/* =============================================================================
 * B06_Section_UI_Page_Ford_Controls.ts
 * 세월교 측벽·BOX암거 구체 조작값 제어 — 측점 제어기
 * (`_UI_Page_Station_Controls.ts`)에서 700줄 제한으로 분리했다(2026-08-25).
 *
 * 데이터 흐름은 집수정과 같다: 세션 사본 + 캐시 `design.ford_adjust`에 함께 실어
 * 3D(코리도)가 같은 값으로 다시 그리게 한다. 관경·수량은 B05 정본(`pipe_points`)이
 * 원천이라 배수관 구간값과 같은 저장기로 되돌려 쓴다.
 * ========================================================================== */

import type { CrossDesign, CrossSection } from "./B06_Section_Api_Fetch";
import { DEFAULT_FORD_WALL_ADJUST } from "./B06_Section_UI_Cross_Ford";
import type { FordAdjust, FordWallAdjust, FordWallRole } from "./B06_Section_UI_Cross_Ford";
import type { FordControl } from "./B06_Section_UI_Cross_Ford_Panel";
import { DEFAULT_BOX_SIDE_ADJUST } from "./B06_Section_UI_Cross_Box";
import type { BoxAdjust, BoxSideAdjust, BoxSideRole } from "./B06_Section_UI_Cross_Box";
import type { BoxControl } from "./B06_Section_UI_Cross_Box_Panel";

export interface FordControlDeps {
  /** 세션 보관 키(프로젝트·노선별). 없으면 세션에 담지 않는다. */
  sessionKey: () => string | null;
  sectionAt: (chainageM: number) => CrossSection | undefined;
  patchCachedDesign: (chainageM: number, patch: Partial<CrossDesign>) => void;
  refreshCard: (chainageM: number) => void;
  /** 관경·수량·날개벽 제원을 B05 정본으로 되돌려 쓴다(묶어서 늦게 저장). */
  queuePipeOptions: (chainageM: number, patch: Record<string, number | string>) => void;
  round1: (value: number) => number;
  clampMove: (value: number) => number;
}

export interface FordControls {
  control: FordControl;
  /** 확정 payload용 — 측점별 조작값. */
  byChainage: () => Map<number, FordAdjust>;
  /** 노선이 바뀔 때 세션 값을 다시 읽는다. */
  load: () => void;
}

export function createFordControls(deps: FordControlDeps): FordControls {
  const { round1, clampMove, sectionAt, patchCachedDesign } = deps;
  /* ── 세월교 측벽 조작(2026-08-25 사용자) ───────────────────────────────
   * 축은 집수정과 같다(높이·좌우·상하 대각). 값은 세션 사본 + 캐시 design에 함께
   * 실어 3D가 같은 값으로 다시 그리게 한다. 관경·수량은 B05 정본이 원천이라
   * 배수관 구간값과 같은 저장기(`pipe_points` 되쓰기)로 보낸다. */
  const fordAdjustments = new Map<string, FordAdjust>();
  const fordSelections = new Map<string, FordWallRole | null>();
  const fordSessionKey = (): string | null => deps.sessionKey();

  function loadFordAdjustments(): void {
    fordAdjustments.clear();
    const key = fordSessionKey();
    if (!key) return;
    try {
      const parsed = JSON.parse(window.sessionStorage.getItem(key) ?? "{}") as Record<
        string,
        FordAdjust
      >;
      Object.entries(parsed).forEach(([chainage, value]) =>
        fordAdjustments.set(chainage, {
          inlet: { ...DEFAULT_FORD_WALL_ADJUST, ...value.inlet },
          outlet: { ...DEFAULT_FORD_WALL_ADJUST, ...value.outlet },
        }),
      );
    } catch {
      /* 손상된 세션 값은 기본값으로 대체. */
    }
  }

  function persistFordAdjustments(): void {
    const key = fordSessionKey();
    if (key)
      window.sessionStorage.setItem(key, JSON.stringify(Object.fromEntries(fordAdjustments)));
  }

