#!/usr/bin/env bash
# Aider Provider Configuration (18+ Providers, Tier 3)
# Shell-sourceable config for loki-mode multi-provider support

# Provider Functions (for external use)
# =====================================
# These functions provide a clean interface for external scripts:
#   provider_detect()           - Check if CLI is installed
#   provider_version()          - Get CLI version
#   provider_invoke()           - Invoke with prompt (autonomous mode)
#   provider_invoke_with_tier() - Invoke with tier-specific model selection
#   provider_get_tier_param()   - Map tier name to model name
#
# Usage:
#   source providers/aider.sh
#   if provider_detect; then
#       provider_invoke "Your prompt here"
#   fi
#
# Note: autonomy/run.sh uses inline invocation for streaming support
# and real-time agent tracking. These functions are intended for
# simpler scripts, wrappers, and external integrations.
# =====================================

# Provider Identity
PROVIDER_NAME="aider"
PROVIDER_DISPLAY_NAME="Aider (18+ Providers)"
PROVIDER_CLI="aider"

# CLI Invocation
# Aider uses --message for single-instruction mode, --yes-always for auto-approve
# Prompt is passed via --message flag, not positional
PROVIDER_AUTONOMOUS_FLAG="--yes-always"
PROVIDER_PROMPT_FLAG="--message"
PROVIDER_PROMPT_POSITIONAL=false

# Skill System
# Aider does not have a native skills directory
PROVIDER_SKILL_DIR=""
PROVIDER_SKILL_FORMAT="none"

# Capability Flags
PROVIDER_HAS_SUBAGENTS=false
PROVIDER_HAS_PARALLEL=false
PROVIDER_HAS_TASK_TOOL=false
PROVIDER_HAS_MCP=false
PROVIDER_MAX_PARALLEL=1

# Model Configuration
# Aider supports 18+ providers; model configured via LOKI_AIDER_MODEL env var
# or provider-specific env vars (OPENAI_API_KEY, OPENAI_API_BASE, etc.)
# NOTE: Aider uses litellm for model routing, so full model strings are needed (not CLI aliases)
# Aider default model -- reads from providers/model_catalog.json via models.sh when
# available so new model releases only require updating that single catalog file.
_aider_default_from_catalog() {
    local script_dir
    script_dir="$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")" && pwd)"
    if [ -f "${script_dir}/models.sh" ]; then
        # shellcheck source=./models.sh
        source "${script_dir}/models.sh"
        loki_latest_model aider development 2>/dev/null || echo "openrouter/deepseek/deepseek-v3.2"
    else
        echo "openrouter/deepseek/deepseek-v3.2"
    fi
}
# Resolution: provider-scoped env > catalog. The GLOBAL tier var
# (LOKI_MODEL_DEVELOPMENT) is deliberately NOT in this chain: aider takes
# litellm full model strings ("openrouter/deepseek/deepseek-v3.2"), while the
# global tier var carries Claude CLI aliases ("sonnet"), so a global set for
# one provider silently produced `aider --model sonnet`. Namespace-incompatible,
# not merely mis-ordered. Do not re-add it.
AIDER_DEFAULT_MODEL="${LOKI_AIDER_MODEL:-$(_aider_default_from_catalog)}"
PROVIDER_MODEL_PLANNING="$AIDER_DEFAULT_MODEL"
PROVIDER_MODEL_DEVELOPMENT="$AIDER_DEFAULT_MODEL"
PROVIDER_MODEL_FAST="$AIDER_DEFAULT_MODEL"

# No Task tool - model is configured externally
PROVIDER_TASK_MODEL_PARAM=""
PROVIDER_TASK_MODEL_VALUES=()

# Context and Limits (varies by underlying model, conservative defaults)
PROVIDER_CONTEXT_WINDOW=200000
PROVIDER_MAX_OUTPUT_TOKENS=128000
PROVIDER_RATE_LIMIT_RPM=60

# Cost (varies by underlying provider, not tracked by loki)
PROVIDER_COST_INPUT_PLANNING=0.003
PROVIDER_COST_OUTPUT_PLANNING=0.015
PROVIDER_COST_INPUT_DEV=0.003
PROVIDER_COST_OUTPUT_DEV=0.015
PROVIDER_COST_INPUT_FAST=0.003
PROVIDER_COST_OUTPUT_FAST=0.015

# Degraded Mode
PROVIDER_DEGRADED=true
PROVIDER_DEGRADED_REASONS=(
    "No subagent support"
    "Sequential execution only - no parallel agents (PROVIDER_MAX_PARALLEL=1)"
    "No Task tool or MCP"
)

# Detection function - check if provider CLI is available
provider_detect() {
    command -v aider >/dev/null 2>&1
}

# Version check function
provider_version() {
    aider --version 2>/dev/null | head -1
}

# Invocation function
# --message: single instruction mode (process and exit)
# --yes-always: auto-approve all prompts
# --no-auto-commits: loki manages git
provider_invoke() {
    local prompt="$1"
    shift
    local model="$AIDER_DEFAULT_MODEL"
    local extra_flags="${LOKI_AIDER_FLAGS:-}"
    # shellcheck disable=SC2086
    aider --message "$prompt" \
          --yes-always \
          --no-auto-commits \
          --model "$model" \
          $extra_flags "$@" 2>&1
}

# Model tier to parameter (Aider uses single model, returns model name)
provider_get_tier_param() {
    local tier="$1"
    echo "$AIDER_DEFAULT_MODEL"
}

# Dynamic model resolution (v6.0.0)
# Aider uses a single externally-configured model, so tier resolution
# just returns the configured model name. maxTier has no effect.
resolve_model_for_tier() {
    local tier="$1"
    echo "$AIDER_DEFAULT_MODEL"
}

# provider_invoke_argv <tier> <prompt> -- see providers/claude.sh for the full
# rationale. Populates _LOKI_INVOKE_ARGV so a caller can wrap it in `timeout`,
# which cannot exec a shell function.
#
# Unlike Codex, provider_get_tier_param here returns a real MODEL NAME, so it is
# safe to pass to --model. An empty value omits the flag rather than sending
# `--model ""`, which aider rejects.
provider_invoke_argv() {
    local tier="${1:-development}"
    local prompt="${2:-}"
    local model
    model="$(provider_get_tier_param "$tier" 2>/dev/null || printf '%s' "")"
    _LOKI_INVOKE_ARGV=(aider --yes-always --no-auto-commits)
    [ -n "$model" ] && _LOKI_INVOKE_ARGV+=(--model "$model")
    # LOKI_AIDER_FLAGS is a documented operator knob (CLI --aider-flags) that
    # provider_invoke honours. Dropping it here would make the timeout-safe path
    # silently ignore operator config that the normal path applies. Deliberately
    # word-split, matching provider_invoke's unquoted $extra_flags expansion.
    if [ -n "${LOKI_AIDER_FLAGS:-}" ]; then
        # shellcheck disable=SC2206
        _LOKI_INVOKE_ARGV+=(${LOKI_AIDER_FLAGS})
    fi
    # Aider takes the prompt via --message, not positionally.
    _LOKI_INVOKE_ARGV+=(--message "$prompt")
}

# Tier-aware invocation
# Aider uses a single model configured externally, tier has no effect
provider_invoke_with_tier() {
    local tier="$1"
    local prompt="$2"
    shift 2
    provider_invoke "$prompt" "$@"
}