import { defineStore } from 'pinia'
import { ref, computed } from 'vue'
import { useApi } from '@/composables/useApi'
import { useToastStore } from '@/stores/toast'
import type { LootProfileSummary, LootProfileFull, LootApplyResult } from '@/types'

export const useLootStore = defineStore('loot', () => {
  const profiles = ref<LootProfileSummary[]>([])
  const currentProfile = ref<LootProfileFull | null>(null)
  const selectedContainer = ref<string | null>(null)
  const isLoading = ref(false)
  const isSaving = ref(false)
  const isApplying = ref(false)
  const isDirty = ref(false)
  const api = useApi()
  const toast = useToastStore()

  const activeProfile = computed(() => profiles.value.find(p => p.is_active) || null)

  async function fetchProfiles() {
    isLoading.value = true
    try {
      const res = await api.get<{ profiles: LootProfileSummary[] }>('/loot/profiles')
      profiles.value = res.profiles
    } catch (err) {
      toast.error((err as Error).message)
    } finally {
      isLoading.value = false
    }
  }

  async function loadProfile(id: string) {
    isLoading.value = true
    try {
      const res = await api.get<{ profile: LootProfileFull }>(`/loot/profiles/${id}`)
      currentProfile.value = res.profile
      isDirty.value = false
      // Select first container if none selected
      if (!selectedContainer.value && currentProfile.value.loot_table) {
        const keys = Object.keys(currentProfile.value.loot_table)
        if (keys.length > 0) selectedContainer.value = keys[0] ?? null
      }
    } catch (err) {
      toast.error((err as Error).message)
    } finally {
      isLoading.value = false
    }
  }

  async function createProfile(name: string, description?: string) {
    try {
      const res = await api.post<{ profile: LootProfileFull }>('/loot/profiles', {
        profile_name: name,
        description,
      })
      await fetchProfiles()
      currentProfile.value = res.profile
      isDirty.value = false
      toast.success(`Profile "${name}" created`)
      return res.profile
    } catch (err) {
      toast.error((err as Error).message)
      return null
    }
  }

  async function saveCurrentProfile() {
    if (!currentProfile.value) return
    isSaving.value = true
    try {
      await api.put(`/loot/profiles/${currentProfile.value.id}`, {
        profile_name: currentProfile.value.profile_name,
        description: currentProfile.value.description,
        loot_table: currentProfile.value.loot_table,
        loot_groups: currentProfile.value.loot_groups,
      })
      isDirty.value = false
      await fetchProfiles()
      toast.success('Profile saved')
    } catch (err) {
      toast.error((err as Error).message)
    } finally {
      isSaving.value = false
    }
  }

  async function deleteProfile(id: string) {
    try {
      await api.del(`/loot/profiles/${id}`)
      if (currentProfile.value?.id === id) {
        currentProfile.value = null
        selectedContainer.value = null
      }
      await fetchProfiles()
      toast.success('Profile deleted')
    } catch (err) {
      toast.error((err as Error).message)
    }
  }

  async function duplicateProfile(id: string) {
    try {
      const res = await api.post<{ profile: LootProfileFull }>(`/loot/profiles/${id}/duplicate`)
      await fetchProfiles()
      toast.success(`Profile duplicated as "${res.profile.profile_name}"`)
      return res.profile
    } catch (err) {
      toast.error((err as Error).message)
      return null
    }
  }

  async function applyToServer(id: string, multiplier: number) {
    isApplying.value = true
    try {
      const res = await api.post<LootApplyResult>(`/loot/profiles/${id}/apply`, { multiplier })
      await fetchProfiles()
      toast.success(res.message)
      return res
    } catch (err) {
      toast.error((err as Error).message)
      return null
    } finally {
      isApplying.value = false
    }
  }

  async function importProfile(name: string, lootTable: Record<string, any>, lootGroups?: Record<string, any>) {
    try {
      const res = await api.post<{ profile: LootProfileFull }>('/loot/import', {
        profile_name: name,
        loot_table: lootTable,
        loot_groups: lootGroups || {},
      })
      await fetchProfiles()
      toast.success(`Profile "${name}" imported`)
      return res.profile
    } catch (err) {
      toast.error((err as Error).message)
      return null
    }
  }

  async function exportProfile(id: string, multiplier: number) {
    try {
      return await api.get<{ profile_name: string; multiplier: number; loot_table: any; loot_groups: any }>(
        `/loot/export/${id}?multiplier=${multiplier}`,
      )
    } catch (err) {
      toast.error((err as Error).message)
      return null
    }
  }

  function markDirty() {
    isDirty.value = true
  }

  return {
    profiles,
    currentProfile,
    selectedContainer,
    isLoading,
    isSaving,
    isApplying,
    isDirty,
    activeProfile,
    fetchProfiles,
    loadProfile,
    createProfile,
    saveCurrentProfile,
    deleteProfile,
    duplicateProfile,
    applyToServer,
    importProfile,
    exportProfile,
    markDirty,
  }
})