"""
test_selector.py
----------------
Demonstrates the content-aware infographic selector:
  1. Derive requirements from content (item count, longest label, longest description).
  2. Query bank catalogue — selector picks the slide whose boxes fit the text.
  3. Clone that slide and fill it with the real content.

  py test_selector.py
"""

import json
import sys
from pathlib import Path

ROOT   = Path(__file__).parent.parent
BANK   = ROOT / "infographic_bank"
TMPL   = ROOT / "Template new.pptx"
OUT    = Path(__file__).parent / "output" / "selector_test.pptx"
CAT    = BANK / "bank_catalogue_slim.json"

sys.path.insert(0, str(Path(__file__).parent))
from engine.slide_cloner    import SlideCloner
from engine.text_replacer   import replace_slide_text
from engine.slide_selector  import select_slide, content_requirements

with open(CAT, encoding="utf-8") as f:
    catalogue = json.load(f)

cloner = SlideCloner(str(OUT), template_path=str(TMPL))

# ── Slide 1: 5-step process ──────────────────────────────────────────────────
content1 = {
    "title": "Five Steps to a Powerful Opening",
    "steps": [
        {"label": "Hook",      "description": "Open with a bold statement or question that grabs attention."},
        {"label": "Context",   "description": "Give the audience a clear reason to listen to what comes next."},
        {"label": "Objective", "description": "State plainly what the audience will learn or take away."},
        {"label": "Structure", "description": "Preview the flow of your talk so the audience can follow along."},
        {"label": "Engage",    "description": "Invite early participation to build rapport and energy."},
    ],
}
reqs1 = content_requirements(content1)
reqs1["visual_type"] = "process"
entry1 = select_slide(catalogue, reqs1)
print(f"Slide 1 -> {entry1['file']} [{entry1['slide_index']}]  "
      f"(label_cap={entry1.get('max_label_chars')}, desc_cap={entry1.get('max_desc_chars')})")
slide1 = cloner.clone_slide(str(BANK / entry1["file"]), entry1["slide_index"])
replace_slide_text(slide1, content1)

# ── Slide 2: 6-item timeline ─────────────────────────────────────────────────
content2 = {
    "title": "Course Progression",
    "steps": [
        {"label": "Introduction", "description": "Understanding the basics of public speaking"},
        {"label": "Fear",         "description": "Facing and overcoming the fear"},
        {"label": "Message",      "description": "Getting your point across clearly"},
        {"label": "Message",      "description": "Getting your point across clearly"},
        {"label": "Delivery",     "description": "Body language and vocal techniques"},
        {"label": "Engagement",   "description": "Connecting with your audience"},
        {"label": "Mastery",      "description": "Putting it all into practice"},
    ],
}
reqs2 = content_requirements(content2)
reqs2["visual_type"] = "timeline"
entry2 = select_slide(catalogue, reqs2)
print(f"Slide 2 -> {entry2['file']} [{entry2['slide_index']}]  "
      f"(label_cap={entry2.get('max_label_chars')}, desc_cap={entry2.get('max_desc_chars')})")
slide2 = cloner.clone_slide(str(BANK / entry2["file"]), entry2["slide_index"])
replace_slide_text(slide2, content2)

# ── Slide 3: 8-item hub ──────────────────────────────────────────────────────
content3 = {
    "title": "Gaining Confidence in What You Say",
    "steps": [
        {"label": "Know",      "description": "Master your content before stepping on stage."},
        {"label": "Tailor",    "description": "Adapt language and examples to your audience."},
        {"label": "Stories",   "description": "Anchor key points in real-world stories."},
        {"label": "Authentic", "description": "Speak from genuine experience and belief."},
        {"label": "Prepare",   "description": "Rehearse until the words flow naturally."},
        {"label": "Nerves",    "description": "Use breathing and pacing to stay calm."},
        {"label": "Questions", "description": "Welcome interaction to build confidence."},
        {"label": "Reflect",   "description": "Review each performance and adjust."},
    ],
}
reqs3 = content_requirements(content3)
reqs3["visual_type"] = "hub"
entry3 = select_slide(catalogue, reqs3)
print(f"Slide 3 -> {entry3['file']} [{entry3['slide_index']}]  "
      f"(label_cap={entry3.get('max_label_chars')}, desc_cap={entry3.get('max_desc_chars')})")
slide3 = cloner.clone_slide(str(BANK / entry3["file"]), entry3["slide_index"])
replace_slide_text(slide3, content3)

cloner.save()
print(f"\nOpen output/selector_test.pptx to verify.")