import { ArrowLeft, Map as MapIcon } from "lucide-react";
import { AnimatePresence, motion, useReducedMotion } from "motion/react";
import type { ReactNode } from "react";
import { cn } from "@/shared/ui/cn";
import { OPERATIONAL_TIMELINE_LAYOUT } from "../operational-timeline/operational-timeline-model";
import { AnalysisArtifactWorkspace } from "./analysis-document-view";
import { ArtifactPeekBar } from "./artifact-peek-bar";
import {
  ARTIFACT_VIEW_CONTROL_BUTTON_CLASS_NAME,
  ARTIFACT_VIEW_CONTROL_SHELL_CLASS_NAME
} from "./artifact-view-control-styles";
import type {
  AnalysisArtifact,
  ArtifactRequestedView,
  WorkbenchSurfaceMode
} from "./workspace-model";

type WorkbenchMainFrameProps = {
  mapContent: ReactNode;
  mapOverlay?: ReactNode;
  timelineContent: ReactNode;
  timelineMode: "compact" | "expanded" | "summary";
  timelineBottom: number;
  activeArtifact: AnalysisArtifact | null;
  pendingArtifact: AnalysisArtifact | null;
  surfaceMode: WorkbenchSurfaceMode;
  mapSplitAvailable: boolean;
  onOpenPendingArtifact: () => void;
  onDestroyPendingArtifact: () => void;
  onSetArtifactView: (view: ArtifactRequestedView) => void;
  onCollapseArtifact: () => void;
  onDestroyArtifact: () => void;
};

export function WorkbenchMainFrame({
  mapContent,
  mapOverlay,
  timelineContent,
  timelineMode,
  timelineBottom,
  activeArtifact,
  pendingArtifact,
  surfaceMode,
  mapSplitAvailable,
  onOpenPendingArtifact,
  onDestroyPendingArtifact,
  onSetArtifactView,
  onCollapseArtifact,
  onDestroyArtifact
}: WorkbenchMainFrameProps) {
  const prefersReducedMotion = useReducedMotion();
  const showMap = surfaceMode !== "focus";
  const showArtifact = activeArtifact && surfaceMode !== "map_only";
  const showArtifactViewControl = Boolean(
    activeArtifact &&
    activeArtifact.mapRelation !== "none" &&
    (surfaceMode === "focus" || surfaceMode === "map_only")
  );
  const mapOnly = surfaceMode === "map_only";
  const timelineTransition = prefersReducedMotion
    ? { duration: 0 }
    : { duration: 0.28, ease: [0.22, 1, 0.36, 1] as const };
  const viewControlTransition = prefersReducedMotion
    ? { duration: 0 }
    : { duration: 0.18, ease: [0.22, 1, 0.36, 1] as const };

  return (
    <div
      className="workbench-main-frame pointer-events-none absolute inset-x-0 bottom-0 top-14 min-h-0 lg:left-[var(--workbench-agent-current-width)]"
      data-testid="workbench-main-frame"
      data-timeline-mode={timelineMode}
    >
      <div
        id="main-workspace"
        data-layout-mode={surfaceMode}
        className={cn(
          "pointer-events-auto absolute inset-0 grid min-h-0 overflow-hidden bg-[#dbe3eb]",
          surfaceMode === "map_split" && "grid-cols-2 gap-px bg-slate-300",
          surfaceMode !== "map_split" && "grid-cols-1"
        )}
      >
        <section
          id="workspace-map"
          aria-label="供水管网地图工作区"
          aria-hidden={!showMap}
          className={cn(
            "relative min-h-0 min-w-0 overflow-hidden bg-[var(--canvas-map)]",
            !showMap && "hidden"
          )}
        >
          {mapContent}
          {mapOverlay}
        </section>

        {activeArtifact ? (
          <section
            id="artifact-workspace"
            aria-label={`${activeArtifact.title}工作区`}
            aria-hidden={!showArtifact}
            className={cn(
              "relative z-30 min-h-0 min-w-0 overflow-hidden",
              !showArtifact && "hidden"
            )}
          >
            <AnalysisArtifactWorkspace
              artifact={activeArtifact}
              surfaceMode={surfaceMode}
              onSetView={onSetArtifactView}
              onCollapse={onCollapseArtifact}
              onDestroy={onDestroyArtifact}
            />
          </section>
        ) : null}

        {pendingArtifact ? (
          <ArtifactPeekBar
            artifact={pendingArtifact}
            surfaceMode={surfaceMode}
            onOpen={onOpenPendingArtifact}
            onDestroy={onDestroyPendingArtifact}
          />
        ) : null}

        <AnimatePresence initial={false}>
          {showArtifactViewControl ? (
            <motion.div
              className={cn(
                "pointer-events-auto absolute left-6 top-4 z-40 lg:left-[max(1.5rem,calc(6rem-var(--workbench-agent-current-width)))]",
                ARTIFACT_VIEW_CONTROL_SHELL_CLASS_NAME
              )}
              initial={prefersReducedMotion ? false : { opacity: 0, y: 6, scale: 0.98 }}
              animate={{ opacity: 1, y: 0, scale: 1 }}
              exit={prefersReducedMotion ? { opacity: 0 } : { opacity: 0, y: 5, scale: 0.98 }}
              transition={viewControlTransition}
            >
              <button
                type="button"
                aria-label={mapOnly ? "返回分析成果" : "显示地图"}
                onClick={() => onSetArtifactView(mapOnly ? "focus" : mapSplitAvailable ? "map_split" : "map_only")}
                className={ARTIFACT_VIEW_CONTROL_BUTTON_CLASS_NAME}
              >
                <AnimatePresence initial={false} mode="wait">
                  <motion.span
                    key={mapOnly ? "return-analysis" : "show-map"}
                    className="inline-flex items-center gap-1.5"
                    initial={prefersReducedMotion ? false : { opacity: 0, x: mapOnly ? 5 : -5 }}
                    animate={{ opacity: 1, x: 0 }}
                    exit={prefersReducedMotion ? { opacity: 0 } : { opacity: 0, x: mapOnly ? -5 : 5 }}
                    transition={viewControlTransition}
                  >
                    {mapOnly ? <ArrowLeft size={13} aria-hidden="true" /> : <MapIcon size={13} aria-hidden="true" />}
                    {mapOnly ? "返回分析成果" : "显示地图"}
                  </motion.span>
                </AnimatePresence>
              </button>
            </motion.div>
          ) : null}
        </AnimatePresence>
      </div>

      <motion.div
        className="pointer-events-auto absolute left-3 z-20 mx-auto min-h-0"
        initial={false}
        animate={{
          bottom: timelineBottom,
          maxWidth: OPERATIONAL_TIMELINE_LAYOUT[timelineMode].maxWidth,
          right: 12
        }}
        transition={timelineTransition}
      >
        <AnimatePresence initial={false}>
          {timelineContent ? (
            <motion.div
              key="operational-timeline"
              initial={prefersReducedMotion ? false : { opacity: 0, y: 14, scale: 0.985 }}
              animate={{ opacity: 1, y: 0, scale: 1 }}
              exit={prefersReducedMotion ? { opacity: 0 } : { opacity: 0, y: 12, scale: 0.985 }}
              transition={timelineTransition}
            >
              {timelineContent}
            </motion.div>
          ) : null}
        </AnimatePresence>
      </motion.div>
    </div>
  );
}