = profile["foreground"]
    midground = profile["midground"]
    background = profile["background"]
    subject, pronoun = coworking_subject_terms(subject_kind, pov_labels)
    if pov_labels:
        if "right side" in direction:
            return f"{subject} is in right-side profile; {midground} run behind {pronoun} toward {background}, with coworking details kept at the frame edges"
        if "left side" in direction:
            return f"{subject} is in left-side profile; {midground} run behind {pronoun} toward {background}, with coworking details kept at the frame edges"
        if "back-right" in direction or "back-left" in direction:
            return f"{subject} stays close in one continuous diagonal first-person body angle; {midground} lead toward {background} behind {pronoun} at the edges, not in the lower foreground"
        if direction == "back view":
            return f"the viewer looks past {subject}'s back toward {midground}, then into {background}; only POV body cues sit low in frame"
        if "front-right" in direction or "front-left" in direction:
            return f"{subject} fills the first-person front-quarter view; {midground} recede diagonally behind {pronoun} toward {background}"
        return f"{subject} faces the viewer in first-person view; {midground} and {background} stay behind {pronoun}, not between viewer and body"
    if "right side" in direction or "left side" in direction:
        return f"{subject} is held in side profile along the {foreground}; {midground} run laterally behind {pronoun}, with {background} still readable"
    if "back-right" in direction or "back-left" in direction:
        return f"{subject} is viewed from a rear-quarter angle, partly turning back toward camera; the {foreground} stays low in frame while {midground} lead into {background}"
    if direction == "back view":
        return f"{subject} is seen from behind with the {foreground} at camera side, facing into {midground} and {background}"
    if "front-right" in direction or "front-left" in direction:
        return f"{subject} is placed beside the {foreground}; {midground} recede diagonally behind {pronoun} toward {background}"
    return f"{subject} faces camera beside the {foreground}; {midground} sit between {pronoun} and {background}"


def coworking_distance_detail(
    distance: str,
    profile: dict[str, str],
    subject_kind: str,
    pov_labels: list[str] | None = None,
) -> str:
    distance = str(distance or "").strip().lower()
    subject, _pronoun = coworking_subject_terms(subject_kind, pov_labels)
    if pov_labels:
        if "wide" in distance or "full-body" in distance or "full body" in distance:
            return f"wide POV keeps {subject} readable with coworking context behind them"
        if "close" in distance:
            return f"close POV keeps {subject} dominant with coworking context only at the sides or background"
        return f"medium POV keeps {subject} dominant with room context behind them"
    if "wide" in distance or "full-body" in distance or "full body" in distance:
        return "wide crop keeps floor aisle, table rows, and window depth readable"
    if "close" in distance:
        return "close crop keeps one desk or counter anchor visible"
    return f"medium crop keeps {subject} dominant"


def coworking_elevation_detail(
    elevation: str,
    profile: dict[str, str],
    subject_kind: str,
    pov_labels: list[str] | None = None,
) -> str:
    elevation = str(elevation or "").strip().lower()
    subject, pronoun = coworking_subject_terms(subject_kind, pov_labels)
    if pov_labels:
        if "low-angle" in elevation:
            return f"low angle keeps POV body cues low while windows and partition lines rise behind {pronoun}"
        if "elevated" in elevation:
            return f"elevated POV keeps the viewer's eye line slightly higher than {subject}, with tabletop and glass lines only behind or at the side edges"
        if "high-angle" in elevation:
            return f"high angle looks down from the viewer's position with desks and aisle only in the background"
        return f"eye-level angle keeps tabletop lines and glass seams behind {pronoun}"
    if "low-angle" in elevation:
        return f"low angle keeps the foreground desk edge low while windows and partitions rise behind {pronoun}"
    if "elevated" in elevation:
        return f"elevated angle shows tabletop surfaces, laptop shapes, chairs, and walking aisle around {pronoun}"
    if "high-angle" in elevation:
        return f"high angle shows the desk grid, chairs, floor aisle, and placement of {pronoun}"
    return f"eye-level angle keeps tabletop lines and glass seams straight"


def coworking_camera_scene_directive(
    scene_text: Any,
    parsed: dict[str, Any],
    pov_labels: list[str] | None = None,
    subject_kind: str = "subjects",
    compact_labels: Mapping[str, str] | None = None,
) -> str:
    if not is_coworking_scene(scene_text):
        return ""
    direction = str(parsed.get("orbit_direction") or "").strip()
    elevation = str(parsed.get("orbit_elevation_label") or "").strip()
    distance = str(parsed.get("orbit_distance_label") or "").strip()
    custom_prompt = str(parsed.get("custom_camera_prompt") or "").strip()
    direction = direction or camera_direction_from_text(custom_prompt)
    elevation = elevation or camera_elevation_from_text(custom_prompt)
    distance = distance or camera_distance_from_text(custom_prompt)
    if not any((direction, elevation, distance, custom_prompt)):
        return ""
    profile = coworking_location_profile(scene_text)
    direction_detail = coworking_direction_detail(direction, profile, pov_labels, subject_kind)
    distance_detail = coworking_distance_detail(distance, profile, subject_kind, pov_labels)
    elevation_detail = coworking_elevation_detail(elevation, profile, subject_kind, pov_labels)
    if pov_labels:
        return (
            f"{profile['layout_label']} from POV: {direction_detail}. "
            f"{distance_detail}; {elevation_detail}; use the multiangle camera only as first-person spatial geometry."
        )
    geometry = camera_geometry_phrase(parsed, compact_labels)
    geometry_clause = f" ({geometry})" if geometry else ""
    return (
        f"{profile['layout_label']}{geometry_clause}: {direction_detail}; "
        f"{distance_detail}; {elevation_detail}."
    )


def coworking_composition_prompt(scene_text: Any, composition: Any, subject_kind: str = "subjects") -> str:
    text = str(composition or "").strip()
    if not text or not is_coworking_scene(scene_text):
        return text
    lower = text.lower()
    if not any(term in lower for term in ("office-lobby", "office lobby", "walking composition", "outfit-check")):
        return text
    subject, _pronoun = coworking_subject_terms(subject_kind)
    if subject_kind == "woman":
        return "coworking lounge selfie frame with the woman near a desk edge and tall-window depth behind her"
    if subject_kind == "man":
        return "coworking lounge portrait frame with the man near a desk edge and tall-window depth behind him"
    return f"coworking lounge frame with {subject} near a desk edge and tall-window depth behind them"


def camera_scene_directive_for_context(
    scene_text: Any,
    parsed_camera_config: dict[str, Any],
    pov_labels: list[str] | None = None,
    subject_kind: str = "subjects",
    compact_labels: Mapping[str, str] | None = None,
) -> str:
    if (
        parsed_camera_config.get("camera_detail") == "off"
        or parsed_camera_config.get("camera_mode") == "disabled"
    ):
        return ""
    return coworking_camera_scene_directive(
        scene_text,
        parsed_camera_config,
        pov_labels,
        subject_kind,
        compact_labels,
    )