"""
Interactive runner for Agent 1 - Change Detection.

Walks you through:
  1. Choosing the item type from a list
  2. For each required angle, uploading the BASELINE (pickup) photo and the
     RETURN photo, one pair at a time, via a native file-picker dialog
  3. Optionally entering the student's complaint text
  4. Running the pipeline and printing a clear summary

Run: python run_interactive.py
"""

import os
import json

from change_detection import run_agent1, ITEM_TYPE_ANGLES


def pick_file(window_title):
    """Open a native file-picker dialog. Falls back to typed path entry if
    tkinter isn't available (e.g. headless environments)."""
    try:
        import tkinter as tk
        from tkinter import filedialog

        root = tk.Tk()
        root.withdraw()
        root.attributes("-topmost", True)
        path = filedialog.askopenfilename(
            title=window_title,
            filetypes=[("Image files", "*.jpg *.jpeg *.png *.bmp *.webp"), ("All files", "*.*")],
        )
        root.destroy()
        if path:
            return path
        print("  No file selected, please try again.")
        return pick_file(window_title)
    except Exception:
        # fallback: manual path entry
        while True:
            path = input(f"{window_title}\n  Enter the full file path: ").strip().strip('"')
            if os.path.isfile(path):
                return path
            print(f"  File not found: {path}")


def choose_item_type():
    """Print a numbered menu of all known item types (from ITEM_TYPE_ANGLES) and return the chosen key."""
    types = list(ITEM_TYPE_ANGLES.keys())
    print("\nSelect item type:")
    for i, t in enumerate(types, 1):
        print(f"  {i}. {t}")
    while True:
        choice = input("Enter number: ").strip()
        if choice.isdigit() and 1 <= int(choice) <= len(types):
            return types[int(choice) - 1]
        print("Invalid choice, try again.")


def main():
    """Full interactive flow: item type -> per-angle photo pairs -> optional complaint -> run_agent1() -> print results."""
    print("=== Agent 1 - Change Detection ===")

    item_id = input("Item ID (e.g. item_laptop_014, press Enter for a default): ").strip() or "item_test_001"
    item_type = choose_item_type()
    angles = ITEM_TYPE_ANGLES[item_type]

    print(f"\nItem type '{item_type}' requires {len(angles)} angle(s): {', '.join(angles)}")
    print("For each angle you'll upload the BASELINE (pickup) photo, then the RETURN photo.\n")

    baseline_photos = []
    return_photos = []

    for angle in angles:
        print(f"--- Angle: {angle} ---")

        print(f"[{angle}] Select the BASELINE (pickup) photo...")
        base_path = pick_file(f"Baseline photo - angle: {angle}")
        print(f"  Baseline: {base_path}")

        print(f"[{angle}] Select the RETURN photo...")
        return_path = pick_file(f"Return photo - angle: {angle}")
        print(f"  Return:   {return_path}\n")

        baseline_photos.append({"angle": angle, "path": base_path})
        return_photos.append({"angle": angle, "path": return_path})

    complaint_text = input("Optional: student complaint text (press Enter to skip): ").strip() or None

    print("\nRunning change detection...\n")
    result = run_agent1(
        item_id=item_id,
        item_type=item_type,
        baseline_photos=baseline_photos,
        return_photos=return_photos,
        complaint_text=complaint_text,
        crop_output_dir="agent1_crops",
    )

    print("=" * 50)
    print("RESULT")
    print("=" * 50)
    print(f"Overall change detected : {result['overall_change_detected']}")
    print(f"Overall change score    : {result['overall_change_score']}")
    print(f"Routing hint            : {result['routing_hint']}")
    print()
    for a in result["angles"]:
        print(f"- {a['angle']}: score={a['change_score']}, aligned_ok={a['aligned_ok']}, regions={len(a['regions'])}")
        for r in a["regions"]:
            print(f"    region: bbox={r['bbox']} area={r['area']} crop={r['crop_path']}")

    print("\nFull JSON output:")
    print(json.dumps(result, indent=2))


if __name__ == "__main__":
    main()