//go:build llm_script && !scripts_pkg

package main

import (
	"database/sql"
	"encoding/json"
	"log"
	"os"

	_ "github.com/lib/pq"
)

type bytedanceSeedRow struct {
	Model         string  `json:"model"`
	InputPrice    float64 `json:"inputPrice"`
	OutputPrice   float64 `json:"outputPrice"`
	ContextLength int     `json:"contextLength"`
	Operator      string  `json:"operator"`
	Region        string  `json:"region"`
	Currency      string  `json:"currency"`
}

type baiduSeedRow struct {
	Model       string   `json:"model"`
	Type        string   `json:"type"`
	InputPrice  *float64 `json:"inputPrice"`
	OutputPrice *float64 `json:"outputPrice"`
	Operator    string   `json:"operator"`
	Region      string   `json:"region"`
	Currency    string   `json:"currency"`
}

func main() {
	dsn := os.Getenv("DATABASE_URL")
	if dsn == "" {
		dsn = "postgres://long@/llm_intelligence?host=/var/run/postgresql"
	}

	db, err := sql.Open("postgres", dsn)
	if err != nil {
		log.Fatal(err)
	}
	defer db.Close()

	bytedanceRows, err := loadBytedanceSeedRows(db)
	if err != nil {
		log.Fatal(err)
	}
	baiduRows, err := loadBaiduSeedRows(db)
	if err != nil {
		log.Fatal(err)
	}

	if err := writeJSON("/tmp/bytedance_raw.json", map[string]any{"bytedance": bytedanceRows}); err != nil {
		log.Fatal(err)
	}
	if err := writeJSON("/tmp/phase2_raw_data.json", map[string]any{"baidu": baiduRows, "zhipu": []any{}}); err != nil {
		log.Fatal(err)
	}

	log.Printf("Exported %d ByteDance rows to /tmp/bytedance_raw.json", len(bytedanceRows))
	log.Printf("Exported %d Baidu rows to /tmp/phase2_raw_data.json", len(baiduRows))
}

func loadBytedanceSeedRows(db *sql.DB) ([]bytedanceSeedRow, error) {
	rows, err := db.Query(`
		WITH latest AS (
			SELECT DISTINCT ON (rp.model_id, rp.operator_id, rp.region, rp.currency)
			       rp.model_id,
			       rp.operator_id,
			       rp.region,
			       rp.currency,
			       rp.input_price_per_mtok,
			       rp.output_price_per_mtok,
			       rp.effective_date
			  FROM region_pricing rp
			  JOIN models m ON m.id = rp.model_id
			  JOIN operator o ON o.id = rp.operator_id
			 WHERE m.external_id LIKE 'bytedance-%'
			   AND o.name = 'ByteDance Volcano'
			 ORDER BY rp.model_id, rp.operator_id, rp.region, rp.currency, rp.effective_date DESC, rp.updated_at DESC, rp.id DESC
		)
		SELECT REPLACE(m.external_id, 'bytedance-', ''),
		       COALESCE(latest.input_price_per_mtok, 0),
		       COALESCE(latest.output_price_per_mtok, 0),
		       COALESCE(m.context_length, 0),
		       o.name,
		       latest.region,
		       latest.currency
		  FROM latest
		  JOIN models m ON m.id = latest.model_id
		  JOIN operator o ON o.id = latest.operator_id
		 ORDER BY m.external_id
	`)
	if err != nil {
		return nil, err
	}
	defer rows.Close()

	var result []bytedanceSeedRow
	for rows.Next() {
		var row bytedanceSeedRow
		if err := rows.Scan(
			&row.Model,
			&row.InputPrice,
			&row.OutputPrice,
			&row.ContextLength,
			&row.Operator,
			&row.Region,
			&row.Currency,
		); err != nil {
			return nil, err
		}
		result = append(result, row)
	}
	return result, rows.Err()
}

func loadBaiduSeedRows(db *sql.DB) ([]baiduSeedRow, error) {
	rows, err := db.Query(`
		WITH latest AS (
			SELECT DISTINCT ON (rp.model_id, rp.operator_id, rp.region, rp.currency)
			       rp.model_id,
			       rp.operator_id,
			       rp.region,
			       rp.currency,
			       rp.input_price_per_mtok,
			       rp.output_price_per_mtok,
			       rp.effective_date
			  FROM region_pricing rp
			  JOIN models m ON m.id = rp.model_id
			  JOIN operator o ON o.id = rp.operator_id
			 WHERE m.external_id LIKE 'baidu-%'
			   AND o.name = 'Baidu Qianfan'
			 ORDER BY rp.model_id, rp.operator_id, rp.region, rp.currency, rp.effective_date DESC, rp.updated_at DESC, rp.id DESC
		)
		SELECT m.name,
		       COALESCE(latest.input_price_per_mtok, 0),
		       COALESCE(latest.output_price_per_mtok, 0),
		       o.name,
		       latest.region,
		       latest.currency
		  FROM latest
		  JOIN models m ON m.id = latest.model_id
		  JOIN operator o ON o.id = latest.operator_id
		 ORDER BY m.external_id
	`)
	if err != nil {
		return nil, err
	}
	defer rows.Close()

	var result []baiduSeedRow
	for rows.Next() {
		var (
			model       string
			inputPrice  float64
			outputPrice float64
			operator    string
			region      string
			currency    string
		)
		if err := rows.Scan(&model, &inputPrice, &outputPrice, &operator, &region, &currency); err != nil {
			return nil, err
		}
		inputPerToken := inputPrice / 1000000
		outputPerToken := outputPrice / 1000000
		result = append(result, baiduSeedRow{
			Model:      model,
			Type:       "输入",
			InputPrice: &inputPerToken,
			Operator:   operator,
			Region:     region,
			Currency:   currency,
		})
		result = append(result, baiduSeedRow{
			Model:       model,
			Type:        "输出",
			OutputPrice: &outputPerToken,
			Operator:    operator,
			Region:      region,
			Currency:    currency,
		})
	}
	return result, rows.Err()
}

func writeJSON(path string, value any) error {
	data, err := json.MarshalIndent(value, "", "  ")
	if err != nil {
		return err
	}
	return os.WriteFile(path, data, 0644)
}