#!/usr/bin/env bash
# shellcheck disable=SC2034  # variables consumed by lib/common.sh
# sfclaude — launch Claude Code on SiliconFlow's Anthropic-compatible API.
#
# SiliconFlow (硅基流动) is a multi-model platform giving access to DeepSeek,
# Kimi, GLM, MiniMax, Qwen, Yi, and more through one API key.
#
# Endpoint: https://api.siliconflow.cn/  (Anthropic-compatible)
# Model catalog: https://cloud.siliconflow.cn/models
#
# Note: SiliconFlow model names use the "provider/Model-Name" convention
# (e.g. deepseek-ai/DeepSeek-V4-PRO, moonshotai/Kimi-K2-Instruct-0905).
#
# Reads SF_API_KEY from the environment first, then falls back to
# ~/.zshrc / ~/.bashrc / ~/.bash_profile / ~/.profile if not already exported.
#
# Quick start (no install needed):
#   chmod +x sfclaude
#   ./sfclaude
#
# Use:
#   sfclaude                  # deepseek-ai/DeepSeek-V4-PRO (default)
#   sfclaude fast             # deepseek-ai/DeepSeek-V3 (cheaper)
#   sfclaude kimi             # moonshotai/Kimi-K2-Instruct-0905
#   sfclaude glm              # Pro/zai-org/GLM-5
#   sfclaude minimax          # Pro/MiniMaxAI/MiniMax-M2.5
#   sfclaude qwen             # Qwen/Qwen2.5-Coder
#   sfclaude yi               # 01-ai/Yi-1.5
#   sfclaude r1               # deepseek-ai/DeepSeek-R1 (deep reasoning)
#   sfclaude long             # request max context window
#   sfclaude effort max       # set reasoning effort (low|medium|high|xhigh|max)
#   sfclaude update           # git pull latest from this repo
#   sfclaude --help           # any remaining flag is forwarded to claude
#
# Optional env overrides:
#   SF_MODEL=deepseek-ai/DeepSeek-V4-PRO       # main model (any SF model)
#   SF_FLASH_MODEL=deepseek-ai/DeepSeek-V3     # flash / haiku / subagent tier
#   SF_BASE_URL=https://api.siliconflow.cn/    # custom Anthropic-compatible URL
#   SF_CTX=1048576                             # max context tokens
#   SF_OUTPUT=8000                             # cap output tokens
#   SF_EFFORT=max                              # CLAUDE_CODE_EFFORT_LEVEL
#
# Get your API key: https://cloud.siliconflow.cn/account/ak

set -euo pipefail

# Resolve symlink to find the real script directory.
_SELF="$0"
if [ -L "$_SELF" ]; then
  _LINK="$(readlink "$_SELF")"
  case "$_LINK" in
    /*) _SELF="$_LINK" ;;
    *)  _SELF="$(cd "$(dirname "$_SELF")" && pwd)/$_LINK" ;;
  esac
fi
SELF_DIR="$(cd "$(dirname "$_SELF")" && pwd)"
if [ -f "$SELF_DIR/lib/common.sh" ]; then source "$SELF_DIR/lib/common.sh"
elif [ -f "$SELF_DIR/../lib/common.sh" ]; then source "$SELF_DIR/../lib/common.sh"
else echo "sfclaude: cannot find lib/common.sh. Reinstall or cd to repo." >&2; exit 1; fi

check_version "sfclaude" "$@"

PRO_MODEL="${SF_MODEL:-deepseek-ai/DeepSeek-V4-PRO}"
FLASH_MODEL="${SF_FLASH_MODEL:-deepseek-ai/DeepSeek-V3}"

if [ $# -gt 0 ] && [ "$1" = "update" ]; then
  do_update "sfclaude" "SFCLAUDE_HOME"
fi

API_KEY="$(resolve_api_key "SF_API_KEY")"
if [ -z "$API_KEY" ]; then
  echo "❌ SF_API_KEY not found." >&2
  echo "   Add to ~/.zshrc or ~/.bashrc:  export SF_API_KEY=sk-xxxxxxxxxxxxxxxxxx" >&2
  echo "   Get your key at: https://cloud.siliconflow.cn/account/ak" >&2
  exit 1
fi

BASE_URL="${SF_BASE_URL:-https://api.siliconflow.cn/}"

LONG_CTX=0
EFFORT="${SF_EFFORT:-}"

MAIN_MODEL=""
while [ $# -gt 0 ]; do
  case "$1" in
    max|pro)         MAIN_MODEL="$PRO_MODEL"; shift ;;
    fast|flash|lite) MAIN_MODEL="$FLASH_MODEL"; shift ;;
    kimi)            MAIN_MODEL="moonshotai/Kimi-K2-Instruct-0905"; shift ;;
    glm)             MAIN_MODEL="Pro/zai-org/GLM-5"; shift ;;
    minimax)         MAIN_MODEL="Pro/MiniMaxAI/MiniMax-M2.5"; shift ;;
    qwen)            MAIN_MODEL="Qwen/Qwen2.5-Coder"; shift ;;
    yi)              MAIN_MODEL="01-ai/Yi-1.5"; shift ;;
    r1)              MAIN_MODEL="deepseek-ai/DeepSeek-R1"; shift ;;
    long)            LONG_CTX=1; shift ;;
    effort)
      case "${2:-}" in
        low|medium|high|xhigh|max) EFFORT="$2"; shift 2 ;;
        *) echo "sfclaude: invalid effort level '${2:-}'. Use: low medium high xhigh max" >&2; exit 1 ;;
      esac ;;
    --) shift; break ;;
    *)  break ;;
  esac
done

if [ -z "$MAIN_MODEL" ]; then MAIN_MODEL="$PRO_MODEL"; fi

case "$MAIN_MODEL" in
  "$PRO_MODEL")       OTHER_MODEL="$FLASH_MODEL"; OTHER_DESC="DeepSeek V3 — fast / cheap tier" ;;
  "$FLASH_MODEL")     OTHER_MODEL="$PRO_MODEL";   OTHER_DESC="DeepSeek V4 PRO — full reasoning" ;;
  "deepseek-ai/DeepSeek-R1") OTHER_MODEL="$PRO_MODEL"; OTHER_DESC="DeepSeek V4 PRO" ;;
  *)                  OTHER_MODEL="$PRO_MODEL";   OTHER_DESC="DeepSeek V4 PRO — full reasoning" ;;
esac

export_anthropic_base
export CLAUDE_CODE_SUBAGENT_MODEL="$FLASH_MODEL"
set_custom_model "$OTHER_MODEL" "$MAIN_MODEL" "$OTHER_DESC"

CTX="${SF_CTX:-}"
OUTPUT_CAP="${SF_OUTPUT:-}"
apply_context_and_effort

show_banner_and_launch "SiliconFlow" "$@"