package server

import (
	"regexp"
	"strings"
)

// kokoroVoices is the built-in fallback list of voices shipped with Kokoro-FastAPI.
// Used when the live GET /v1/audio/voices request to Kokoro fails.
// Grouped by language prefix:
//
//	af_ / am_  American English female / male
//	bf_ / bm_  British English female / male
//	ef_ / em_  Spanish female / male
//	ff_        French female
//	hf_ / hm_  Hindi female / male
//	if_ / im_  Italian female / male
//	jf_ / jm_  Japanese female / male
//	pf_ / pm_  Portuguese female / male
//	zf_ / zm_  Chinese female / male
var kokoroVoices = []string{
	// American English
	"af_alloy", "af_aoede", "af_bella", "af_heart", "af_jadzia",
	"af_jessica", "af_kore", "af_nicole", "af_nova", "af_river",
	"af_sarah", "af_sky",
	"am_adam", "am_echo", "am_eric", "am_fenrir", "am_liam",
	"am_michael", "am_onyx", "am_puck",
	// British English
	"bf_alice", "bf_emma", "bf_lily",
	"bm_daniel", "bm_fable", "bm_george", "bm_lewis",
	// Spanish
	"ef_dora", "em_alex",
	// French
	"ff_siwis",
	// Hindi
	"hf_alpha", "hf_beta", "hm_omega", "hm_psi",
	// Italian
	"if_sara", "im_nicola",
	// Japanese
	"jf_alpha", "jf_gongitsune", "jf_nezumi", "jf_tebukuro", "jm_kumo",
	// Portuguese
	"pf_dora", "pm_alex",
	// Chinese
	"zf_xiaobei", "zf_xiaoni", "zf_xiaoxiao", "zf_xiaoyi",
	"zm_yunjian", "zm_yunxi", "zm_yunxia", "zm_yunyang",
}

// stripMarkdown removes common markdown syntax from src, returning plain text
// suitable for TTS or display. Not a full markdown parser — handles the most
// common constructs (headings, bold/italic, code blocks, links, blockquotes).
func stripMarkdown(src string) string {
	src = regexp.MustCompile(`(?m)^#{1,6}\s+`).ReplaceAllString(src, "")
	src = regexp.MustCompile(`\*{1,3}|_{1,3}`).ReplaceAllString(src, "")
	src = regexp.MustCompile("(?s)```.*?```").ReplaceAllString(src, "")
	src = regexp.MustCompile("`[^`]*`").ReplaceAllString(src, "")
	src = regexp.MustCompile(`\[([^\]]+)\]\([^)]+\)`).ReplaceAllString(src, "$1")
	src = regexp.MustCompile(`!\[[^\]]*\]\([^)]+\)`).ReplaceAllString(src, "")
	src = regexp.MustCompile(`(?m)^>\s?`).ReplaceAllString(src, "")
	src = regexp.MustCompile(`(?m)^[-*_]{3,}\s*$`).ReplaceAllString(src, "")
	src = regexp.MustCompile(`\n{3,}`).ReplaceAllString(src, "\n\n")
	return strings.TrimSpace(src)
}