  const fordAdjustAt = (chainageM: number): FordAdjust => {
    const stored = sectionAt(chainageM)?.design?.ford_adjust;
    return (
      fordAdjustments.get(chainageM.toFixed(2)) ?? {
        inlet: { ...DEFAULT_FORD_WALL_ADJUST, ...(stored?.inlet ?? {}) },
        outlet: { ...DEFAULT_FORD_WALL_ADJUST, ...(stored?.outlet ?? {}) },
      }
    );
  };

  const writeFord = (chainageM: number, next: FordAdjust): void => {
    fordAdjustments.set(chainageM.toFixed(2), next);
    persistFordAdjustments();
    patchCachedDesign(chainageM, { ford_adjust: next });
    deps.refreshCard(chainageM);
  };

  const fordControl: FordControl = {
    adjustFor: fordAdjustAt,
    update: (chainageM, role, patch) => {
      const current = fordAdjustAt(chainageM);
      const wall: FordWallAdjust = { ...current[role], ...patch };
      writeFord(chainageM, {
        ...current,
        [role]: {
          // 높이는 0.1m 눈금, 하한(관경+토피)은 기하가 다시 잡는다.
          heightM: wall.heightM === null ? null : Math.max(round1(wall.heightM), 0),
          lateralM: Math.max(0, clampMove(wall.lateralM)),
          slopeM: clampMove(wall.slopeM),
        },
      });
    },
    reset: (chainageM, role) => {
      const current = fordAdjustAt(chainageM);
      writeFord(chainageM, { ...current, [role]: { ...DEFAULT_FORD_WALL_ADJUST } });
    },
    setPipe: (chainageM, patch) => {
      const spec = sectionAt(chainageM)?.ford;
      if (spec) {
        // 캐시를 먼저 고쳐 즉시 반영한다 — 저장은 늦게 묶어서 간다.
        if (patch.pipe_diameter_mm) spec.diameter_m = patch.pipe_diameter_mm / 1000;
        if (patch.pipe_count) spec.pipe_count = patch.pipe_count;
      }
      deps.queuePipeOptions(chainageM, patch);
      deps.refreshCard(chainageM);
    },
    setWing: (chainageM, role, patch) => {
      const spec = sectionAt(chainageM)?.ford;
      const wing = role === "inlet" ? spec?.wing_in : spec?.wing_out;
      if (wing) {
        // 캐시 먼저 — 바닥판 연장(길이 × cos각)도 백엔드 산식 그대로 다시 계산한다.
        if (patch.installed !== undefined) wing.installed = patch.installed;
        if (patch.height_m !== undefined) wing.height_m = patch.height_m;
        if (patch.length_m !== undefined) wing.length_m = patch.length_m;
        if (patch.angle_deg !== undefined) wing.angle_deg = patch.angle_deg;
        wing.slab_extend_m = wing.installed
          ? Math.max((wing.length_m ?? 0) * Math.cos(((wing.angle_deg ?? 45) * Math.PI) / 180), 0)
          : 0;
      }
      const prefix = role === "inlet" ? "wing_in" : "wing_out";
      const options: Record<string, number | string> = {};
      if (patch.installed !== undefined) options[prefix] = patch.installed ? "있음" : "없음";
      if (patch.height_m !== undefined) options[`${prefix}_height_m`] = patch.height_m;
      if (patch.length_m !== undefined) options[`${prefix}_length_m`] = patch.length_m;
      if (patch.angle_deg !== undefined) options[`${prefix}_angle_deg`] = patch.angle_deg;
      deps.queuePipeOptions(chainageM, options);
      deps.refreshCard(chainageM);
    },
    selectedFor: (chainageM) => fordSelections.get(chainageM.toFixed(2)) ?? null,
    select: (chainageM, role) => {
      fordSelections.set(chainageM.toFixed(2), role);
    },
  };

  return {
    control: fordControl,
    byChainage: () => {
      const result = new Map<number, FordAdjust>();
      fordAdjustments.forEach((adjust, key) => {
        const value = Number(key);
        if (Number.isFinite(value)) result.set(value, adjust);
      });
      return result;
    },
    load: loadFordAdjustments,
  };
}

