#!/usr/bin/env python3
"""KNIEPUNKT Assistant — weekly editorial workflow for Dr. André Knie."""
from rich.console import Console
from rich.panel import Panel
from rich.prompt import Confirm

from kniepunkt.llm import get_client
from kniepunkt.providers import get_configured
from kniepunkt import episodes as ep_module
from kniepunkt import session as sess_module
from kniepunkt import research, storyline, drafting, quality, publication

console = Console()


def _header():
    console.print(Panel(
        "[bold cyan]KNIEPUNKT Assistant[/bold cyan]\n"
        "[dim]Redaktioneller Workflow · Dr. André Knie[/dim]",
        border_style="cyan",
    ))


def _build_or_load_index(client) -> list[dict]:
    import json
    from pathlib import Path

    cache = Path("episodes_cache.json")
    if cache.exists():
        rebuild = Confirm.ask("\n[dim]Episode-Index vorhanden. Neu aufbauen?[/dim]", default=False)
        if not rebuild:
            with open(cache) as f:
                index = json.load(f)
            console.print(f"[green]Episode-Index: {len(index)} Episoden geladen[/green]")
            return index

    console.print("\n[yellow]Baue Episode-Index auf (einmalig, danach gecacht)...[/yellow]")
    index = ep_module.build_index(client, force=True)
    console.print(f"[green]Episode-Index erstellt: {len(index)} Episoden[/green]")
    return index


def _run(client, providers: list, session: dict, index: list):
    episodes_context = ep_module.format_for_context(index)

    # ── 1. Research ──────────────────────────────────────────────────────────
    if session["step"] == "research":
        author_input = research.get_author_input()
        news_digest = research.research_news(client, author_input, episodes_context)
        console.print(Panel(news_digest, title="Nachrichten-Kandidaten", border_style="green"))

        session["research"] = {"author_input": author_input, "news_digest": news_digest}
        session["step"] = "sources"
        sess_module.save(session)

    # ── 2. Source assessment ─────────────────────────────────────────────────
    if session["step"] == "sources":
        source_assessment = research.assess_sources(client, session["research"]["news_digest"])
        console.print(Panel(source_assessment, title="Quellenbewertung", border_style="yellow"))

        if not Confirm.ask("\nWeiter zur Storyline-Entwicklung?", default=True):
            console.print("[dim]Session gespeichert. Neustart setzt hier fort.[/dim]")
            return

        session["sources"] = source_assessment
        session["step"] = "storyline"
        sess_module.save(session)

    # ── 3. Storyline ─────────────────────────────────────────────────────────
    if session["step"] == "storyline":
        results = storyline.generate_storylines(
            providers,
            session["research"]["news_digest"],
            session["sources"],
            session["research"]["author_input"],
            episodes_context,
        )
        provider_name, choice, selected_text, adjustments = storyline.select_storyline(results)

        session["storyline"] = {
            "results": results,
            "selected_provider": provider_name,
            "choice": choice,
            "selected_text": selected_text,
            "adjustments": adjustments,
        }
        session["step"] = "draft"
        sess_module.save(session)

    # ── 4. Draft ─────────────────────────────────────────────────────────────
    if session["step"] == "draft":
        sl = session["storyline"]
        draft_results = drafting.generate_drafts(
            providers,
            sl["selected_text"],
            sl["choice"],
            sl["adjustments"],
            session["research"]["news_digest"],
            session["sources"],
            session["research"]["author_input"],
        )
        provider_name, draft = drafting.select_draft(draft_results)

        console.print("\n[dim]Überarbeitungshinweise? (Enter = Entwurf übernehmen)[/dim]")
        feedback = input().strip()
        if feedback:
            draft = drafting.enrich_draft(client, draft, feedback)
            console.print(Panel(draft, title="Überarbeiteter Entwurf", border_style="green"))

        session["draft_results"] = draft_results
        session["draft"] = draft
        session["step"] = "quality"
        sess_module.save(session)

    # ── 5. Quality review ────────────────────────────────────────────────────
    if session["step"] == "quality":
        quality_report = quality.review(
            client,
            session["draft"],
            session["sources"],
            episodes_context,
        )
        console.print(Panel(quality_report, title="Qualitätsprüfung", border_style="yellow"))

        console.print("\n[dim]Weitere Überarbeitungen? (Enter = weiter zur Publikation)[/dim]")
        feedback = input().strip()
        if feedback:
            draft = drafting.enrich_draft(client, session["draft"], feedback)
            session["draft"] = draft
            console.print(Panel(draft, title="Finalisierter Entwurf", border_style="green"))

        session["quality"] = quality_report
        session["step"] = "publication"
        sess_module.save(session)

    # ── 6. Publication prep ──────────────────────────────────────────────────
    if session["step"] == "publication":
        teasers = publication.generate_teasers(client, session["draft"])
        console.print(Panel(teasers, title="Teaser-Varianten", border_style="cyan"))

        visual_ideas = publication.generate_visual_ideas(client, session["draft"])
        console.print(Panel(visual_ideas, title="Cover-Ideen", border_style="cyan"))

        out_path = publication.save_package(
            session["date"],
            session["draft"],
            teasers,
            session["sources"],
            visual_ideas,
        )

        console.print(Panel(
            f"[green]Publikationspaket gespeichert:[/green] {out_path}\n\n"
            "Enthält: Artikel · Teaser-Varianten · Cover-Ideen · Quellenbewertung",
            title="✓ Fertig",
            border_style="green",
        ))

        session["publication"] = {"teasers": teasers, "visual_ideas": visual_ideas}
        session["step"] = "done"
        sess_module.save(session)


def main():
    _header()

    try:
        client = get_client()
    except RuntimeError as e:
        console.print(f"[red]{e}[/red]\nBitte ANTHROPIC_API_KEY in der .env-Datei eintragen.")
        return

    providers = get_configured()

    if not providers:
        console.print("[red]Keine LLM-API-Keys konfiguriert. Bitte .env-Datei prüfen.[/red]")
        return

    provider_names = ", ".join(p.name for p in providers)
    console.print(f"[green]Aktive Modelle: {provider_names}[/green]")

    index = _build_or_load_index(client)

    latest = sess_module.load_latest()
    session = None
    if latest and latest.get("step") not in ("done",):
        if Confirm.ask(
            f"\nGefundene Session vom [bold]{latest['date']}[/bold] "
            f"(Schritt: [bold]{latest['step']}[/bold]). Fortfahren?",
            default=True,
        ):
            session = latest

    if session is None:
        session = sess_module.new_session()
        console.print(f"\n[green]Neue Session: {session['date']}[/green]")

    _run(client, providers, session, index)


if __name__ == "__main__":
    main()