basedbank/app/src/main/java/sh/sar/basedbank/util/ContactsCache.kt

package sh.sar.basedbank.util

import android.content.Context
import org.json.JSONArray
import org.json.JSONObject
import sh.sar.basedbank.api.mib.MibBeneficiary
import sh.sar.basedbank.api.mib.MibBeneficiaryCategory

object ContactsCache {

    private const val PREFS = "contacts_cache"
    private const val KEY_CONTACTS = "mib_contacts"
    private const val KEY_CATEGORIES = "mib_categories"

    fun save(
        context: Context,
        contacts: List<MibBeneficiary>,
        categories: List<MibBeneficiaryCategory>
    ) {
        val prefs = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE).edit()

        val contactsArr = JSONArray()
        for (c in contacts) {
            contactsArr.put(JSONObject().apply {
                put("benefNo", c.benefNo)
                put("benefName", c.benefName)
                put("benefNickName", c.benefNickName)
                put("benefAccount", c.benefAccount)
                put("benefType", c.benefType)
                put("bankColor", c.bankColor)
                put("benefBankName", c.benefBankName)
                put("bankCode", c.bankCode)
                put("benefStatus", c.benefStatus)
                put("transferCyDesc", c.transferCyDesc)
                put("customerImgHash", c.customerImgHash ?: "")
                put("benefCategoryId", c.benefCategoryId)
                put("profileId", c.profileId)
            })
        }
        prefs.putString(KEY_CONTACTS, CacheEncryption.encrypt(contactsArr.toString()))

        val catArr = JSONArray()
        for (cat in categories) {
            catArr.put(JSONObject().apply {
                put("id", cat.id)
                put("categoryName", cat.categoryName)
                put("numBenef", cat.numBenef)
            })
        }
        prefs.putString(KEY_CATEGORIES, CacheEncryption.encrypt(catArr.toString()))
        prefs.apply()
    }

    fun clear(context: Context) {
        context.getSharedPreferences(PREFS, Context.MODE_PRIVATE).edit().clear().apply()
    }

    fun loadContacts(context: Context): List<MibBeneficiary> {
        val raw = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
            .getString(KEY_CONTACTS, null) ?: return emptyList()
        return try {
            val json = CacheEncryption.decrypt(raw)
            val arr = JSONArray(json)
            (0 until arr.length()).map { i ->
                val o = arr.getJSONObject(i)
                MibBeneficiary(
                    benefNo = o.optString("benefNo"),
                    benefName = o.optString("benefName"),
                    benefNickName = o.optString("benefNickName"),
                    benefAccount = o.optString("benefAccount"),
                    benefType = o.optString("benefType"),
                    bankColor = o.optString("bankColor", "#888888"),
                    benefBankName = o.optString("benefBankName"),
                    bankCode = o.optString("bankCode"),
                    benefStatus = o.optString("benefStatus"),
                    transferCyDesc = o.optString("transferCyDesc", "MVR"),
                    customerImgHash = o.optString("customerImgHash").takeIf { it.isNotBlank() },
                    benefCategoryId = o.optString("benefCategoryId", "0"),
                    profileId = o.optString("profileId", "")
                )
            }
        } catch (e: Exception) {
            emptyList()
        }
    }

    private fun bmlKey(loginId: String) = "bml_contacts_$loginId"

    fun saveBml(context: Context, loginId: String, contacts: List<MibBeneficiary>) {
        val arr = JSONArray()
        for (c in contacts) {
            arr.put(JSONObject().apply {
                put("benefNo", c.benefNo)
                put("benefName", c.benefName)
                put("benefNickName", c.benefNickName)
                put("benefAccount", c.benefAccount)
                put("benefType", c.benefType)
                put("bankColor", c.bankColor)
                put("benefBankName", c.benefBankName)
                put("bankCode", c.bankCode)
                put("benefStatus", c.benefStatus)
                put("transferCyDesc", c.transferCyDesc)
                put("benefCategoryId", c.benefCategoryId)
                put("profileId", c.profileId)
            })
        }
        context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
            .edit().putString(bmlKey(loginId), CacheEncryption.encrypt(arr.toString())).apply()
    }

