//! CLI argument definitions for Aphoria

use std::path::PathBuf;

use clap::{Parser, Subcommand};

/// A code-level truth linter powered by Episteme.
///
/// Aphoria scans a codebase, extracts the decisions embedded in config and code,
/// and checks them against authoritative sources. It finds the places where what
/// your code *does* contradicts what the specs *say*.
#[derive(Parser)]
#[command(name = "aphoria")]
#[command(version, about, long_about = None)]
pub struct Cli {
    /// Path to aphoria.toml configuration file
    #[arg(short, long, global = true)]
    pub config: Option<PathBuf>,

    #[command(subcommand)]
    pub command: Commands,
}

#[derive(Subcommand)]
pub enum Commands {
    /// Scan a project for epistemic drift
    Scan {
        /// Path to the project root to scan
        #[arg(default_value = ".")]
        path: PathBuf,

        /// Output format: table, json, sarif, markdown
        #[arg(short, long, default_value = "table")]
        format: String,

        /// Exit with non-zero code if conflicts found
        #[arg(long)]
        exit_code: bool,

        /// Use stricter thresholds (FLAG at 0.3, BLOCK at 0.5)
        #[arg(long)]
        strict: bool,

        /// Persist claims to Episteme storage (enables diff/baseline features).
        /// Without this flag, scans are ephemeral and fast.
        #[arg(long)]
        persist: bool,

        /// Enable debug output showing conflict resolution traces.
        /// Shows why each conflict was raised, including authority matching.
        #[arg(long)]
        debug: bool,
    },

    /// Acknowledge a conflict (mark as intentional)
    Ack {
        /// The concept path to acknowledge
        concept_path: String,

        /// Reason for acknowledgment
        #[arg(short, long)]
        reason: String,
    },

    /// Set the current scan as the baseline
    Baseline,

    /// Show changes since last baseline
    Diff,

    /// Show current scan status
    Status,

    /// Initialize Aphoria with authoritative corpus
    Init,

    /// Manage the authoritative corpus
    Corpus {
        #[command(subcommand)]
        command: CorpusCommands,
    },

    /// Manage the research agent for filling corpus gaps
    Research {
        #[command(subcommand)]
        command: ResearchCommands,
    },

    /// Manage federated policies (Trust Packs)
    Policy {
        #[command(subcommand)]
        command: PolicyCommands,
    },
}

#[derive(Subcommand)]
pub enum CorpusCommands {
    /// Build the authoritative corpus from configured sources
    Build {
        /// Only include specific sources (comma-separated: rfc,owasp,vendor,hardcoded)
        #[arg(long)]
        only: Option<String>,

        /// Run in offline mode (skip sources requiring network)
        #[arg(long)]
        offline: bool,

        /// Clear cache before building
        #[arg(long)]
        clear_cache: bool,
    },

    /// List available corpus sources
    List,
}

#[derive(Subcommand)]
pub enum ResearchCommands {
    /// Run the research agent to fill corpus gaps
    Run {
        /// Minimum projects that must report a gap before researching (default: 3)
        #[arg(short, long, default_value = "3")]
        threshold: u32,

        /// Use strict quality validation
        #[arg(long)]
        strict: bool,

        /// Prune old gaps before researching
        #[arg(long)]
        prune: bool,

        /// Maximum age of gaps to consider in days (default: 90)
        #[arg(long, default_value = "90")]
        max_age: u64,
    },

    /// Show research agent status and gap statistics
    Status,

    /// List gaps eligible for research
    Gaps {
        /// Minimum projects that must report a gap (default: 1)
        #[arg(short, long, default_value = "1")]
        threshold: u32,

        /// Show only gaps ready for research (seen in 3+ projects)
        #[arg(long)]
        ready: bool,
    },
}

#[derive(Subcommand)]
pub enum PolicyCommands {
    /// Export acknowledged conflicts and manual aliases as a Trust Pack
    Export {
        /// Name of the policy pack
        #[arg(long)]
        name: String,

        /// Output path for the pack file
        #[arg(short, long)]
        output: PathBuf,
    },
    /// Import a Trust Pack into the local Episteme
    Import {
        /// Path to the .pack file
        file: PathBuf,
    },
}