/**
 * BOX암거 구체 조작값 제어 — 세월교와 같은 흐름(세션 사본 + 캐시 `design.box_adjust`).
 * 좌·우 끝을 따로 잡으며 길이는 바깥으로만, 표고는 양방향으로 움직인다.
 */
export function createBoxControls(deps: FordControlDeps): {
  control: BoxControl;
  byChainage: () => Map<number, BoxAdjust>;
  load: () => void;
} {
  const { round1, clampMove, sectionAt, patchCachedDesign } = deps;
  const adjustments = new Map<string, BoxAdjust>();
  const selections = new Map<string, BoxSideRole | null>();

  function load(): void {
    adjustments.clear();
    const key = deps.sessionKey();
    if (!key) return;
    try {
      const parsed = JSON.parse(window.sessionStorage.getItem(key) ?? "{}") as Record<
        string,
        BoxAdjust
      >;
      Object.entries(parsed).forEach(([chainage, value]) =>
        adjustments.set(chainage, {
          left: { ...DEFAULT_BOX_SIDE_ADJUST, ...value.left },
          right: { ...DEFAULT_BOX_SIDE_ADJUST, ...value.right },
        }),
      );
    } catch {
      /* 손상된 세션 값은 기본값으로 대체. */
    }
  }

  function persist(): void {
    const key = deps.sessionKey();
    if (key) window.sessionStorage.setItem(key, JSON.stringify(Object.fromEntries(adjustments)));
  }

  const adjustAt = (chainageM: number): BoxAdjust => {
    const stored = sectionAt(chainageM)?.design?.box_adjust;
    return (
      adjustments.get(chainageM.toFixed(2)) ?? {
        left: { ...DEFAULT_BOX_SIDE_ADJUST, ...(stored?.left ?? {}) },
        right: { ...DEFAULT_BOX_SIDE_ADJUST, ...(stored?.right ?? {}) },
      }
    );
  };

  const write = (chainageM: number, next: BoxAdjust): void => {
    adjustments.set(chainageM.toFixed(2), next);
    persist();
    patchCachedDesign(chainageM, { box_adjust: next });
    deps.refreshCard(chainageM);
  };

  const control: BoxControl = {
    adjustFor: adjustAt,
    update: (chainageM, role, patch) => {
      const current = adjustAt(chainageM);
      const side: BoxSideAdjust = { ...current[role], ...patch };
      write(chainageM, {
        ...current,
        [role]: {
          // 길이는 바깥으로만 — 안쪽으로 줄이면 성토선 물매가 깨진다.
          lengthM: Math.max(0, round1(side.lengthM)),
          riseM: clampMove(side.riseM),
        },
      });
    },
    reset: (chainageM, role) => {
      const current = adjustAt(chainageM);
      write(chainageM, { ...current, [role]: { ...DEFAULT_BOX_SIDE_ADJUST } });
    },
    selectedFor: (chainageM) => selections.get(chainageM.toFixed(2)) ?? null,
    select: (chainageM, role) => {
      selections.set(chainageM.toFixed(2), role);
    },
  };

  return {
    control,
    byChainage: () => {
      const result = new Map<number, BoxAdjust>();
      adjustments.forEach((adjust, key) => {
        const value = Number(key);
        if (Number.isFinite(value)) result.set(value, adjust);
      });
      return result;
    },
    load,
  };
}

/** 세월교·BOX암거 제어를 한 번에 만든다 — 측점 제어기 쪽 배선을 줄인다(700줄 제한). */
export function createBodyControls(
  common: Omit<FordControlDeps, "sessionKey">,
  sessionKey: (kind: "fordadjust" | "boxadjust") => string | null,
): {
  ford: ReturnType<typeof createFordControls>;
  box: ReturnType<typeof createBoxControls>;
} {
  return {
    ford: createFordControls({ ...common, sessionKey: () => sessionKey("fordadjust") }),
    box: createBoxControls({ ...common, sessionKey: () => sessionKey("boxadjust") }),
  };
}