    fun loadBml(context: Context, loginId: String): List<MibBeneficiary> {
        val raw = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
            .getString(bmlKey(loginId), null) ?: return emptyList()
        return try {
            val arr = JSONArray(CacheEncryption.decrypt(raw))
            (0 until arr.length()).map { i ->
                val o = arr.getJSONObject(i)
                MibBeneficiary(
                    benefNo = o.optString("benefNo"),
                    benefName = o.optString("benefName"),
                    benefNickName = o.optString("benefNickName"),
                    benefAccount = o.optString("benefAccount"),
                    benefType = o.optString("benefType"),
                    bankColor = o.optString("bankColor", "#0066A1"),
                    benefBankName = o.optString("benefBankName"),
                    bankCode = o.optString("bankCode"),
                    benefStatus = o.optString("benefStatus"),
                    transferCyDesc = o.optString("transferCyDesc", "MVR"),
                    customerImgHash = null,
                    benefCategoryId = o.optString("benefCategoryId", "BML"),
                    profileId = o.optString("profileId", "")
                )
            }
        } catch (_: Exception) { emptyList() }
    }

    fun loadBml(context: Context, loginIds: List<String>): List<MibBeneficiary> =
        loginIds.flatMap { loadBml(context, it) }

    fun saveFahipay(context: Context, contacts: List<MibBeneficiary>, categories: List<MibBeneficiaryCategory>) {
        val prefs = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE).edit()
        val arr = JSONArray()
        for (c in contacts) arr.put(JSONObject().apply {
            put("benefNo", c.benefNo)
            put("benefNickName", c.benefNickName)
            put("benefAccount", c.benefAccount)
            put("bankColor", c.bankColor)
            put("benefBankName", c.benefBankName)
            put("benefCategoryId", c.benefCategoryId)
        })
        prefs.putString("fahipay_contacts", CacheEncryption.encrypt(arr.toString()))
        val catArr = JSONArray()
        for (cat in categories) catArr.put(JSONObject().apply {
            put("id", cat.id)
            put("categoryName", cat.categoryName)
            put("numBenef", cat.numBenef)
        })
        prefs.putString("fahipay_categories", CacheEncryption.encrypt(catArr.toString()))
        prefs.apply()
    }

    fun loadFahipay(context: Context): List<MibBeneficiary> {
        val raw = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
            .getString("fahipay_contacts", null) ?: return emptyList()
        return try {
            val arr = JSONArray(CacheEncryption.decrypt(raw))
            (0 until arr.length()).map { i ->
                val o = arr.getJSONObject(i)
                MibBeneficiary(
                    benefNo = o.optString("benefNo"),
                    benefName = "",
                    benefNickName = o.optString("benefNickName"),
                    benefAccount = o.optString("benefAccount"),
                    benefType = "FAHIPAY",
                    bankColor = o.optString("bankColor", "#FF6B00"),
                    benefBankName = o.optString("benefBankName"),
                    bankCode = "",
                    benefStatus = "",
                    transferCyDesc = "",
                    customerImgHash = null,
                    benefCategoryId = o.optString("benefCategoryId"),
                    profileId = ""
                )
            }
        } catch (_: Exception) { emptyList() }
    }

    fun loadFahipayCategories(context: Context): List<MibBeneficiaryCategory> {
        val raw = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
            .getString("fahipay_categories", null) ?: return emptyList()
        return try {
            val arr = JSONArray(CacheEncryption.decrypt(raw))
            (0 until arr.length()).map { i ->
                val o = arr.getJSONObject(i)
                MibBeneficiaryCategory(o.optString("id"), o.optString("categoryName"), o.optInt("numBenef"))
            }
        } catch (_: Exception) { emptyList() }
    }

    fun loadCategories(context: Context): List<MibBeneficiaryCategory> {
        val raw = context.getSharedPreferences(PREFS, Context.MODE_PRIVATE)
            .getString(KEY_CATEGORIES, null) ?: return emptyList()
        return try {
            val json = CacheEncryption.decrypt(raw)
            val arr = JSONArray(json)
            (0 until arr.length()).map { i ->
                val o = arr.getJSONObject(i)
                MibBeneficiaryCategory(
                    id = o.optString("id"),
                    categoryName = o.optString("categoryName"),
                    numBenef = o.optInt("numBenef", 0)
                )
            }
        } catch (e: Exception) {
            emptyList()
        }
    }
}